Business Radar | Topbuild Corp. | Annual Report of 2016

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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 1-36870 TopBuild Corp. (Exact Name of Registrant as Specified in its Charter) Delaware 47-3096382 (State or Other Jurisdiction of Incorporation or (I.R.S. Employer Organization) Identification No.) 475 North Williamson Boulevard 32114 Daytona Beach, Florida (Zip Code) (Address of Principal Executive Offices) (386) 304-2200 (Registrant's telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which registered Common stock, par value $0.01 per share New York Stock Exchange Securities registered pursuant to section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ☒ Yes ☐ No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. ☐ Yes ☒ No Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). ☒ Yes ☐ No Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ☒ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer ☒ Accelerated filer ☐ Smaller reporting company ☐ Non-accelerated filer ☐ (Do not check if a smaller reporting company) Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No The aggregate market value of the voting and non-voting common stock held by non-affiliates of the registrant based on the closing price of $53.07 per share as reported on the New York Stock Exchange on June 30, 2017, was approximately $2.0 billion. Number of shares of common stock outstanding as of February 14, 2018: 35,540,271 DOCUMENTS INCORPORATED BY REFERENCE Portions of the Registrant’s Proxy Statement for its 2018 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission no later than 120 days after December 31, 2017, are incorporated by reference into Part III of this Form 10-K.

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Table of Contents TOPBUILD CORP. TABLE OF CONTENTS Page No. PART I. Item 1. Business 4 Item 1A. Risk Factors 8 Item 1B. Unresolved Staff Comments 16 Item 2. Properties 16 Item 3. Legal Proceedings 16 Item 4. Mine Safety Disclosures 16 PART II. Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities 17 Item 6. Selected Historical Financial Data 19 Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations 20 Item 7A. Quantitative and Qualitative Disclosures about Market Risk 35 Item 8. Financial Statements 36 Report of Independent Registered Certified Public Accounting Firm 36 Consolidated Balance Sheets 38 Consolidated Statements of Operations 39 Consolidated Statements of Cash Flows 40 Consolidated Statements of Changes in Equity 41 Notes to Consolidated Financial Statements 42 Schedule II. Valuation and Qualifying Accounts 68 Item 9. Changes in Disagreements with Accountants on Accounting and Financial Disclosure 69 Item 9A. Controls and Procedures 69 Item 9B. Other Information 69 PART III. Item 10. Directors, Executive Officers, and Corporate Governance 70 Item 11. Executive Compensation 70 Item 12. Security Ownership of Certain Beneficial Owners and Management, and Related Stockholder Matters 70 Item 13. Certain Relationships and Related Transactions, and Director Independence 70 Item 14. Principal Accountant Fees and Services 70 PART IV. Item 15. Exhibits and Financial Statement Schedule 71 Item 16. Form 10-K Summary 71 Index to Exhibits 72 Signatures 75 2

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Table of Contents GLOSSARY We use acronyms, abbreviations, and other defined terms throughout this annual report on Form 10-K, as defined in the glossary below: Term Definition 2015 LTIP 2015 TopBuild Long-Term Incentive Plan, as amended from time to time 2016 Repurchase Program $50 million share repurchase program authorized by the Board on March 1, 2016 2017 ASR Agreement $100 million accelerated share repurchase agreement with Bank of America, N.A. 2017 Repurchase Program $200 million share repurchase program authorized by the Board on February 24, 2017 Annual Report Annual report filed with the SEC on Form 10-K pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 ASC Accounting Standards Codification ASR Accelerated share repurchase ASU Accounting Standards Update Board Board of Directors BofA Bank of America, N.A. Canyon Canyon Insulation, Inc. Capital Capital Insulation, Inc. Current Report Current report filed with the SEC on Form 8-K pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 EBITDA Earnings before income taxes, depreciation, and amortization EcoFoam Bella Insulutions Inc., DBA EcoFoam/Insulutions Effective Date June 30, 2015, the date of the "Separation" ETR Effective tax rate Exchange Act The Securities Exchange Act of 1934, as amended FASB Financial Accounting Standards Board FCCR Fixed charge coverage ratio GAAP Generally accepted accounting principles in the United States of America Guarantors Certain wholly-owned domestic subsidiaries of TopBuild Corp. Lenders Bank of America, N.A., together with the other lenders party to the "New Credit Agreement" LIBOR London interbank offered rate Masco Masco Corporation or Former Parent Midwest Midwest Fireproofing, LLC MR Insulfoam MR Insulfoam, LLC Net Leverage Ratio As defined in the “New Credit Agreement,” the ratio of outstanding indebtedness, less up to $75 million of unrestricted cash, to EBITDA New Credit Agreement Senior secured credit agreement and related security and pledge agreement dated May 5, 2017, with the "Lenders" NYSE New York Stock Exchange Old Credit Agreement Senior secured credit agreement, as amended, and related collateral and guarantee documentation dated June 9, 2015, with PNC Bank, N.A. as administrative agent, and the other lenders and agents party thereto Options Stock option awards Owens Corning Owens Corning Sales, LLC Quarterly Report Quarterly report filed with the SEC on Form 10-Q pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Revolving Facility Senior secured revolving credit facilities available under the credit agreements. With respect to the Old Credit Agreement, a $125 million facility with applicable sublimits for letters of credit and swingline loans. With respect to the New Credit Agreement, a $250 million facility with applicable sublimits for letters of credit and swingline loans. RSA Restricted stock award S&P 500 Index Standard and Poor’s 500 Index SEC United States Securities and Exchange Commission Separation Distribution of 100 percent of the outstanding capital stock of TopBuild to holders of Masco common stock Services Business Masco's Installation and Other Services segment, spun-off as TopBuild Superior Superior Insulation Products, LLC TopBuild TopBuild Corp. and its wholly-owned consolidated domestic subsidiaries. Also, the "Company," "we," "us," and "our" Total Leverage Ratio As defined in the “New Credit Agreement,” the ratio of outstanding indebtedness, including letters of credit, to EBITDA TTM Trailing twelve months U.S. United States of America Valley Valley Insulation, Inc. 3

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Table of Contents PART I Item 1. BUSINES S Overview TopBuild Corp., headquartered in Daytona Beach, Florida, is the leading purchaser, installer, and distributor of insulation products to the United States construction industry, based on revenue. Prior to June 30, 2015, we operated as a subsidiary of Masco, which trades on the NYSE under the symbol “MAS.” We were incorporated in Delaware in February 2015 as Masco SpinCo Corp. and we changed our name to TopBuild Corp. on March 20, 2015. On June 30, 2015, the Separation was completed and on July 1, 2015, we began trading on the NYSE under the symbol “BLD.” Segment Overview We operate in two segments: our Installation segment, TruTeam, which accounts for 64% of our sales, and our Distribution segment, Service Partners, which accounts for 36% of our sales. We believe that having both TruTeam and Service Partners provides us with a number of distinct competitive advantages. First, the combined buying power of our two business segments, along with our national scale, strengthens our ties to the major manufacturers of insulation and other building products. This helps to ensure we are buying competitively and ensures the availability of supply to our local branches and distribution centers. The overall effect is driving efficiencies through our supply chain. Second, being a leader in both installation and distribution allows us to more effectively reach a broader set of builder customers, regardless of their size or geographic location in the U.S., and leverage housing growth wherever it occurs. Third, during industry downturns, many insulation contractors who buy directly from manufacturers during industry peaks return to purchasing through distributors. As a result, this helps to reduce our exposure to cyclical swings in our business. Installation (TruTeam) We provide insulation installation services nationwide through our TruTeam contractor services business which has over 175 installation branches located in 41 states. Various insulation applications we install include: · Fiberglass batts and rolls · Blown-in loose fill fiberglass · Blown-in loose fill cellulose · Polyurethane spray foam In addition to insulation products, which represented 74% of our installation segment’s sales, we also install other building products including rain gutters, fireproofing, garage doors, fireplaces, shower enclosures, and closet shelving. We handle every stage of the installation process including material procurement supplied by leading manufacturers, project scheduling and logistics, multi-phase professional installation, and installation quality assurance. The amount of insulation in a new home is regulated by various building and energy codes. Our TruTeam customer base includes the largest single-family homebuilders in the U.S. as well as local/single-family custom builders, multi-family builders, commercial general contractors, remodelers, and individual homeowners. 4

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Table of Contents Through our Home Services subsidiary and our Environments for Living® program, we offer a number of services and tools designed to assist builders with applying the principles of building science to new home construction. We offer pre-construction plan reviews using industry-standard home-energy analysis software, various inspection services, and diagnostic testing. We believe our Home Services subsidiary is one of the largest Home Energy Rating System Index (HERS) raters in the U.S. Distribution (Service Partners) We distribute insulation and other building products including rain gutters, fireplaces, closet shelving, and roofing materials through our Service Partners business, which has over 70 distribution centers located in 32 states. Our Service Partners customer base consists of thousands of insulation contractors of all sizes, gutter contractors, weatherization contractors, other contractors, dealers, metal building erectors, and modular home builders. For further information on our segments, see Item 8. Financial Statements and Supplementary Data – Note 7. Segment Information. Demand for Our Products and Services Demand for our insulation products and services is driven by new single-family residential and multi-family home construction, commercial construction, remodeling and repair activity, changing building codes which require additional insulation, and the growing need for energy efficiency. Being a leader in both installation and distribution allows us to reach a broader set of customers more effectively, regardless of their size or geographic location within the U.S. We recognize that competition for the installation and sale of insulation and other building products occurs in localized geographic markets throughout the country, and as such our operating model is based on branches building and maintaining local customer relationships. At the same time, our local operations benefit from centralized functions such as information technology, credit, and purchasing. Competitive Advantages The market for the distribution and installation of building products is highly fragmented and competitive. Barriers to entry for local competitors are relatively low, increasing the risk that additional competitors will emerge. Our ability to maintain our competitive position in our industry depends on a number of factors including our national scale, sales channels, diversified product lines, strong local presence, and strong cash flows. National scale. With our national footprint, we provide products and services to each major construction line of business in the U.S. Our national scale, together with our centralized TopBuild executive management team, allow us to compete locally by: • Providing national and regional builders with broad geographic reach, while maintaining consistent policies and practices that enable reliable, high‑quality products and services across many geographies and building sites • Establishing strong ties to major manufacturers of insulation and other building products that help ensure we are buying competitively, have availability of supply to our local branches and distribution centers, and are driving efficiencies throughout our supply chain • Providing consistent, customized support and geographic coverage to our customers 5

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Table of Contents • Maintaining an operating capacity that allows us to ramp‑up rapidly, without major incremental investment, to target forecasted growth in housing starts and construction activity in each of our lines of business anywhere in the U.S. • Leveraging investments in systems and processes and sharing best practices across both our installation and distribution businesses Two avenues to reach the builder. We believe having both an installation and distribution business provides a number of advantages to reaching our customers and driving share gains. Our installation business customer base includes builders of all sizes. Our branches go to market with the local brands that small builders recognize and value, and our national footprint is appealing to large builders who value consistency across a broad geography. Our distribution business focuses on selling to small contractors who are particularly adept at cultivating the local relationships with small custom builders. Being a leader in both installation and distribution allows us to more effectively reach a broader set of builder customers, regardless of their size or geographic location within the U.S., and leverage housing growth wherever it occurs. Diversified lines of business. In response to the housing downturn in prior years, we enhanced our ability to serve the commercial construction and residential repair/remodel markets. Although the commercial construction and residential repair/remodel markets are affected by many of the same macroeconomic and local economic factors that drive residential new construction, commercial construction and residential repair/remodel have historically followed different cycles than residential new construction. We have thus positioned our business to benefit from a greater mix of residential repair/remodel activity and commercial construction activity than we have historically, which helps reduce volatility because we are less dependent on residential new construction, and also enables us to better respond to changes in customer demand. Strong local presence. Competition for the installation and sale of insulation and other building products to builders occurs in localized geographic markets throughout the country. Builders in each local market have different options in terms of choosing among insulation installers and distributors for their projects, and value local relationships, quality, and timeliness. Our installation branches are locally branded businesses that are recognized within the communities in which they operate. Our distribution centers service primarily local contractors, lumberyards, retail stores and others who, in turn, service local homebuilders and other customers. Our operating model, in which individual branches and distribution centers maintain local customer relationships, enables us to develop local, long‑tenured relationships with these customers, build local reputations for quality, service and timeliness, and provide specialized products and personalized services tailored to a geographic region. At the same time, our local operations benefit from centralized functions such as information technology, credit and purchasing, and the resources and scale efficiencies of an installation and distribution business that has a presence across the U.S. Reduced exposure to residential housing cyclicality. During industry downturns many insulation contractors, who buy directly from manufacturers during industry peaks, return to purchasing through distributors for small, “Less Than Full Truckload” shipments, reduced warehousing needs, and access to purchases on credit. This drives incremental customers to Service Partners during these points in the business cycle, offsetting decreases at TruTeam as a result of a downturn. Our leadership position in both installation and distribution helps to reduce exposure to cyclical swings in our lines of business. Strong cash flow, low capital investment, and favorable working capital fund organic growth. Over the last several years, we have reduced fixed costs and improved our labor utilization. As a result, we can achieve profitability at lower levels of demand as compared to historical periods. For further discussion on our cash flows and liquidity, see Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – Liquidity and Capital Resources. Major Customers We have a diversified portfolio of customers and no single customer accounted for 3 percent or more of our total revenues. Our top ten customers accounted for approximately 10 percent of our total sales in 2017. 6

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Table of Contents Backlog Due to our customers’ need for timely installation of our products, our installation jobs are scheduled and completed within a short timeframe. We do not consider backlog material to our business. Suppliers Our businesses depend on our ability to obtain an adequate supply of high quality products and components from manufacturers and other suppliers. We rely heavily on third party suppliers for our products and key components. We source the majority of our building products from four primary U.S. based residential fiberglass insulation manufacturers: Knauf, CertainTeed, Johns Manville, and Owens Corning. Failure by our suppliers to provide us with an adequate supply of high quality products on commercially reasonable terms, or to comply with applicable legal requirements, could have a material, adverse effect on our financial condition or operating results. We believe we generally have positive relationships with our suppliers. Employees At December 31, 2017, we had approximately 8,400 employees. Approximately 700 of our employees are currently covered by collective bargaining or other similar labor agreements. Executive Management See Item 10. Directors, Executive Officers, and Corporate Governance. Legislation and Regulation We are subject to U.S. federal, state, and local regulations, particularly those pertaining to health and safety (including protection of employees and consumers), labor standards/regulations, contractor licensing, and environmental issues. In addition to complying with current effective requirements and requirements that will become effective at a future date, even more stringent requirements could eventually be imposed on our industries. Additionally, some of our products and services may require certification by industry or other organizations. Compliance with these regulations and industry standards may require us to alter our distribution and installation processes and our sourcing, which could adversely impact our competitive position. Further, if we do not effectively and timely comply with such regulations and industry standards, our operating results could be negatively affected. Additional Information We make available free of charge on our website, www.topbuild.com, our Annual Reports, Quarterly Reports, and Current Reports as soon as reasonably practicable after these reports are filed with or furnished to the SEC. Use of our Website to Distribute Material Company Information We use our website as a channel of distribution for important Company information. We routinely post on our website important information, including press releases, investor presentations and financial information, which may be accessed by clicking on the Investors section of www.topbuild.com. We also use our website to expedite public access to time-critical information regarding our Company in advance of or in lieu of distributing a press release or a filing with the SEC disclosing the same information. Therefore, investors should look to the Investors subpage of our website for important and time-critical information. Visitors to our website can also register to receive automatic e-mail and other notifications alerting them when new information is made available on the Investor Resources subpage of our website. 7

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Table of Contents Item 1A. RISK FACTOR S There are a number of business risks and uncertainties that could affect our business and cause our actual results to differ from past performance or expected results. We consider the following risks and uncertainties to be those material to our business activities. Additional risks and uncertainties not presently known to us, or that we currently believe to be immaterial, also may impact our business, financial condition, and results of operations. We urge investors to consider carefully the risk factors described below in evaluating the information contained in this Annual Report. Our business relies on residential new construction activity, and to a lesser extent on residential repair/remodel and commercial construction activity, all of which are cyclical. Macroeconomic and local economic conditions, including consumer confidence levels, fluctuations in home prices, unemployment and underemployment levels, student loan debt, household formation rates, mortgage tax deduction limits, the age and volume of the housing stock, the availability of home equity loans and mortgages and the interest rates for such loans, and other factors, affect consumers’ discretionary spending on both residential new construction projects and residential repair/remodel activity. The commercial construction market is affected by macroeconomic and local economic factors such as interest rates, credit availability for commercial construction projects, material costs, employment rates, office vacancy rates, and office absorption rates. Changes or uncertainty regarding these and other factors could adversely affect our results of operations and our financial position. We may not be successful in identifying and making or integrating acquisitions. Part of our growth strategy is dependent on our ability to make acquisitions. We may be unable to make accretive acquisitions or realize expected benefits of any acquisitions for any of the following reasons: · failure to identify attractive targets in the marketplace; · incorrect assumptions regarding the future results of acquired operations or assets, expected cost reductions, or other synergies expected to be realized as a result of acquiring operations or assets; · failure to obtain acceptable financing; or · restrictions in our debt agreements. Acquisitions involve risks that could negatively affect our operating results, cash flows, and liquidity. We have made, and in the future may continue to make, strategic acquisitions, which may expose us to operational challenges and risks, including: · the ability to profitably manage acquired businesses or successfully integrate the acquired business’ operations, financial reporting, and accounting control systems into our business; · the expense of integrating acquired businesses; · increased indebtedness; · the ability to fund cash flow shortages that may occur if anticipated revenue is not realized or is delayed, whether by general economic or market conditions, or unforeseen internal difficulties; · the availability of funding sufficient to meet increased capital needs; 8

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Table of Contents · diversion of management’s attention; and · the ability to retain or hire qualified personnel required for expanded operations. In addition, acquired companies may have liabilities that we failed, or were unable, to discover in the course of performing due diligence investigations. We cannot assure you that the indemnification granted to us by sellers of acquired companies will be sufficient in amount, scope, or duration to fully offset the possible liabilities associated with businesses or properties we assume upon consummation of an acquisition. We may learn additional information about our acquired businesses that could materially adversely affect us, such as unknown or contingent liabilities and liabilities related to compliance with applicable laws. Any such liabilities, individually or in the aggregate, could have a material adverse effect on our business. Failure to successfully manage the operational challenges and risks associated with, or resulting from, acquisitions could adversely affect our results of operations, cash flows and liquidity. Borrowings or issuances of debt associated with these acquisitions could also result in higher levels of indebtedness which could affect our ability to service our debt within the scheduled repayment terms. We are dependent on third‑party suppliers and manufacturers to provide us with an adequate supply of quality products, and the loss of a large supplier or manufacturer could negatively affect our operating results. Failure by our suppliers to provide us with an adequate supply of quality products on commercially reasonable terms, or to comply with applicable legal requirements, could have a material adverse effect on our financial condition or operating results. While we believe that we have generally positive relationships with our suppliers, the fiberglass insulation industry has encountered both shortages and periods of significant oversupply during past housing market cycles, leading to volatility in prices and allocations of supply, affecting our results. While we do not believe we depend on any sole or limited source of supply, we do source the majority of our building products, primarily insulation, from a limited number of large suppliers. The loss of a large supplier, or a substantial decrease in the availability of products or components from our suppliers, could disrupt our business and adversely affect our operating results. The long‑term performance of our businesses relies on our ability to attract, develop, and retain talented personnel, including sales representatives, branch managers, installers, and truck drivers, while controlling our labor costs. We are highly dependent on the skills and experience of our senior management team and other skilled and experienced personnel. The failure to attract and retain key employees could negatively affect our competitive position and operating results. Our ability to control labor costs and attract qualified labor is subject to numerous external factors including prevailing wage rates, labor shortages, the impact of legislation or regulations governing wages and hours, labor relations, immigration, healthcare benefits, and other insurance costs. In addition, we compete with other companies to recruit and retain qualified installers and truck drivers in a tight labor market, and we invest significant resources in training and motivating them to maintain a high level of job satisfaction. These positions generally have high turnover rates, which can lead to increased training and retention costs. Because we operate our business through highly dispersed locations across the U.S., our operations may be materially adversely affected by inconsistent local practices and the operating results of individual branches and distribution centers may vary. Our operating structure can make it difficult for us to coordinate procedures across our operations. In addition, our branches and distribution facilities may require significant oversight and coordination from headquarters to support their growth. Inconsistent implementation of corporate strategy and policies at the local or regional level could materially and adversely affect our overall profitability, business, results of operations, financial condition, and prospects. 9

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Table of Contents Our profit margins could decrease due to changes in the costs of the products we install and/or distribute. The principal building products that we install and distribute have been subject to price changes in the past, some of which have been significant. Our results of operations for individual quarters can be, and have been, hurt by a delay between the time building product cost increases are implemented and the time we are able to increase prices for our installation or distribution services, if at all. Our supplier purchase prices may depend on our purchasing volume or other arrangements with any given supplier. While we have been able to achieve cost savings through volume purchasing or other arrangements with suppliers in the past, we may not be able to consistently continue to receive advantageous pricing for the products we distribute and install. If we are unable to maintain pricing consistent with prior periods, our costs could increase and our margins may be adversely affected. We face significant competition. The market for the distribution and installation of building products is highly fragmented and competitive and barriers to entry are relatively low. Our installation competitors include national contractors, regional contractors, and local contractors, and we face many or all of these competitors for each project on which we bid. Our insulation distribution competitors include specialty insulation distributors (one multi‑regional, several regional, and numerous local). In some instances, our insulation distribution business sells products to companies that may compete directly with our installation service business. We also compete with broad line building products distributors, big box retailers, and insulation manufacturers. In addition to price, we believe that competition in our industry is based largely on customer service and the quality and timeliness of installation services and distribution product deliveries in each local market. Our business is seasonal and is susceptible to adverse weather conditions and natural disasters. We also may be adversely affected by any natural or man-made disruptions to our facilities. We normally experience stronger sales during the third and fourth calendar quarters, corresponding with the peak season for residential new construction and residential repair/remodel activity. Sales during the winter weather months are seasonally slower due to the lower construction activity. Historically, the installation of insulation lags housing starts by several months. In addition, to the extent that hurricanes, severe storms, earthquakes, droughts, floods, fires, other natural disasters, or similar events occur in the geographic areas in which we operate, our business may be adversely affected. Any widespread disruption to our facilities resulting from a natural disaster, an act of terrorism, or any other cause could damage a significant portion of our inventory and supply stock, and could materially impair our ability to provide installation and/or distribution services for our customers. Claims and litigation could be costly. We are, from time to time, involved in various claims, litigation matters, and regulatory proceedings that arise in the ordinary course of our business and which could have a material adverse effect on us. These matters may include contract disputes, automobile liability and other personal injury claims, warranty disputes, environmental claims or proceedings, other tort claims, employment and tax matters, the quality of products sourced from our suppliers, and other proceedings and litigation, including class actions. In addition, we are exposed to potential claims by our employees or others based on job related hazards. We have also experienced class action lawsuits in recent years predicated upon claims for antitrust, product liability, construction defects, competition, and wage and hour issues. We have generally denied liability and have vigorously defended these cases. Due to their scope and complexity, however, these lawsuits can be particularly costly to defend and resolve, and we have and may continue to incur significant costs as a result of these types of lawsuits. Our builder and contractor customers are subject to construction defect and warranty claims in the ordinary course of their business. Our contractual arrangements with these customers may include our agreement to defend and indemnify them against various liabilities. 10

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Table of Contents Although we intend to defend all claims and litigation matters vigorously, given the inherently unpredictable nature of claims and litigation, we cannot predict with certainty the outcome or effect of any claim or litigation matter. We expect to maintain insurance against some, but not all, of these risks of loss resulting from claims and litigation. We may elect not to obtain insurance if we believe the cost of available insurance is excessive relative to the risks presented. The levels of insurance we maintain may not be adequate to fully cover any and all losses or liabilities. If any significant accident, judgment, claim, or other event is not fully insured or indemnified against, it could have a material adverse impact on our business, financial condition, and results of operations. We may not be able to identify new products and new product lines and integrate them into our distribution network, which may impact our ability to compete. Our expansion into new markets may present competitive, distribution, and regulatory challenges that differ from current ones. Our business depends in part on our ability to identify future products and product lines that complement existing products and product lines and that respond to our customers’ needs. We may not be able to compete effectively unless our product selection keeps up with trends in the markets in which we compete or trends in new products. In addition, our ability to integrate new products and product lines into our distribution network could affect our ability to compete. We are subject to competitive pricing pressure from our customers. Residential homebuilders historically have exerted significant pressure on their outside suppliers to keep prices low because of their market share, and ability to leverage such market share, in the highly fragmented building products supply and services industry. In addition, consolidation among homebuilders, and changes in homebuilders’ purchasing policies or payment practices could result in additional pricing pressure. The development of alternatives to distributors in the supply chain could cause a decrease in our sales and operating results and limit our ability to grow our business. Our distribution customers could begin purchasing more of their products directly from manufacturers, which would result in decreases in our net sales and earnings. Our suppliers could invest in infrastructure to expand their own local sales force and sell more products directly to our distribution customers, which also would negatively impact our business. In addition, our distribution customers may elect to establish their own building products manufacturing and distribution facilities, or give advantages to manufacturing or distribution intermediaries in which they have an economic stake. Union organizing activity and work stoppages could delay or reduce availability of products that we install and increase our costs. Approximately 700 of our employees are currently covered by collective bargaining or other similar labor agreements that expire on various dates from March 2018 through June 2023. Any inability by us to negotiate collective bargaining arrangements could cause strikes or other work stoppages, and new contracts could result in increased operating costs. If any such strikes or other work stoppages occur, or if other employees become represented by a union, we could experience a disruption of our operations and higher labor costs. Further, if a significant number of additional employees were to unionize, including in the wake of any future legislation that makes it easier for employees to unionize, these risks would increase. In addition, certain of our suppliers have unionized work forces, and certain of the products we install and/or distribute are transported by unionized truckers. Strikes, work stoppages, or slowdowns could result in slowdowns or closures of facilities where the products that we install and/or distribute are manufactured, or could affect the ability of our suppliers to deliver such products to us. Any interruption in the production or delivery of these products could delay or reduce availability of these products and increase our costs. 11

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Table of Contents If we are required to take significant non‑cash charges, our financial resources could be reduced and our financial flexibility may be negatively affected. We have significant goodwill and other intangible assets related to business combinations on our balance sheet. The valuation of these assets is largely dependent upon the expectations for future performance of our businesses. Expectations about the growth of residential new construction, commercial construction, and residential repair/remodel activity may impact whether we are required to recognize non‑cash, pre‑tax impairment charges for goodwill and other indefinite‑lived intangible assets or other long‑lived assets. If the value of our goodwill, other intangible assets, or long‑lived assets is further impaired, our earnings and stockholders’ equity would be adversely affected and may impact our ability to raise capital in the future. Compliance with government regulation and industry standards could impact our operating results. We are subject to federal, state, and local government regulations, particularly those pertaining to health and safety, including protection of employees and consumers; employment laws, including immigration and wage and hour regulations; contractor licensing; and environmental issues. In addition to complying with current requirements, even more stringent requirements could be imposed in the future. Compliance with these regulations and industry standards is costly and may require us to alter our installation and distribution processes, product sourcing, or business practices, and makes recruiting and retaining labor in a tight labor market more challenging. Compliance with these regulations and industry standards could also divert our attention and resources to compliance activities, and could cause us to incur higher costs. Further, if we do not effectively and timely comply with such regulations and industry standards, our results of operations could be negatively affected and we could become subject to substantial penalties or other legal liability. If we encounter difficulties with our information technology systems, we could experience problems with customer service, inventory, collections, and cost control. Our operations are dependent upon our information technology systems to manage customer orders on a timely basis, to coordinate our installation and distribution activities across locations, and to manage invoicing. If we experience problems with our information technology systems, we could experience, among other things, delays in receiving customer orders, placing orders with suppliers, and scheduling production, installation services, or shipments. Since we rely heavily on information technology, both in serving our customers and in our enterprise infrastructure, in order to achieve our objectives, we may be vulnerable to damage or intrusion from a variety of cyber‑attacks including computer viruses, worms, or other malicious software programs that gain access to our systems. Such events could have an adverse impact on revenue, harm our reputation, and cause us to incur legal liability and costs, which could be significant, to address and remediate such events and related security concerns. Our business relies significantly on the expertise of our employees, and we generally do not have intellectual property that is protected by patents. Our business is significantly dependent upon our expertise in installation and distribution logistics, including significant expertise in the application of building science through our Environments for Living ® program. We rely on a combination of trade secrets and contractual confidentiality provisions and, to a much lesser extent, copyrights and trademarks, to protect our proprietary rights. Accordingly, our intellectual property is more vulnerable than it would be if it were protected primarily by patents. We may be required to spend significant resources to monitor and protect our proprietary rights, and in the event a misappropriation or breach of our proprietary rights occurs, our competitive position in the market may be harmed. In addition, competitors may develop competing technologies and expertise that renders our expertise obsolete or less valuable. 12

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Table of Contents Changes in building codes and consumer preferences could affect our ability to market our service offerings and our profitability. Moreover, if we do not respond to evolving customer preferences or changes in building standards, or if we do not maintain or expand our leadership in building science, our business, results of operation, financial condition, and cash flow would be adversely affected. Each of our lines of business is impacted by local and state building codes and consumer preferences, including a growing focus on energy efficiency. Our competitive advantage is due, in part, to our ability to respond to changes in consumer preferences and building codes. However, if our installation and distribution services do not adequately or quickly adapt to changing preferences and building standards, we may lose market share to competitors, which would adversely affect our business, results of operation, financial condition, and cash flows. Further, our growth prospects could be harmed if consumer preferences and building standards evolve more slowly than we anticipate towards energy‑efficient service offerings, which are more profitable than minimum code service offerings. We may have future capital needs and may not be able to obtain additional financing on acceptable terms. Economic and credit market conditions, the performance of the construction industry, and our financial performance, as well as other factors may constrain our financing abilities. Our ability to secure additional financing and to satisfy our financial obligations will depend upon our future operating performance; the availability of credit; economic conditions; and financial, business, and other factors, many of which are beyond our control. Restrictions in our existing credit facility, or any other indebtedness we may incur in the future, could adversely affect our business, financial condition, results of operations, ability to make distributions to shareholders, and the value of our common stock. Our existing term loan and revolving credit facility, or any future credit facility or other indebtedness we enter into, may limit our ability to, among other things: · Incur or guarantee additional debt · Make distributions or dividends on, or redeem or repurchase shares of our common stock · Make certain investments, acquisitions, or other restricted payments · Incur certain liens or permit them to exist · Acquire, merge, or consolidate with another company · Transfer, sell, or otherwise dispose of substantially all of our assets Our revolving credit facility contains, and any future credit facility or other debt instrument we may enter into will also likely contain, covenants requiring us to maintain certain financial ratios and meet certain tests, such as a fixed charge coverage ratio, a leverage ratio, and a minimum test (see Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations). Our ability to comply with those financial ratios and tests can be affected by events beyond our control, and we may not be able to comply with those ratios and tests when required to do so under the applicable debt instruments. The provisions of our credit facility, or other debt instruments, may affect our ability to obtain future financing and pursue attractive business opportunities and our flexibility in planning for, and reacting to, changes in business conditions. In addition, a failure to comply with the provisions of our existing credit facility, any future credit facility, or other debt instruments could result in a default or an event of default that could enable our lenders or other debt holders to declare the outstanding principal of that debt, together with accrued and unpaid interest, to be immediately due and payable. If the payment of our debt is accelerated, our assets may be insufficient to repay such debt in full, and our stockholders could experience a partial or total loss of their investment. 13

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Table of Contents Adverse credit ratings could increase our costs of borrowing money and limit our access to capital markets and commercial credit. Our credit is not currently rated by Moody’s Investor Service, Standard & Poor’s, or another rating service. However, if Moody’s, Standard & Poor’s, or another rating service rates our credit, such rating could be below investment grade, which may increase our borrowing costs. Additionally, if our indebtedness were rated, then any subsequent downgrade of such rating could further increase our borrowing costs or otherwise limit our access to the capital and commercial credit markets. Our historical financial information is not necessarily indicative of our future financial condition or future results of operations, nor does it reflect what our financial condition or results of operations would have been as an independent public company during the periods presented prior to the Separation. · Our historical financial results for the period prior to the Separation reflect allocations of expenses for services historically provided by Masco, and this allocation of Masco corporate expenses may be significantly lower than the comparable expenses we would have incurred as an independent company during such period. · Our working capital requirements and capital expenditures for the periods prior to the Separation were satisfied as part of Masco’s corporate‑wide cash management and capital expenditure programs, and our cost of debt and other capital may have significantly differed from that reflected in our historical financial statements. The historical financial information prior to the Separation may not fully reflect the costs associated with being an independent public company. In connection with the Separation, Masco indemnified us for certain liabilities and we indemnified Masco for certain liabilities. If we are required to act under these indemnities to Masco, we may need to divert cash to meet those obligations, which could adversely affect our financial results. Moreover, the Masco indemnity may not be sufficient to compensate us for the full amount of liabilities for which it may be liable, and Masco may not be able to satisfy its indemnification obligations to us in the future. Indemnities that we may be required to provide Masco are not subject to any cap, may be significant, and could negatively affect our business, particularly indemnities relating to our actions that could affect the tax‑free nature of the Separation. Third parties could also seek to hold us responsible for any of the liabilities that Masco has agreed to retain, and under certain circumstances, we may be subject to continuing contingent liabilities of Masco following the Separation, such as certain shareholder litigation claims. Further, Masco may not be able to fully satisfy its indemnification obligations or such indemnity obligations may not be sufficient to cover our liabilities. Moreover, even if we ultimately succeed in recovering from Masco any amounts for which we are held liable, we may be temporarily required to bear these losses ourselves. Each of these risks could negatively affect our business, results of operations, liquidity, and financial condition. Compliance with and changes in tax laws could adversely affect our performance. We are subject to extensive tax liabilities imposed by multiple jurisdictions including income taxes; indirect taxes which include excise and duty, sales and use, and gross receipts taxes; payroll taxes; franchise taxes; withholding taxes; and ad valorem taxes. New tax laws and regulations, and changes in existing tax laws and regulations, are continuously being enacted or proposed which could result in increased expenditures for tax liabilities in the future. Many of these liabilities are subject to periodic audits by the respective taxing authority. Subsequent changes to our tax liabilities as a result of these audits may subject us to interest and penalties. 14

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Table of Contents Risks Relating to Our Common Stock The price of our common stock may fluctuate substantially, and the value of your investment may decline. The market price of our common stock could fluctuate significantly due to a number of factors, many of which are beyond our control, including: · Fluctuations in our quarterly or annual earnings results, or those of other companies in our industry · Failures of our operating results to meet our guidance the estimates of securities analysts or the expectations of our stockholders, or changes by securities analysts in their estimates of our future earnings · Announcements by us or our customers, suppliers, or competitors · Changes in laws or regulations which adversely affect our industry or us · Changes in accounting standards, policies, guidance, interpretations, or principles · General economic, industry, and stock market conditions · Future sales of our common stock by our stockholders · Future issuances of our common stock by us · Other factors described in these “Risk Factors” and elsewhere in this Annual Report Provisions in our certificate of incorporation and bylaws, and certain provisions of Delaware law, could delay or prevent a change in control. The existence of some provisions of our certificate of incorporation and bylaws and Delaware law could discourage, delay, or prevent a change in control that a stockholder may consider favorable. These include provisions: · Providing for a classified board of directors · Providing that our directors may be removed by our stockholders only for cause · Establishing supermajority vote requirements for our stockholders to amend certain provisions of our certificate of incorporation and our bylaws · Authorizing a large number of shares of stock that are not yet issued, which could have the effect of preventing or delaying a change in control if our board of directors issued shares to persons that did not support such change in control, or which could be used to dilute the stock ownership of persons seeking to obtain control · Prohibiting stockholders from calling special meetings of stockholders or taking action by written consent · Establishing advance notice requirements for nominations of candidates for election to our board of directors or for proposing matters that can be acted on by stockholders at the annual stockholder meetings In addition, we are subject to Section 203 of the Delaware General Corporation Law, which may have an anti‑takeover effect with respect to transactions not approved in advance by our board of directors, including discouraging takeover attempts that could have resulted in a premium over the market price for shares of our common stock. 15

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Table of Contents These provisions apply even if a takeover offer is considered beneficial by some stockholders and could delay or prevent an acquisition that our board of directors determines is not in our and our stockholders’ best interests. Our bylaws designate a state or federal court located within the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a preferred judicial forum for disputes with us or our directors, officers, or other employees. Our bylaws provide that, unless we consent in writing to the selection of an alternative forum, the sole and exclusive forum for (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of breach of a fiduciary duty owed by any director, officer, or other employee to us or our stockholders, (iii) any action asserting a claim arising pursuant to any provision of Delaware General Corporation Law, our certificate of incorporation (including any certificate of designations for any class or series of our preferred stock), or our bylaws, in each case, as amended from time to time, or (iv) any action asserting a claim governed by the internal affairs doctrine, shall be a state or federal court located within the State of Delaware, in all cases subject to the court’s having personal jurisdiction over the indispensable parties named as defendants. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock is deemed to have received notice of, and consented to, the foregoing provision. This forum selection provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable or cost‑effective for disputes with us or our directors, officers, or other employees, which may discourage such lawsuits against us and our directors, officers, and employees. Item 1B. UNRESOLVED STAFF COMMENT S None. Item 2. PROPERTIE S We operate over 175 installation branch locations and over 70 distribution centers in the United States, most of which are leased. In January 2017, we moved into our new, 65,700 square foot corporate office located at 475 North Williamson Boulevard in Daytona Beach, FL 32114. Our Daytona Beach headquarters lease expires in February 2029, assuming no exercise of any options set forth in the lease. We believe that our facilities have sufficient capacity and are adequate for our installation and distribution requirements. Item 3. LEGAL PROCEEDING S None. Item 4. MINE SAFETY DISCLOSURE S Not applicable. 16

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Table of Contents PART I I Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDE R MATTERS, AND ISSUER PURCHASES OF EQUITY SECURITIES Market Information. Our common stock is traded on the NYSE under the symbol “BLD”. The following table presents the high and low sales prices of our common stock for each quarter of the two most recent years: 2016 High Low First quarter $ 30.65 $ 23.02 Second quarter $ 38.05 $ 29.23 Third quarter $ 38.94 $ 32.03 Fourth quarter $ 39.51 $ 28.81 2017 First quarter $ 48.33 $ 35.76 Second quarter $ 55.30 $ 45.89 Third quarter $ 65.44 $ 51.64 Fourth quarter $ 76.40 $ 60.32 As of February 14, 2018, there were approximately 3,070 holders of our issued and outstanding common stock. Dividends. No dividends were paid during the years ended December 31, 2017 and 2016. Our credit agreement, in certain circumstances, limits the amount of dividends we may distribute. We do not anticipate declaring cash dividends to holders of our common stock in the foreseeable future. Issuer Purchases of Equity Securities. The following table provides information regarding the repurchase of our common stock for the three months ended December 31, 2017, in thousands, except share and per share data: Number of Approximate Shares Dollar Value Purchased as of Shares that Part of May Yet Be Total Average Price Publicly Purchased Number of Paid per Announced Under the Shares Common Plans or Plans or Period Purchased Share Programs Programs October 1, 2017 - October 31, 2017 — $ — — $ 65,000 November 1, 2017 - November 30, 2017 — $ — — $ 65,000 December 1, 2017 - December 31, 2017 — $ — — $ 65,000 Total — $ — — During the three months ended September 30, 2017, we paid $100.0 million for an initial delivery of 1,507,443 shares of our common stock, representing an estimated 80 percent of the total number of shares we expected, at the time we entered into the agreement, to receive under the 2017 ASR Agreement. For more information see Item 8. Financial Statements and Supplementary Data – Note 18. Share Repurchase Program. No shares were repurchased in the quarter ended December 31, 2017. All repurchases were made using cash resources. Excluded from this disclosure are shares repurchased to settle statutory employee tax withholdings related to the vesting of stock awards and exercise of options. 17

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Table of Contents Performance Graph and Table. The following graph and table compares the cumulative total return of our common stock from July 1, 2015, the date on which our common stock began trading on the NYSE, through December 31, 2017, with the total cumulative return of the Russel 2000 Index and the S&P 500 Index. The graph and table assume an initial investment of $100 in our common stock and each of the two indices at the close of business on July 1, 2015, and reinvestment of dividends. 7/1/2015 9/30/2015 12/31/2015 TopBuild Corp. $ 100 $ 115 $ 114 S&P 500 Index $ 100 $ 93 $ 99 Russel 2000 Index $ 100 $ 88 $ 91 3/31/2016 6/30/2016 9/30/2016 12/31/2016 TopBuild Corp. $ 110 $ 134 $ 123 $ 132 S&P 500 Index $ 101 $ 103 $ 107 $ 111 Russel 2000 Index $ 90 $ 93 $ 102 $ 110 3/31/2017 6/30/2017 9/30/2017 12/31/2017 TopBuild Corp. $ 174 $ 197 $ 241 $ 281 S&P 500 Index $ 118 $ 122 $ 127 $ 136 Russel 2000 Index $ 113 $ 116 $ 123 $ 127 18

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Table of Contents Item 6. SELECTED HISTO RICAL FINANCIAL DATA The following table sets forth selected historical financial data that should be read in conjunction with“Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our financial statements and notes thereto, included in this Annual Report. The Consolidated Statements of Operations data for the years ended December 31, 2017, 2016, and 2015, and the Consolidated Balance Sheet data as of December 31, 2017 and 2016, are derived from our audited financial statements included in this Annual Report. The Consolidated Statements of Operations data for the year ended December 31, 2014 and 2013, and the Consolidated Balance Sheet data as of December 31, 2015, 2014, and 2013, were derived from our audited financial statements not included in this Annual Report. The selected historical financial data in this section is not intended to replace our historical financial statements and the related notes thereto. Prior to the Separation, our historical financial results included allocations of general and corporate expense from Masco and as such our historical results are not necessarily comparable to our subsequently reported results. For more information, see Item 8. Financial Statements and Supplementary Data – Note 1. Summary of Significant Accounting Policies. Year ended December 31, (in thousands) 2017 2016 2015 2014 2013 Net sales $ 1,906,266 $ 1,742,850 $ 1,616,580 $ 1,512,077 $ 1,411,524 Operating profit $ 136,864 $ 121,604 $ 83,531 $ 40,717 $ 24,103 Income (loss) from continuing operations $ 158,133 $ 72,606 $ 79,123 $ 10,496 $ (11,551) Income (loss) per common share on income (loss) from continuing operations (a): Basic $ 4.41 $ 1.93 $ 2.10 $ 0.28 $ (0.31) Diluted $ 4.32 $ 1.92 $ 2.09 $ 0.28 $ (0.31) At period end: Total assets $ 1,749,549 $ 1,690,119 $ 1,642,249 $ 1,476,424 $ 1,466,946 Total debt $ 241,887 $ 178,800 $ 193,457 $ — $ — Equity $ 996,519 $ 972,547 $ 915,729 $ 952,291 $ 1,002,685 (a) For comparative purposes, the computation of basic and diluted earnings per common share for the year ended December 31, 2014, and prior periods presented were calculated using the shares distributed at Separation. 19

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Table of Contents Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIO N AND RESULTS OF OPERATIONS The financial and business analysis below provides information which we believe is relevant to an assessment and understanding of our financial position, results of operations, and cash flows. This financial and business analysis should be read in conjunction with the financial statements and related notes. Statements contained in this report that reflect our views about future periods, including our future plans and performance, constitute “forward-looking statements” under the Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as “will,” “would,” “anticipate,” “expect,” “believe,” “designed,” “plan,” or “intend,” the negative of these terms, and similar references to future periods. These views involve risks and uncertainties that are difficult to predict and, accordingly, our actual results may differ materially from the results discussed in our forward-looking statements. We caution you against unduly relying on any of these forward-looking statements. Our future performance may be affected by our reliance on residential new construction, residential repair/remodel, and commercial construction; our reliance on third-party suppliers and manufacturers; our ability to attract, develop, and retain talented personnel and our sales and labor force; our ability to maintain consistent practices across our locations; our ability to maintain our competitive position; and our ability to realize the expected benefits of the Separation. We discuss the material risks we face under the caption entitled “Risk Factors” in Item 1A of this Annual Report. Our forward-looking statements in this Annual Report speak only as of the date of this Annual Report. Factors or events that could cause our actual results to differ may emerge from time to time and it is not possible for us to predict all of them. Unless required by law, we undertake no obligation to update publicly any forward-looking statements as a result of new information, future events, or otherwise. Executive Summary We are the leading purchaser, installer, and distributor of insulation products to the U.S. construction industry, based on revenue. Demand for our products and services is driven primarily by residential new construction, commercial construction, and residential repair/remodel activity throughout the U.S. A number of local and national factors influence activity in each of our lines of business, including demographic trends, interest rates, employment levels, business investment, supply and demand for housing stock, availability of credit, foreclosure rates, consumer confidence, and general economic conditions. Activity in the construction industry is seasonal, typically peaking in the summer months. Because installation of insulation historically lags housing starts by several months, we generally see a corresponding benefit in our operating results during the third and fourth quarters. Competitive Advantages We believe we are well positioned to grow our business both organically and through strategic acquisitions as a result of a number of competitive advantages, including: National Scale. Our national scale enables us to drive supply chain efficiencies and provide the tools necessary for our branches and distribution centers to effectively compete locally. Given the highly fragmented homebuilding industry, our leadership positions in installation, distribution, and building science services allow us to tailor our approach to each local market, which differs in characteristics such as customer mix, competitive activity, building codes, and labor availability. Moreover, serving multiple lines of business provides additional revenue growth potential with which to leverage our fixed costs, and reduces our exposure to the cyclical swings in residential new construction. The combined buying power of TruTeam and Service Partners strengthens our ties to the major manufacturers of insulation and other building products. 20

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Table of Contents Strong Local Presence. Competition for the installation and sale of insulation and other building products to builders occurs in localized geographic markets across the country. Builders in each local market have different options in terms of choosing among insulation installers and distributors for their projects and products and value local relationships, quality, and timeliness. Our national footprint includes over 175 branches in our Installation segment, which are locally branded businesses that are recognized within the communities in which they operate. We also have over 70 distribution centers in our Distribution segment, primarily serving local contractors, lumberyards, retails stores, and others who, in turn, service local homebuilders and other customers. Through both businesses we have developed local, long-tenured relationships with a reputation for quality, service, and timeliness. Two Avenues to Reach the Builder. Being a leader in both installation and distribution allows us to more effectively reach a broader set of builder customers, regardless of their size or geographic location within the U.S., and leverage housing growth wherever it occurs. Strategy Our long-term strategy is to grow net sales, income, and operating cash flows and remain the leading insulation installer and distributor by revenue. In order to achieve these goals, we plan to: · Capitalize on the U.S. housing market recovery through focused organic growth and accretive aligned acquisitions · Gain share in commercial construction · Continue to leverage our expertise in building science through our Environments for Living® program to benefit from the increasing focus on energy efficiency and trends in building codes · Grow our business through acquisitions of complementary businesses Our operating results depend heavily on residential new construction activity and, to a lesser extent, on commercial construction and residential repair/remodel activity, all of which are cyclical. We are also dependent on third-party suppliers and manufacturers providing us with an adequate supply of high-quality products. We are optimistic on housing and expect the current moderate pace of improvement to continue for several years. The U.S. housing market has grown from approximately 587,000 housing starts in 2010 to approximately 1,202,000 housing starts in 2017, well below the 50-year historical average of approximately 1.5 million housing starts per year. While the current headwinds of credit availability, student debt, and labor shortages within the construction industry are moderating the rate of recovery, we believe that they are also extending the recovery cycle. We believe there is pent-up demand for housing, and this demand will eventually be satisfied with higher levels of new construction. 2017 Results In 2017 our results were positively affected by six acquisitions completed in 2017 and one acquisition completed in 2016, increased sales volume of residential new construction and commercial construction activity, and increased selling prices. Our sales volume increased across all of businesses. Compared to 2016, our Installation segment contributed organic sales volume increases of 3.6 percent and our Distribution segment contributed sales volume increases of 6.3 percent to our total sales increase, prior to intercompany eliminations. Selling price increases in our Installation segment increased our sales by 1.5 percent compared to 2016. Selling price increases in our Distribution segment increased our sales by 0.1 percent compared to 2016. Our operating results were positively impacted by increased sales volume, higher selling prices, improved labor utilization, and lower health insurance costs, partially offset by higher share-based compensation expense, amortization expense, and bonus expense. 21

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Table of Contents Liquidity and Capital Resources We have access to liquidity through our cash from operations and available borrowing capacity under our New Credit Agreement, which provides for borrowing and/or standby letter of credit issuances of up to $250 million under a Revolving Facility as well as $100 million of additional term loan capacity under a delayed draw feature, which remains available to us until May 5, 2018. For additional information see Item 8. Financial Statements and Supplementary Data – Note 5. Long-Term Debt. We believe that our cash flows from operations, combined with our current cash levels and available borrowing capacity, will be adequate to support our ongoing operations and to fund our debt service requirements, capital expenditures, and working capital for at least the next twelve months. Cash flows are seasonally stronger in the third and fourth quarters as a result of increased new construction activity. The following table summarizes our total liquidity, in thousands: As of December 31, 2017 2016 2015 Cash and cash equivalents (a) $ 56,521 $ 134,375 $ 112,848 Revolving Facility 250,000 125,000 125,000 Less: standby letters of credit (47,055) (49,080) (55,096) Capacity under Revolving Facility 202,945 75,920 69,904 Additional term loan capacity under delayed draw feature 100,000 ― ― Total liquidity $ 359,466 $ 210,295 $ 182,752 (a) Our cash and cash equivalents consist of AAA-rated money market funds as well as cash held in our demand deposit accounts. We occasionally use performance bonds to ensure completion of our work on certain larger customer contracts that can span multiple accounting periods. Performance bonds generally do not have stated expiration dates; rather, we are released from the bonds as the contractual performance is completed. We also have bonds outstanding for licensing and insurance. The following table summarizes our outstanding bonds, in thousands: As of December 31, 2017 2016 Outstanding bonds: Performance bonds $ 44,765 $ 22,312 Licensing, insurance, and other bonds 17,013 13,480 Total bonds $ 61,778 $ 35,792 22

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Table of Contents Cash Flows Significant sources and (uses) of cash and cash equivalents are summarized as follows, in thousands: Year Ended December 31, 2017 2016 2015 Changes in cash and cash equivalents: Net cash provided by operating activities $ 113,192 $ 76,785 $ 56,011 Purchases of property and equipment (25,308) (14,156) (13,644) Acquisition of businesses (84,090) (3,476) — Proceeds from sale of property and equipment 603 718 805 Other investing, net 199 113 632 Net transfer from Former Parent — 664 72,965 Cash distribution paid to Former Parent — — (200,000) Proceeds from issuance of long-term debt 250,000 — 200,000 Repayment of long-term debt (186,250) (15,000) (5,000) Payment of debt issuance costs (2,150) — (1,715) Proceeds from revolving credit facility 225,000 — — Repayments of revolving credit facility (225,000) — — Taxes withheld and paid on employees' equity awards (4,764) (1,825) (171) Repurchase of shares of common stock (139,286) (22,296) — Cash and cash equivalents (decrease) increase $ (77,854) $ 21,527 $ 109,883 Working capital: Receivables, net $ 308,508 $ 252,624 $ 235,549 Plus inventories, net 131,342 116,190 118,701 Less accounts payable (263,814) (241,534) (253,311) Working capital $ 176,036 $ 127,280 $ 100,939 Increase in working capital from prior year $ 48,756 $ 26,341 $ 2,511 Working capital as a percentage of TTM net sales (a) 9.1 % 7.3 % 6.2 % (a) Net sales for the TTM have been adjusted for the pro forma effect of acquired branches. Net cash flows provided by operating activities increased $36.4 million for the twelve months ended December 31, 2017. The increase was due to a $85.5 million increase in net income, as well as the satisfaction of payables during 2016 related to strategic inventory purchases in the fourth quarter of 2015 which were not replicated in 2016, as well as nominal changes to payment terms for select suppliers which accelerated payments in 2016. The increase in the generation of cash for prepaid expenses and other current assets related to a change in our prepaid income tax account tied to the timing of estimated tax payments. Generators of cash were partially offset by strategic inventory purchases in the fourth quarter of 2017 which did not occur in 2016. An additional decrease in cash provided by operations related to the decrease in the December 31, 2017, deferred income taxes, net balance related to the change in the federal statutory rate from 35 percent to 21 percent, enacted in December 2017, and effective January 1, 2018. The increase in working capital as a percentage of TTM net sales as of December 31, 2017, was primarily due to acquired receivables from commercial activity which has longer collection terms, inefficiencies in acquired companies’ collections processes, and increased receivables driven by higher organic commercial sales mix which comes with longer collection terms, partially offset by an increase in our accounts payable balance related to improved management of our supplier payments. 23

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Table of Contents Net cash used in investing activities was $108.6 million for the year ended December 31, 2017, primarily comprised of $84.1 million for the acquisition of substantially all of the assets of Midwest, EcoFoam, MR Insulfoam, Capital, Superior, and Canyon and $25.3 million for purchases of property and equipment partially related to our decision to begin purchasing rather than leasing vehicles, partially offset by $0.6 million of proceeds from the sale of property and equipment. Net cash used in investing activities was $16.8 million for the year ended December 31, 2016, primarily comprised of $14.2 million of purchases of property and equipment and $3.5 million for the acquisition of substantially all of the assets of Valley, partially offset by $0.7 million of proceeds from the sale of property and equipment. Net cash used in financing activities was $82.5 million for the year ended December 31, 2017. We received $250 million of proceeds from issuance of long-term debt related to our New Credit Agreement. We used $175 million of the proceeds to pay off all amounts outstanding under our Old Credit Agreement. We used $139.3 million of cash for common stock repurchases related to our share repurchase programs including our ASR program, $5.0 million of repayments of our previous long-term debt, $6.3 million of payments for our New Credit Agreement, $2.2 million for payment of debt issuance costs, and $4.8 million for purchases of common stock for tax withholding obligations related to the vesting and exercise of share-based incentive awards during the year ended December 31, 2017. We drew $225.0 million on our revolving credit facility and made repayments of $225.0 million during the year ended December 31, 2017. Net cash used in financing activities was $38.5 million for the year ended December 31, 2016, primarily comprised of $22.3 million of repurchases of our common stock related to our $50.0 million share repurchase program announced in March 2016, $15.0 million of repayments of our long- term debt, and $1.8 million of purchases of common stock for tax withholding obligations related to the vesting of share-based incentive awards during the year ended December 31, 2016. Results of Operations We report our financial results in conformity with GAAP. The following table sets forth our net sales, gross profit, operating profit, and margins, as reported inour Consolidated Statements of Operations, in thousands: Year Ended December 31, 2017 2016 2015 Net sales $ 1,906,266 $ 1,742,850 $ 1,616,580 Cost of sales 1,445,157 1,342,506 1,258,551 Cost of sales ratio 75.8 % 77.0 % 77.9 % Gross profit 461,109 400,344 358,029 Gross profit margin 24.2 % 23.0 % 22.1 % Selling, general, and administrative expense (exclusive of significant legal settlement, shown separately below) 294,245 278,740 274,498 Selling, general, and administrative expense (exclusive of significant legal settlement, shown separately below) to sales ratio 15.4 % 16.0 % 17.0 % Significant legal settlement 30,000 — — Significant legal settlement to sales ratio 1.6 % — — Operating profit 136,864 121,604 83,531 Operating profit margin 7.2 % 7.0 % 5.2 % Other expense, net (8,824) (5,331) (9,416) Income tax benefit (expense) from continuing operations 30,093 (43,667) 5,008 Income from continuing operations $ 158,133 $ 72,606 $ 79,123 Net margin on continuing operations 8.3 % 4.2 % 4.9 % 24

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Table of Contents The following table details our same branch sales and sales from acquired businesses, in thousands: Year Ended December 31, 2017 2016 2015 Net sales: Same branch (a) $ 1,831,641 $ 1,740,731 $ 1,616,580 Acquired 74,625 2,119 — Total $ 1,906,266 $ 1,742,850 $ 1,616,580 (a) We define same branch sales as sales from branches in operation for at least 12 full calendar months. Comparison of the Years Ended December 31, 2017 and December 31, 2016 Sales and Operations Net sales for 2017 increased 9.4 percent, or $163.4 million, to $1.9 billion. The increase was principally driven by our seven acquisitions completed during 2017 and 2016, increased organic sales volume, and overall increased selling prices. Our sales benefited primarily from the overall continued improvement in the housing market, as well as continued focus on organically growing our residential and commercial activity. Our gross profit margins were 24.2 percent and 23.0 percent for 2017 and 2016, respectively. Gross profit margin was positively impacted by favorable leverage on overall higher sales volume, increased selling prices, and improved labor utilization, partially offset by higher material cost. Selling, general, and administrative expense, exclusive of the significant legal settlement discussed below, as a percent of sales was 15.4 percent and 16.0 percent for 2017 and 2016, respectively. Decreased selling, general, and administrative expense as a percent of sales was a result of lower salaries expense relative to sales, lower health insurance expense, partially offset by higher bonus, share-based compensation, and amortization expenses, as well as closure and related costs noted below. We incurred a $30 million legal settlement during 2017, related to the settlement of a breach of contract action related to our termination of an insulation supply agreement with Owens Corning. Operating margins, exclusive of the significant legal settlement discussed above, were 8.8 percent and 7.0 percent for the 2017 and 2016, respectively. The increase in operating margins was a result of overall increased sales volume, higher selling prices, and lower health insurance costs, partially offset by higher share-based compensation, amortization, and bonus expenses. Closure and Related Costs We incurred expense of $2.0 million in 2017, related to the consolidation of certain back-office operations to our Daytona Beach, Florida, Branch Support Center. Other Income (Expense), Net Other income (expense), net increased $3.5 million to $8.8 million in 2017 compared with 2016. The increase primarily related to the $1.1 million loss on extinguishment of debt as well as higher interest expense due to our higher outstanding long-term debt balance related to our debt refinancing completed on May 5, 2017. Income Tax Benefit (Expense) from Continuing Operations Our ETR decreased from 37.6 percent in 2016 to (23.5) percent in 2017. The lower rate was primarily due to a beneficial adjustment of our deferred tax assets and liabilities to reflect the change in the federal statutory rate from 35 percent to 21 percent, enacted in December of 2017 and effective January 1, 2018, as well as a benefit from share-based compensation. 25

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Table of Contents Income from Continuing Operations Income from continuing operations increased $85.5 million from $72.6 million for 2016 to $158.1 million for 2017. Comparison of the Years Ended December 31, 2016 and December 31, 2015 Sales and Operations Net sales for 2016 increased 7.8 percent, or $126.3 million, to $1.7 billion. The increase was principally driven by overall increased sales volume and overall increased selling prices. Our sales benefited primarily from the overall continued improvement in the housing market, as well as continued focus on organically growing our residential and commercial activity. Our gross profit margins were 23.0 percent and 22.1 percent for 2016 and 2015, respectively. Gross profit margin was positively impacted by favorable leverage on overall higher sales volume, overall increased selling prices, improved labor utilization, and lower material cost. Selling, general, and administrative expense as a percent of sales was 16.0 percent and 17.0 percent for 2016 and 2015, respectively. Reduced selling, general, and administrative expense as a percent of sales is a result of overall increasing sales volume and price, benefits associated with business rationalizations, and other cost savings initiatives, partially offset by higher bonus and share-based compensation expense. For the periods prior to the Separation, our selling, general, and administrative expense included an allocation of Masco general corporate expense of $13.6 million in 2015. Such expense may not be indicative of our general corporate expense in the future. During the fourth quarter of 2015, we modified our vacation policy from being granted based on prior year service to being earned on a per pay period approach. This employee benefit policy change resulted in a $9.9 million expense reduction, which is reflected as a $6.1 million reduction of cost of sales and a $3.8 million reduction of selling, general, and administrative expenses in our Consolidated Statements of Operations. This item is reflected as a non-cash employee benefit policy change in our Consolidated Statements of Cash Flows. Operating margins for 2016 and 2015 were 7.0 percent and 5.2 percent, respectively. Changes in operating margins were positively impacted by increased sales volume, overall increased selling prices, lower material cost, improved labor utilization, lower corporate expenses, lower rationalization charges, and benefits associated with cost savings initiatives, partially offset by higher bonus and share- based compensation expense, and closure costs discussed below. Closure and Related Costs As part of the closure of 13 locations within our Installation and Distribution segments and the elimination of certain positions at our corporate headquarters, as announced in the first quarter of 2016, we incurred expenses of $0.9 million. Other Income (Expense), Net Interest expense was $5.6 million in 2016 incurred under the Credit Facility. Interest expense was $9.5 million in 2015, of which $3.2 million was incurred under the Old Credit Agreement while $6.3 million was allocated by Masco prior to the Separation. Income Tax Benefit (Expense) from Continuing Operations Our ETR for income from continuing operations were 37.6 percent and (6.8) percent in 2016 and 2015, respectively. Compared to our normalized tax rate of 38.0 percent, the variance in the ETR in 2016 was primarily due to the release of a valuation allowance related to State net operating losses. 26

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Table of Contents Income from Continuing Operations Income from continuing operations was $72.6 million and $79.1 million in 2016 and 2015, respectively. Material Trends in Our Business In general, the residential and commercial new construction industries are continuing to recover. We believe that household formations and the available housing supply point towards continued growth in new home construction. Increasing rental demand across multiple markets has led to an increase in multi-family housing construction, and the demand for commercial space is also increasing. However, residential construction activity remains below historical averages. We believe a number of factors, including credit availability, student debt, labor availability, and attitudes towards home ownership will continue to cause volatility in the housing market. We normally experience stronger sales during the third and fourth calendar quarters, corresponding with the peak season for residential new construction and residential repair/remodel activity. Sales during the winter weather months are seasonally slower due to lower construction activity. Historically, the installation of insulation lags housing starts by several months. 27

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Table of Contents 2017 and 2016 Business Segment Results The following table sets forth our net sales and operating profit information by business segment, in thousands: Percent Year Ended December 31, Increase 2017 2016 2017-2016 Sales by business segment (a): Installation $ 1,281,296 $ 1,150,168 11.4 % Distribution 719,759 676,672 6.4 % Intercompany eliminations and other adjustments (b) (94,789) (83,990) Net sales $ 1,906,266 $ 1,742,850 9.4 % Operating profit by business segment (c): Installation (exclusive of significant legal settlement, shown separately below) $ 139,316 $ 97,140 43.4 % Significant legal settlement (Installation segment) (30,000) — Distribution 68,733 59,654 15.2 % Intercompany eliminations and other adjustments (16,463) (14,388) Operating profit before general corporate expense 161,586 142,406 13.5 % General corporate expense, net (d) (24,722) (20,802) Operating profit $ 136,864 $ 121,604 12.5 % Operating profit margins: Installation (exclusive of significant legal settlement) 10.9 % 8.4 % Installation (inclusive of significant legal settlement) 8.5 % Distribution 9.5 % 8.8 % Operating profit margin before general corporate expense 8.5 % 8.2 % Operating profit margin 7.2 % 7.0 % (a) All of our operations are located in the U.S. (b) Intercompany eliminations include the elimination of intercompany profit of $16.5 million and $14.4 million for the years ended December 31, 2017 and 2016, respectively. (c) Segment operating profit for years ended December 31, 2017 and 2016, includes an allocation of general corporate expenses attributable to the operating segments which is based on direct benefit or usage (such as salaries of corporate employees who directly support the segment). (d) General corporate expense, net included expenses not specifically attributable to our segments for functions such as corporate human resources, finance, legal, including salaries, benefits, and other related costs. 2017 and 2016 Business Segment Results Discussion Changes in operating profit margins in the following business segment results discussion exclude general corporate expense, net in 2017 and 2016, as applicable. The construction industry continues to expand both in residential new home and commercial construction, however it is subject to inflationary pressures on costs. While we are seeing the impact of this growth with increases in the cost of building materials, we have been successful to date in achieving price increases, which more than offset the increased commodity costs. Installation Sales Sales increased $131.1 million, or 11.4 percent, in 2017 compared to 2016. Sales increased 6.3 percent from acquired branches and 1.5 percent due to increased selling prices. Sales also increased due to increased sales volume related to a higher level of activity in new home construction and an increased sales volume of commercial installation. 28

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Table of Contents Operating Results Operating margins in the Installation segment were 8.5 percent and 8.4 percent for 2017 compared to 2016. The increase in operating margins was primarily due to increased sales volume and related absorption of fixed costs, higher selling prices, improved sales productivity, as well as the benefits associated with cost savings initiatives. The increase was partially offset by the $30 million legal settlement with Owens Corning, as well as higher legal fee expense and higher material cost. Exclusive of the significant legal settlement, operating margins were 10.9 percent for 2017. Distribution Sales Sales increased $43.1 million, or 6.4 percent, in 2017 compared to 2016. The increase was primarily due to increased sales volume related to a higher level of activity in new home construction. Sales also benefited from a 0.1 percent increase in selling prices. Operating Results Operating margins in the Distribution segment were 9.5 percent and 8.8 percent for 2017 compared to 2016. Operating margins were positively impacted by increased sales volume related to a higher level of activity in new home construction as well as improved labor productivity and higher selling prices. The increase was partially offset by an increase in material cost. 29

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Table of Contents 2016 and 2015 Business Segment Results The following table sets forth our net sales and operating profit information by business segment, in thousands: Percent Year Ended December 31, Increase 2016 2015 2016-2015 Sales by business segment (a): Installation $ 1,150,168 $ 1,057,553 8.8 % Distribution 676,672 646,441 4.7 % Intercompany eliminations and other adjustments (b) (83,990) (87,414) Net sales $ 1,742,850 $ 1,616,580 7.8 % Operating profit by business segment (c): Installation $ 97,140 $ 55,232 75.9 % Distribution 59,654 55,700 7.1 % Intercompany eliminations and other adjustments (14,388) (4,796) Operating profit before general corporate expense 142,406 106,136 34.2 % General corporate expense, net (d) (20,802) (22,605) Operating profit $ 121,604 $ 83,531 45.6 % Operating profit margins: Installation 8.4 % 5.2 % Distribution 8.8 % 8.6 % Operating profit margin before general corporate expense 8.2 % 6.6 % Operating profit margin 7.0 % 5.2 % (a) All of our operations are located in the U.S. (b) Intercompany eliminations include the elimination of intercompany profit of $14.4 million and $15.6 million for the years ended December 31, 2016 and 2015, respectively. Other adjustments primarily include differences between estimated and actual corporate costs allocated to the segments for year ended December 31, 2015, as noted in footnote (c) below. (c) Segment operating profit for year ended December 31, 2016, includes an allocation of general corporate expenses attributable to the operating segments which is based on direct benefit or usage (such as salaries of corporate employees who directly support the segment). Segment operating profit for year ended December 31, 2015, includes an estimate of general corporate expense calculated based on a percentage of sales. For the year ended December 31, 2015, the $7.2 million difference between estimated expense and actual corporate expense, is recorded in intercompany eliminations and other adjustments. (d) General corporate expense, net included expenses not specifically attributable to our segments for functions such as corporate human resources, finance, legal, including salaries, benefits, and other related costs. 2016 and 2015 Business Segment Results Discussion Changes in operating profit margins in the following business segment results discussion exclude general corporate expense, net in 2016 and 2015, as applicable. Installation Sales Sales increased $92.6 million, or 8.8 percent, in 2016 compared to 2015. The increase in sales was primarily due to increased sales volume related to a higher level of activity in new home construction and an increased sales volume of commercial installation. Sales also increased 2.6 percent due to increased selling prices. Operating Results Operating profit increased $41.9 million, or 75.9 percent, in 2016 compared to 2015, primarily due to increased sales volume, higher selling prices, and related absorption of fixed costs, improved labor utilization, lower material cost, as well as the benefits associated with cost savings initiatives, partially offset by increased legal and bonus expenses. 30

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Table of Contents Distribution Sales Sales increased $30.2 million, or 4.7 percent, in 2016 compared to 2015. The increase was primarily due to increased sales volume related to a higher level of activity in new home construction. Sales were partially offset by a 2.3 percent decrease in selling prices. Operating Results Operating profit increased $4.0 million, or 7.1 percent, in 2016 compared to 2015. The increase was primarily due to increased sales volume related to a higher level of activity in new home construction and lower material cost, partially offset by a 2.3 percent decrease in selling prices. Commitments and Contingencies Litigation During the first quarter of 2017, we incurred a $30 million expense for a legal settlement with Owens Corning in connection with a breach of contract action related to our termination of an insulation supply contract. Under the terms of the settlement, we paid Owens Corning $30 million. The settlement resulted in the dismissal of the lawsuit filed in May 2016, in Toledo, Ohio. The settlement is reflected in the significant legal settlement line item within our Consolidated Statements of Operations for the year ended December 31, 2017. The settlement is also reflected in our installation segment’s operating results for the year ended December 31, 2017. We are subject to certain claims, charges, litigation, and other proceedings in the ordinary course of our business, including those arising from or related to contractual matters, intellectual property, personal injury, environmental matters, product liability, product recalls, construction defects, insurance coverage, personnel and employment disputes, antitrust, and other matters, including class actions. We believe we have adequate defenses in these matters, and we do not believe that the ultimate outcome of these matters will have a material adverse effect on us. However, there is no assurance that we will prevail in any of these pending matters, and we could in the future incur judgments, enter into settlements of claims, or revise our expectations regarding the outcome of these matters, which could materially impact our liquidity and our results of operations. Other Commitments We enter into contracts, which include customary indemnities that are standard for the industries in which we operate. Such indemnities include, among other things, customer claims against builders for issues relating to our products and workmanship. In conjunction with divestitures and other transactions, we occasionally provide customary indemnities relating to various items including, among others: the enforceability of trademarks; legal and environmental issues; and asset valuations. We evaluate the probability that we may incur liabilities under these customary indemnities and appropriately record an estimated liability when deemed probable. We occasionally use performance bonds to ensure completion of our work on certain larger customer contracts that can span multiple accounting periods. Performance bonds generally do not have stated expiration dates; rather, we are released from the bonds as the contractual performance is completed. Other types of bonds outstanding were principally license and insurance related. 31

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Table of Contents Critical Accounting Policies and Estimates We prepare our Consolidated Financial Statements in conformity with GAAP. The preparation of these financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements, and the reported amounts of sales and expenses during the reporting period. Actual results could differ from those estimates. Our significant accounting policies are more fully described in Item 8. Financial Statements and Supplementary Data – Note 1. Summary of Significant Accounting Policies. However, certain of our accounting policies considered critical are those we believe are both most important to the portrayal of our financial condition and operating results and require our most difficult, subjective, or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. Judgments and uncertainties affecting the application of those policies may result in materially different amounts being reported under different conditions or using different assumptions. We consider the following policies to be most critical in understanding the judgments that are involved in preparing our Consolidated Financial Statements. Revenue Recognition and Receivables We recognize revenue for our Installation segment using the percentage of completion method of accounting with respect to each particular order within a given customer’s contract, based on the amount of material installed at that customer’s location and the associated labor costs, as compared to the total expected cost for the particular order. Each contract contains one or more individual orders, which are based on services delivered. The amount of revenue recognized for our Installation segment that had not been billed as of December 31, 2017 and 2016, was $37.1 million and $28.9 million, respectively. Revenue from our Distribution segment is recognized when title to products and risk of loss transfers to our customers. At time of sale we record estimated reductions to revenue for customer programs and incentive offerings, including special pricing and other volume-based incentives. We maintain allowances for doubtful accounts receivable for estimated losses resulting from the inability of customers to make required payments. In addition, we monitor our customer receivable balances and the credit worthiness of our customers on an on‑going basis. During downturns in our markets, declines in the financial condition and creditworthiness of customers impact the credit risk of the receivables involved and we have incurred additional bad debt expense related to customer defaults. Goodwill and Other Intangible Assets We record the excess of the purchase price for business combinations over the fair value of identifiable tangible and intangible assets as goodwill. We perform our annual impairment testing of goodwill in the fourth quarter of each year, or as events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. When assessing goodwill for impairment, we have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, we determine it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then we perform a two-step impairment test. If we conclude otherwise, then no further action is taken. We also have the option to bypass the qualitative assessment and only perform a quantitative assessment, which is the first step of the two- step impairment test. In completing the two-step impairment test, we complete the impairment testing utilizing a discounted cash flow method. We selected this methodology because we believe that it is comparable to what would be used by other market participants. Our operating segments are reporting units that engage in business activities for which discrete financial information, including long range forecasts, is available. We have identified our segments as our reporting units and complete the impairment testing of goodwill at the operating segment level, as defined by accounting guidance. Fair value for our reporting units is determined using a discounted cash flow method which includes significant unobservable inputs (Level 3 inputs). Determining market values using a discounted cash flow method requires us to make significant estimates and assumptions, including long term projections of cash flows, market conditions, and appropriate discount rates. Our judgments are based on historical experience, current market trends, consultations with external valuation specialists, and 32

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Table of Contents other information. While we believe that the estimates and assumptions underlying the valuation methodology are reasonable, changes to estimates and assumptions could result in different outcomes. In estimating future cash flows, we rely on internally generated long range forecasts for sales and operating profits, including capital expenditures, and generally a one to three percent long term assumed annual growth rate of cash flows for periods after the long range forecast. We generally develop these forecasts based upon, among other things, recent sales data for existing products, and estimated U.S. housing starts. When necessary, an impairment loss is recognized to the extent that a reporting unit’s recorded goodwill exceeds its implied fair value. We did not recognize any impairment charges for goodwill for the years ended December 31, 2017, 2016, and 2015. As of December 31, 2017, net goodwill reflected $762.0 million of accumulated impairment losses, relating primarily to impairment charges taken in 2008-2010 following the substantial decrease in U.S. housing starts after the financial crisis of 2007-2008. Intangible assets with finite useful lives are amortized using the straight-line method over their estimated useful lives. We evaluate the remaining useful lives of amortizable identifiable intangible assets at each reporting period to determine whether events and circumstances warrant a revision to the remaining periods of amortization. Income Taxes Accounting guidance for income taxes requires that the future realization of deferred tax assets depends on the existence of sufficient taxable income in future periods. Possible sources of taxable income include taxable income in carryback periods, the future reversal of existing taxable temporary differences recorded as a deferred tax liability, tax planning strategies that generate future income or gains in excess of anticipated losses in the carryforward period, and projected future taxable income. If, based upon all available evidence, both positive and negative, it is more likely than not (more than 50 percent likely) such deferred tax assets will not be realized, a valuation allowance is recorded. Significant weight is given to positive and negative evidence that is objectively verifiable. A company’s three year cumulative loss position is significant negative evidence in considering whether deferred tax assets are realizable and the accounting guidance restricts the amount of reliance we can place on projected taxable income to support the recovery of deferred tax assets. In the fourth quarter of 2015 we recorded a $35.5 million tax benefit ($13.5 million of Federal and $22.0 million of State and local net of federal benefit) from the release of the valuation allowance against its U.S. Federal and certain state deferred tax assets due primarily to a return to sustainable profitability in our U.S. operations. The reduction in the valuation allowance in 2015 resulted in a net positive income tax benefit of $5.0 million and a negative (beneficial) effective tax rate of 6.8 percent for the year. In the fourth quarter of 2016 we recorded a $0.8 million tax benefit from the release of the valuation allowance against certain state deferred tax assets (primarily State net operating losses) due primarily to a return to sustainable profitability in our U.S. operations. The reduction in the valuation allowance in 2016 resulted in a net positive income tax benefit of $0.8 million and an effective tax rate of 37.6 percent for the year. This was the Company’s last remaining valuation allowance related to deferred tax assets. Current accounting guidance allows the recognition of only those income tax positions that have a greater than 50 percent likelihood of being sustained upon examination by taxing authorities. We believe that there is an increased potential for volatility in our effective tax rate because this threshold allows changes in the income tax environment and the inherent complexities of income tax law in a substantial number of jurisdictions to affect the computation of the liability for uncertain tax positions to a greater extent. While we believe we have adequately assessed for our uncertain tax positions, amounts asserted by taxing authorities could vary from our assessment of uncertain tax positions. Accordingly, provisions for tax-related matters, including interest and penalties, could be recorded in income tax expense in the period revised assessments are made. 33

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Table of Contents Business Combinations The purchase price for business combinations is allocated to the estimated fair values of acquired tangible and intangible assets, including goodwill, and assumed liabilities, where applicable. Additionally, we recognize customer relationships, trademarks and trade names, and non-competition agreements as identifiable intangible assets. These assets are recorded at fair value as of the transaction date. The fair value of these intangible assets is determined primarily using the income approach and using current industry information. Goodwill is recorded when consideration transferred exceeds the fair value of identifiable assets and liabilities. Measurement-period adjustments are recorded in the period they occur. Contingent consideration is recorded at fair value at the acquisition date. Recently Issued Accounting Pronouncements Recently issued accounting pronouncements and their expected or actual effect on our reported results of operations are addressed inItem 8. Financial Statements and Supplementary Data – Note 1. Summary of Significant Accounting Policies. Off-Balance Sheet Arrangements As of December 31, 2017 and 2016, other than operating leases, letters of credit issued under our revolving credit facility, and performance and license bonds, we had no material off-balance sheet arrangements. Contractual Obligations The following table provides payment obligations related to current contracts at December 31, 2017, in thousands: Payments Due by Period 2018 2019 2020 2021 2022 Thereafter Total Operating leases $ 46,202 $ 34,676 $ 21,947 $ 11,195 $ 4,452 $ 7,123 $ 125,595 Principal repayments of long-term debt 12,500 15,625 18,750 21,875 175,000 — 243,750 Interest payments on long-term debt (a) 6,945 6,534 6,042 5,488 1,247 — 26,256 Standby Letters of Credit and Commitment Fees (b) 978 978 980 980 241 — 4,157 Total $ 66,625 $ 57,813 $ 47,719 $ 39,538 $ 180,940 $ 7,123 $ 399,758 (a) Interest has been calculated using the interest rate on our long-term debt as of December 31, 2017, of 2.85%. (b) Assumes our standby letters of credit remain constant during the term of our New Credit Agreement. 34

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Table of Contents Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RIS K Interest Rate Risk Our New Credit Agreement became effective on May 5, 2017. The New Credit Agreement consists of a senior secured term loan facility in the amount of $250 million, $100 million of additional term loan capacity under a delayed draw feature (which remains available to us until May 5, 2018), and a revolving facility in the amount of $250 million. Interest payable on both the term loan facility and revolving facility is based on a variable interest rate. As a result, we are exposed to market risks related to fluctuations in interest rates on our outstanding indebtedness. As of December 31, 2017, we had $243.8 million outstanding under our term loan facility, and the applicable interest rate as of such date was 2.85 percent. Based on our outstanding borrowings under the New Credit Agreement as of December 31, 2017, a 100 basis point increase in the interest rate would result in a $2.4 million increase in our annualized interest expense. There was no outstanding balance under the revolving facility as of December 31, 2017. 35

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Table of Contents Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA Report of Independent Registered Public Accounting Firm To the Board of Directors and Shareholders of TopBuild Corp. Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheets of TopBuild Corp. and its subsidiaries as of December 31, 2017 and 2016, and the related consolidated statements of operations, changes in equity and cash flows for each of the three years in the period ended December 31, 2017, including the related notes and schedule of valuation and qualifying accounts for each of the three years in the period ended December 31, 2017 appearing on page 68, (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2017 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO. Basis for Opinions The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions. 36

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Table of Contents Definition and Limitations of Internal Control over Financial Reporting A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. /s/PricewaterhouseCoopers LLP Certified Public Accountants Orlando, Florida February 27, 2018 We have served as the Company’s auditor since 2015. 37

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Table of Contents TOPBUILD CORP. CONSOLIDATED BALANCE SHEET S (In thousands except share amounts) As of December 31, December 31, 2017 2016 ASSETS Current assets: Cash and cash equivalents $ 56,521 $ 134,375 Receivables, net of an allowance for doubtful accounts of $3,673 and $3,374 at December 31, 2017, and December 31, 2016, respectively 308,508 252,624 Inventories, net 131,342 116,190 Prepaid expenses and other current assets 15,221 23,364 Total current assets 511,592 526,553 Property and equipment, net 107,121 92,760 Goodwill 1,077,186 1,045,058 Other intangible assets, net 33,243 2,656 Deferred tax assets, net 18,129 19,469 Other assets 2,278 3,623 Total assets $ 1,749,549 $ 1,690,119 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 263,814 $ 241,534 Current portion of long-term debt 12,500 20,000 Accrued liabilities 75,087 64,399 Total current liabilities 351,401 325,933 Long-term debt 229,387 158,800 Deferred tax liabilities, net 132,840 193,715 Long-term portion of insurance reserves 36,160 38,691 Other liabilities 3,242 433 Total liabilities 753,030 717,572 Commitments and contingencies Equity: Preferred stock, $0.01 par value: 10,000,000 shares authorized; 0 shares issued and outstanding at December 31, 2017, and December 31, 2016 — — Common stock, $0.01 par value: 250,000,000 shares authorized; 38,626,378 issued and 35,586,916 outstanding at December 31, 2017, and 38,488,825 shares issued and 37,815,199 outstanding at December 31, 2016 386 385 Treasury stock, 3,039,462 shares at December 31, 2017, and 673,626 shares at December 31, 2016, at cost (141,582) (22,296) Additional paid-in capital 830,600 845,476 Retained earnings 307,115 148,982 Total equity 996,519 972,547 Total liabilities and equity $ 1,749,549 $ 1,690,119 See notes to our consolidated financial statements. 38

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Table of Contents TOPBUILD CORP. CONSOLIDATED STATEMENTS OF OPERATION S (In thousands except per common share amounts) Year Ended December 31, 2017 2016 2015 Net sales $ 1,906,266 $ 1,742,850 $ 1,616,580 Cost of sales 1,445,157 1,342,506 1,258,551 Gross profit 461,109 400,344 358,029 Selling, general, and administrative expense (exclusive of significant legal settlement, shown separately below) 294,245 278,740 274,498 Significant legal settlement 30,000 — — Operating profit 136,864 121,604 83,531 Other income (expense), net: Interest expense (8,019) (5,608) (9,465) Loss on extinguishment of debt (1,086) — — Other, net 281 277 49 Other expense, net (8,824) (5,331) (9,416) Income from continuing operations before income taxes 128,040 116,273 74,115 Income tax benefit (expense) from continuing operations 30,093 (43,667) 5,008 Income from continuing operations 158,133 72,606 79,123 Loss from discontinued operations, net — — (152) Net income $ 158,133 $ 72,606 $ 78,971 Income per common share: Basic: Income from continuing operations $ 4.41 $ 1.93 $ 2.10 Loss from discontinued operations, net — — — Net income $ 4.41 $ 1.93 $ 2.10 Diluted: Income from continuing operations $ 4.32 $ 1.92 $ 2.09 Loss from discontinued operations, net — — — Net income $ 4.32 $ 1.92 $ 2.09 See notes to our consolidated financial statements. 39

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Table of Contents TOPBUILD CORP. CONSOLIDATED STATEMENTS OF CASH FLOW S (In thousands) Year Ended December 31, 2017 2016 2015 Net Cash Provided by (Used in) Operating Activities: Net income $ 158,133 $ 72,606 $ 78,971 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 16,453 12,011 12,108 Share-based compensation 9,889 7,669 4,651 Loss on extinguishment of debt 1,086 — — Loss on sale or abandonment of property and equipment 998 2,737 2,334 Amortization of debt issuance costs 401 343 171 Amortization of contingent consideration 149 — — Provision for bad debt expense 3,231 3,292 4,219 Loss from inventory obsolescence 1,979 1,343 1,879 Non-cash employee benefit policy change — — (9,861) Deferred income taxes, net (59,535) 13,540 (16,556) Changes in certain assets and liabilities: Receivables, net (37,943) (19,953) (19,591) Inventories, net (14,901) 1,370 (13,608) Prepaid expenses and other current assets 8,184 (10,102) (9,054) Accounts payable 17,936 (11,698) 24,008 Accrued liabilities 7,160 3,633 (3,746) Other, net (28) (6) 86 Net cash provided by operating activities 113,192 76,785 56,011 Cash Flows Provided by (Used in) Investing Activities: Purchases of property and equipment (25,308) (14,156) (13,644) Acquisition of businesses (84,090) (3,476) — Proceeds from sale of property and equipment 603 718 805 Other, net 199 113 632 Net cash used in investing activities (108,596) (16,801) (12,207) Cash Flows Provided by (Used in) Financing Activities: Net transfer from Former Parent — 664 72,965 Cash distribution paid to Former Parent — — (200,000) Proceeds from issuance of long-term debt 250,000 — 200,000 Repayment of long-term debt (186,250) (15,000) (5,000) Payment of debt issuance costs (2,150) — (1,715) Proceeds from revolving credit facility 225,000 — — Repayments of revolving credit facility (225,000) — — Taxes withheld and paid on employees' equity awards (4,764) (1,825) (171) Repurchase of shares of common stock (139,286) (22,296) — Net cash (used in) provided by financing activities (82,450) (38,457) 66,079 Cash and Cash Equivalents (Decrease) increase for the period (77,854) 21,527 109,883 Beginning of year 134,375 112,848 2,965 End of year $ 56,521 $ 134,375 $ 112,848 Supplemental disclosure of cash paid for: Cash interest on long-term debt $ 6,423 $ 4,130 $ 2,233 Income taxes 22,580 39,508 20,992 Supplemental disclosure of noncash investing activities: Accruals for property and equipment $ 1,123 $ 387 $ 583 See notes to our consolidated financial statements. 40

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Table of Contents TOPBUILD CORP. CONSOLIDATED STATEMENTS OF CHANGES IN EQUIT Y (In thousands) Common Treasury Additional Former Stock Stock Paid-in Retained Parent ($0.01 par value) at cost Capital Earnings Investment Equity Balance at December 31, 2014 $ — $ — $ — $ — $ 952,291 $ 952,291 Net income — — — 76,376 2,595 78,971 Separation-related adjustments — — — — (118,356) (118,356) Reclassification of Former Parent investment in connection with the Separation — — 836,530 — (836,530) — Issuance of common stock at Separation 377 — (377) — — — Share-based compensation — — 2,823 — — 2,823 Balance at December 31, 2015 $ 377 $ — $ 838,976 $ 76,376 $ — $ 915,729 Net income — — — 72,606 — 72,606 Separation-related adjustments — — 664 — — 664 Share-based compensation — — 7,669 — — 7,669 Issuance of 756,590 restricted share awards under long-term equity incentive plan 8 — (8) — — — Repurchase of 673,626 shares of common stock pursuant to Share Repurchase Program — (22,296) — — — (22,296) 66,196 shares of common stock withheld to pay taxes on employees' equity awards — — (1,825) — — (1,825) Balance at December 31, 2016 $ 385 $ (22,296) $ 845,476 $ 148,982 $ — $ 972,547 Net income — — — 158,133 — 158,133 Share-based compensation — — 9,889 — — 9,889 Issuance of 158,900 restricted share awards under long-term equity incentive plan 1 — (1) — — — Repurchase of 858,393 shares of common stock pursuant to Share Repurchase Program — (39,286) — — — (39,286) Repurchase of 1,507,443 shares of common stock pursuant to Accelerated Share Repurchase Program — (80,000) (20,000) — — (100,000) 123,101 shares of common stock withheld to pay taxes on employees' equity awards — — (4,764) — — (4,764) Balance at December 31, 2017 $ 386 $ (141,582) $ 830,600 $ 307,115 $ — $ 996,519 See notes to our consolidated financial statements. 41

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation. On the Effective Date, Masco completed the Separation of its Services Business from its other businesses and TopBuild became an independent public company which holds, through its consolidated subsidiaries, the assets and liabilities of the Services Business. The Separation was achieved through the distribution of 100 percent of the outstanding capital stock of TopBuild to holders of Masco common stock. TopBuild is a Delaware corporation and trades on the NYSE under the symbol “BLD.” Prior to the Separation, the consolidated financial statements of TopBuild were prepared on a stand-alone basis and reflected the historical results of operations, financial position, and cash flows of the Services Business, including an allocable portion of corporate costs. We report our business in two segments: Installation and Distribution. Our Installation segment primarily installs insulation and other building products. Our Distribution segment primarily sells and distributes insulation and other building products. Our segments are based on our operating units, for which financial information is regularly evaluated by our corporate operating executives. Financial Statement Presentation. The consolidated financial statements have been developed in conformity with GAAP. Our financial statements for the periods prior to the Separation have been derived from the financial statements and accounting records of Masco using the historical results of operations and historical basis of assets and liabilities of the Services Business, and reflect Masco’s net investment in the Services Business. All intercompany transactions between the TopBuild entities have been eliminated. Transactions between TopBuild and Masco prior to the Separation, with the exception of purchase transactions, are reflected in the Consolidated Statements of Changes in Equity as “Former Parent Investment” and in the Consolidated Statements of Cash Flows as a financing activity in “Net transfer from (to) Former Parent.” The accompanying consolidated financial statements for the periods prior to the Separation include allocations of general corporate expenses that were incurred by Masco for functions such as corporate human resources, finance, and legal, including salaries, benefits, and other related costs. These general corporate expenses were allocated to TopBuild on the basis of sales. Total allocated general corporate costs were $13.6 million for the year ended December 31, 2015. These costs were included in selling, general, and administrative expense. Prior to the Separation, Masco incurred certain operating expenses on behalf of the Services Business which were allocated to TopBuild based on direct benefit or usage. These allocated operating expenses were $5.6 million for the year ended December 31, 2015. These costs were included in selling, general, and administrative expense. An estimate of these operating expenses was allocated to each of TopBuild’s reporting segments, based on a percentage of sales. For the periods prior to the Separation, these consolidated financial statements may not reflect the actual expenses that would have been incurred had we operated as a stand-alone company and may not reflect the consolidated results of operations, financial position, and cash flows had we operated as a stand-alone company. Actual costs that would have been incurred had we operated as a stand- alone company prior to the Separation would depend on multiple factors including organizational structure and strategic decisions made in various areas, including information technology and infrastructure. During the first quarter of 2015, we identified an error related primarily to the misallocation of a favorable legal settlement to general corporate expenses of TopBuild in the fourth quarter of 2014. The impact of the error understated the allocation of corporate expenses reported as selling, general, and administrative expense and overstated operating profit by $1.9 million. The error was not considered material to the previously reported 2014 financial statements. The Company recorded the correction of the error by an out-of-period adjustment in the first quarter of 2015 which is therefore reflected in the twelve months ended December 31, 2015, Consolidated Statements of Operations and Consolidated Statements of Cash Flows. 42

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Use of Estimates and Assumptions in the Preparation of Financial Statements. The preparation of our consolidated financial statements in conformity with GAAP requires us to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of any contingent assets and liabilities, at the date of the financial statements, and the reported amounts of sales and expenses during the reporting period. Actual results may differ from these estimates and assumptions. Revenue Recognition. We recognize revenue for our Installation segment using the percentage of completion method of accounting with respect to each particular order within a given customer’s contract, based on the amount of material installed at that customer’s location and the associated labor costs, as compared to the total expected cost for the particular order. Each contract contains one or more individual orders, which are based on services delivered. The amount of revenue recognized for our Installation segment that had not been billed as of December 31, 2017 and 2016, was $37.1 million and $28.9 million, respectively. Revenue from our Distribution segment is recognized when title to products and risk of loss transfers to our customers. At time of sale we record estimated reductions to revenue for customer programs and incentive offerings, including special pricing and other volume-based incentives. Income Taxes. We account for income taxes using the asset and liability method, which requires recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between tax basis and financial reporting basis of our assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates in the respective jurisdictions in which we operate. Valuation allowances are established against deferred tax assets when it is more likely than not that the realization of those deferred tax assets will not occur. In evaluating our ability to recover our deferred tax assets within the jurisdiction from which they arise, we consider all available positive and negative evidence. If, based upon all available evidence, both positive and negative, it is more likely than not (more than 50 percent likely) such deferred tax assets will not be realized, a valuation allowance is recorded. Significant weight is given to positive and negative evidence that is objectively verifiable. A company’s three year cumulative loss position is significant negative evidence in considering whether deferred tax assets are realizable and the accounting guidance restricts the amount of reliance we can place on projected taxable income to support the recovery of the deferred tax assets. Interest and penalties on our uncertain tax positions, if recorded, are reported in income tax expense. Cash and Cash Equivalents. We consider our highly liquid investments with a maturity of three months or less at the time of purchase to be cash and cash equivalents. Receivables, net. We do business with a significant number of customers, principally homebuilders. We monitor our exposure for credit losses on our customer receivable balances and the credit worthiness of our customers on an on‑going basis and record related allowances for doubtful accounts. Allowances are estimated based upon specific customer balances where a risk of default has been identified, and also include a provision for non‑customer specific defaults based upon historical collection, return, and write‑off activity. During downturns in our markets, declines in the financial condition and creditworthiness of customers impact the credit risk of the receivables involved and we have incurred additional bad debt expense related to customer defaults. Receivables, net are presented net of certain allowances, including allowances for doubtful accounts. Inventories, net. Inventories, net consist primarily of insulation, rain gutters, fireproofing and firestopping products, garage doors, fireplaces, shower enclosures, closet shelving, accessories, and other products. We value inventory at the lower of cost or net realizable value, where cost is determined by the first in‑first out cost method. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable cost of completion, disposal, and transportation. Inventory value is evaluated at each balance sheet date to ensure that it is carried at the lower of cost or net realizable value. Inventory provisions are recorded to reduce inventory to the lower of cost or net realizable value for obsolete or slow moving inventory based on assumptions about future demand and marketability of products, the impact of new product introductions, inventory levels and turns, product spoilage, and specific identification of items such as product discontinuance, engineering/material changes, or regulatory-related changes. As of December 31, 2017 and 2016, all inventory consisted of finished goods. 43

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Property and Equipment, net. Property and equipment, net, including significant betterments to existing facilities, are recorded at cost. Upon retirement or disposal, the cost and accumulated depreciation are removed from the accounts and any gain or loss is included in the Consolidated Statements of Operations. Maintenance and repair costs are charged against earnings as incurred. Gains and losses on the disposal of equipment are included in selling, general, and administrative expense. We review our property and equipment as an event occurs or circumstances change that would more likely than not reduce the fair value of the property and equipment below the carrying amount. If the carrying amount is not recoverable from its undiscounted cash flows, we would recognize an impairment loss for the difference between the carrying amount and the current fair value. Further, we evaluate the remaining useful lives of property and equipment at each reporting period to determine whether events and circumstances warrant a revision to the remaining depreciation periods. Depreciation. Depreciation expense is computed principally using the straight‑line method over the estimated useful lives of the assets. Estimated useful lives are generally as follows: Asset Class Estimated Useful Life Buildings and land improvements 20 – 40 years Software 3 – 6 years Company vehicles 3 – 8 years Equipment 6 – 10 years Fair Value. The fair value measurement standard defines fair value as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date (referred to as an “exit price”). A fair value hierarchy is established that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted market prices in active markets for identical assets and liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are: Level 1: Quoted prices in active markets for identical assets or liabilities. Level 2: Observable inputs other than Level 1 prices, such as quoted market prices for similar assets or liabilities or other inputs that are observable or can be corroborated by market data. Level 3: Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. Goodwill and Other Intangible Assets. We perform our annual impairment testing of goodwill in the fourth quarter of each year, or as events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. We have defined our reporting units and completed the impairment testing of goodwill at the operating segment level. Our operating segments are reporting units that engage in business activities for which discrete financial information, including long-range forecasts, are available. When assessing goodwill for impairment, we have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, we determine it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then we perform a two-step impairment test. If we conclude otherwise, then no further action is taken. We also have the option to bypass the qualitative assessment and only perform a quantitative assessment, which is the first step of the two-step impairment test. In the two-step impairment test, we compare the fair value of the reporting units to the carrying value of the reporting units for goodwill impairment testing. Fair value for our reporting units is determined using a discounted cash flow method, which includes significant unobservable inputs (Level 3 inputs). 44

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Determining market values using a discounted cash flow method requires us to make significant estimates and assumptions, including long term projections of cash flows, market conditions, and appropriate discount rates. Our judgments are based upon historical experience, current market trends, consultations with external valuation specialists and other information. In estimating future cash flows, we rely on internally generated long-range forecasts for sales and operating profits, including capital expenditures, and generally utilize a one to three percent long term assumed annual growth rate of cash flows for periods after the long-range forecast. An impairment loss is recognized to the extent that a reporting unit’s recorded goodwill exceeds the implied fair value of goodwill. Intangible assets with finite useful lives are amortized using the straight‑line method over their estimated useful lives. We evaluate the remaining useful lives of amortizable intangible assets at each reporting period to determine whether events and circumstances warrant a revision to the remaining periods of amortization. For additional information, see Note 4. Goodwill and Other Intangible Assets. Insurance Reserves. We use a combination of high deductible insurance and matching deductible insurance for a number of risks including, but not limited to, workers’ compensation, general, vehicle, and property liabilities. Our workers’ compensation insurance is primarily a high‑deductible insurance program and our primary general liability insurance is a matching deductible program. We are insured for covered claims above the deductibles and retentions. The liabilities represent our best estimate of our costs, using generally accepted actuarial reserving methods, of the ultimate obligations for reported claims plus those incurred but not reported claims through December 31, 2017 and 2016. The accruals are adjusted as new information develops or circumstances change that would affect the estimated liability. We also record an insurance receivable for claims that exceeded the stop loss limit included in other assets on our Consolidated Balance Sheets which offsets an equal liability included within the reserve amount recorded in other liabilities on our Consolidated Balance Sheet. At December 31, 2017 and 2016, the amount of this receivable and liability was $2.0 million and $3.2 million, respectively. Advertising. Advertising costs are expensed as incurred. Advertising expense, net of manufacturers support, was approximately $1.1 million, $1.1 million, and $1.5 million for the years ended December 31, 2017, 2016, and 2015, respectively, and is included in selling, general, and administrative expense. Share‑based Compensation. Our share-based compensation program currently consists of RSAs and Options. Share-based compensation expense is reported in selling, general, and administrative expense. We do not capitalize any compensation cost related to share-based compensation awards. The income tax benefits and deficiencies associated with share-based awards are reported as a component of income tax expense. Excess tax benefits and deficiencies are included in cash provided by (used in) operating activities while shares withheld for tax-withholding are reported in financing activities under the caption “Taxes withheld and paid on employees’ equity awards” in our Consolidated 45

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Statements of Cash Flows. Award forfeitures are accounted for in the period they occur. The following table details our award types and accounting policies: Fair Value Expense Expense Award Type: Determination Vesting Recognition‡ Measurement Restricted Share Awards Service Condition Closing stock price Ratably; Straight-line Fair value at grant date on date of grant 3 or 5 years Performance Condition Closing stock price Cliff; Straight-line; Evaluated quarterly; on date of grant 3 years Adjusted based on meeting 0 - 200% of fair value at grant or exceeding performance date depending on performance targets Market Condition Monte-Carlo Cliff; Straight-line; Fair value at grant date Simulation 3 years Recognized even if condition is not met Stock Options† Black-Scholes Ratably; Straight-line Fair value at grant date Options Pricing 3 or 5 years Model †Stock options expire no later than 10 years after the grant date. ‡Expense is reversed if award is forfeited prior to vesting. Debt Issuance Costs. Debt issuance costs are amortized as interest expense over the life of the respective debt, which approximates the effective interest rate method. Leases. Leases where the lessor retains substantially all the risks and benefits of ownership of the asset are classified as operating leases. Operating lease payments are recognized as an expense in the Consolidated Statements of Operations on a straight-line basis over the lease term, including future option periods the Company reasonably expects to exercise, whereby an equal amount of rent expense is attributed to each period during the term of the lease, regardless of when actual payments are made. This generally results in rent expense in excess of cash payments during the early years of a lease and rent expense less than cash payments in later years. The difference between rent expense recognized and actual rental payments is recorded as deferred rent and included in other liabilities. Lease termination costs are accrued over the life of the lease based on historical experience. Leasehold improvements are amortized over the lesser of the expected lease term, including cancelable option periods, or the estimated useful lives of the related assets using the straight-line method. Business Combinations. The purchase price for business combinations is allocated to the estimated fair values of acquired tangible and intangible assets, including goodwill, and assumed liabilities, where applicable. Additionally, we recognize customer relationships, trademarks and trade names, and non-competition agreements as identifiable intangible assets. These assets are recorded at fair value as of the transaction date. The fair value of these intangible assets is determined primarily using the income approach and using current industry information. Goodwill is recorded when consideration transferred exceeds the fair value of identifiable assets and liabilities. Measurement-period adjustments are recorded in the period they occur. Contingent consideration is recorded at fair value at the acquisition date. 46

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Recently Adopted Accounting Pronouncements: In July 2015, the FASB issued ASU 2015-11 “Simplifying the Measurement of Inventory.” Under this guidance, inventory should be measured at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. We adopted this guidance in the beginning of the first quarter of 2017. The adoption of this amendment did not have a material impact on our financial position or results of operations. Recently Issued Accounting Pronouncements Not Yet Adopted: In May 2014, the FASB issued a new standard for revenue recognition, ASC 606. Subsequent to issuing ASC 606, the FASB issued a number of updates and technical improvements which do not change the core principles of the guidance. The purpose of ASC 606 is to provide a single, comprehensive revenue recognition model for all contracts with customers to improve comparability across industries. ASC 606 is effective for us beginning January 1, 2018, and allows for full retrospective or modified retrospective methods of adoption; early adoption is permitted. In determining the applicability of ASC 606, we considered the general nature of our orders is short-term, based on a single deliverable, and not accounted for under industry-specific guidance. We reviewed our revenue streams at both our Installation and Distribution segments. Our current assessment indicates that the adoption of the standard will likely not have a material impact on the amount or timing of our revenue recognition process. Additional disclosures related to our revenues, contract balances, and judgments affecting recognition will be required. We will apply the modified retrospective approach to transition to the new guidance, which allows us to recognize the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings. In February 2016, the FASB issued ASU 2016-02, “Leases.” This standard requires a lessee to recognize most leases on its balance sheet. Companies are required to use a modified retrospective transition method for all existing leases. This standard is effective for annual periods beginning after December 15, 2018, and interim periods therein. Early adoption is permitted. We have not yet selected an adoption date and we are currently evaluating the effect on our financial position and results of operations. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses”. This guidance introduces a current expected credit loss (“CECL”) model for the recognition of impairment losses on financial assets, including trade receivables. The CECL model replaces current GAAP’s incurred loss model. Under CECL, companies will record an allowance through current earnings for the expected credit loss for the life of the financial asset upon initial recognition of the financial asset. This update is effective for us at the beginning of 2020 with early adoption permitted at the beginning of 2019. We have not yet selected an adoption date and we are currently evaluating the effect on our financial position and results of operations. In January 2017, the FASB issued ASU 2017-01, “Clarifying the Definition of a Business.” The new standard narrows the definition of a business and provides a framework for evaluation. This update is effective for us beginning January 1, 2018, and will be applied prospectively. We do not expect this update to have a material impact on our financial position or results of operations. In January 2017 the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment.” The new standard simplifies the subsequent measurement of goodwill by eliminating the second step of the goodwill impairment test. This update is effective for us beginning January 1, 2020. Early adoption is permitted and the new standard will be applied on a prospective basis. We have not yet selected an adoption date and we are currently evaluating the effect on our financial position and results of operations. 47

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 2. RELATED PARTY TRANSACTIONS Prior to the Separation, interest was charged each month as an adjustment to Former Parent’s investment in TopBuild. Our Consolidated Statements of Operations reflect an interest expense charge of $6.3 million for the year ended December 31, 2015. The charge was based on the monthly average intercompany balance payable to Masco based on a 12-month LIBOR plus two percent. Transactions between us and Masco, with the exception of purchase transactions, are reflected in our Consolidated Statements of Changes in Equity as “Former Parent Investment” and in our Consolidated Statements of Cash Flows as a financing activity in “Net transfer from Former Parent.” TopBuild related party purchases from Masco businesses aggregated $2.6 million for the year ended December 31, 2015, and have been included in cost of sales. Subsequent to the Separation, any transactions with Masco are no longer considered related party and are reflected in our Consolidated Statements of Operations and included in the operating cash flow section of our Consolidated Statements of Cash Flows. We lease certain operating facilities from certain related parties, primarily former owners (and in certain cases, current management personnel) of companies acquired. These related party leases are immaterial to our Consolidated Statements of Operations. 3. PROPERTY & EQUIPMENT The following table sets forth our property and equipment by class as of December 31, 2017 and 2016, in thousands: As of December 31, 2017 2016 Land and improvements $ 7,846 $ 7,907 Buildings 40,515 38,865 Equipment 96,580 88,472 Computer hardware and software 125,984 123,725 Company vehicles 41,298 34,668 312,223 293,637 Less: Accumulated depreciation (205,102) (200,877) Total property and equipment, net $ 107,121 $ 92,760 Depreciation expense was $13.5 million, $11.2 million, and $11.1 million for the years ended December 31, 2017, 2016, and 2015, respectively. 48

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 4. GOODWILL AND OTHER INTANGIBLES Changes in the carrying amount of goodwill for the years ended December 31, 2017 and 2016, by segment, were as follows, in thousands: Gross Goodwill Gross Goodwill Accumulated Net Goodwill at at Impairment at December 31, 2016 Additions December 31, 2017 Losses December 31, 2017 Goodwill, by segment: Installation $ 1,390,792 $ 32,128 $ 1,422,920 $ (762,021) $ 660,899 Distribution 416,287 — 416,287 — 416,287 Total goodwill $ 1,807,079 $ 32,128 $ 1,839,207 $ (762,021) $ 1,077,186 Gross Goodwill Gross Goodwill Accumulated Net Goodwill at at Impairment at December 31, 2015 Additions December 31, 2016 Losses December 31, 2016 Goodwill, by segment: Installation $ 1,389,775 $ 1,017 $ 1,390,792 $ (762,021) $ 628,771 Distribution 416,287 — 416,287 — 416,287 Total goodwill $ 1,806,062 $ 1,017 $ 1,807,079 $ (762,021) $ 1,045,058 In the fourth quarters of 2017 and 2016, we completed our annual impairment testing of goodwill. The impairment tests in both 2017 and 2016 indicated there was no impairment of goodwill. Other intangible assets, net includes customer relationships, non-compete agreements, and trademarks. The following table sets forth our other intangible assets and associated amortization expense, in thousands: For the years ended December 31, 2017 2016 2015 Gross definite-lived intangible assets $ 54,872 $ 20,932 Accumulated amortization (21,629) (18,683) Net definite-lived intangible assets 33,243 2,249 Indefinite-lived intangible assets not subject to amortization — 407 Other intangible assets, net $ 33,243 $ 2,656 Amortization expense $ 2,994 $ 795 $ 1,026 The following table sets forth the amortization expense related to the definite-lived intangible assets during each of the next five years, in thousands: Amortization Expense 2018 $ 4,056 2019 4,056 2020 4,006 2021 3,892 2022 3,814 5. LONG-TERM DEBT On May 5, 2017, we and the Guarantors entered into the New Credit Agreement with the Lenders. All obligations under the New Credit Agreement are guaranteed by the Guarantors, and all obligations under the New Credit Agreement, including the guarantees of those obligations, are secured by substantially all of the assets of us and the Guarantors. 49

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Table of Contents TOPBUILD CORP. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Interest payable on borrowings under the New Credit Agreement is based on an applicable margin rate plus, at our option, either: · A base rate determined by reference to the highest of either (i) the federal funds rate plus 0.50 percent, (ii) Bank of America’s “prime rate,” or (iii) the LIBOR rate for U.S. dollar deposits with a term of one month, plus 1.00 percent; or · A LIBOR rate determined by reference to the costs of funds for deposits in U.S. dollars for the interest period relevant to such borrowings. The applicable margin rate is determined based on our Total Leverage Ratio. In the case of base rate borrowings, the applicable margin rate ranges from 0.00 percent to 1.50 percent and in the case of LIBOR rate borrowings, the applicable margin ranges from 1.00 percent to 2.50 percent. We are required to pay commitment fees to the Lenders in respect of any unutilized commitments. The commitment fees range from 0.15 percent to 0.275 percent per annum, depending on our Total Leverage Ratio. We must also pay customary fees on outstanding letters of credit. We used a portion of the proceeds from the term loan under the New Credit Agreement to repay all amounts outstanding under the Old Credit Agreement. The remaining proceeds were used to fund our 2017 Repurchase program, to make additional acquisitions, and for general operating purposes. Upon executing the New Credit Agreement, we terminated the Old Credit Agreement and all associated agreements and instruments. In conjunction with the New Credit Agreement, we recognized a loss on extinguishment of debt of $1.1 million for the twelve months ended December 31, 2017, which is reflected under the caption, “Loss on extinguishment of debt” in our Consolidated Statements of Operations. The following table outlines the key terms of our New Credit Agreement, dollars in thousands: New Credit Agreement Senior secured term loan facility (original borrowing) (a) $ 250,000 Additional term loan capacity under delayed draw feature (b) $ 100,000 Additional term loan and/or revolver capacity available under incremental facility (c) $ 200,000 Revolving Facility $ 250,000 Sublimit for issuance of letters of credit under Revolving Facility (d) $ 100,000 Sublimit for swingline loans under Revolving Facility (d) $ 20,000 Interest rate as of December 31, 2017 2.85 % Scheduled maturity date 5/05/2022 (a) The New Credit Agreement provides for a term loan limit of $350.0 million; $250.0 million was drawn on May 5, 2017 . (b) We can access $100.0 million through a delayed draw term loan on the New Credit Agreement until May 5, 2018. We have not determined the timing or amounts of our delayed draws, if any. (c) Additional borrowing capacity is available under the incremental facility, subject to certain terms and conditions (including existing or new lenders providing commitments in respect of such additional borrowing capacity). (d) Use of the sublimits for the issuance of letters of credit and swingline loans reduces the availability under the Revolving Facility. Borrowings under the New Credit Agreement are prepayable at the Company’s option without premium or penalty. The Company is required to make prepayments with the net cash proceeds of certain asset sales and certain extraordinary receipts. 50

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