Notes to Condensed Consolidated Financial Statements

(Unaudited)

1. Company Overview

Beacon Roofing Supply, Inc. (the “Company”) was incorporated in the state of Delaware on August 22, 1997 and is the largest publicly traded distributor of residential and non-residential roofing materials and complementary building products in the United States and Canada.

On January 2, 2018, the Company completed the acquisition of all the outstanding capital stock of Allied Building Products Corp. (“Allied”), a New Jersey corporation, for $2.625 billion, subject to certain working capital and other adjustments. Allied engages in the distribution of roofing materials, drywall, ceiling tile, and related accessories in the United States and was a wholly-owned subsidiary of Oldcastle Distribution, Inc. (see Note 3 for further discussion).

The Company operates its business under regional and local trade names and, as of March 31, 2019, the Company serviced customers in all 50 states within the United States and 6 provinces in Canada. The Company’s material subsidiaries are Beacon Sales Acquisition, Inc. and Beacon Roofing Supply Canada Company.

2. Summary of Significant Accounting Policies

Basis of Presentation

The Company prepared the condensed consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and the requirements of the Securities and Exchange Commission (“SEC”). As permitted under those rules, certain footnotes or other financial information have been condensed or omitted. Certain prior period amounts have been reclassified to conform to current period presentation. The balance sheet as of March 31, 2018 has been presented for a better understanding of the impact of seasonal fluctuations on the Company’s financial condition.

In management’s opinion, the financial statements include all normal and recurring adjustments that are considered necessary for the fair presentation of the Company’s financial position and operating results. The results for the three and six months ended March 31, 2019 are not necessarily indicative of the results to be expected for the twelve months ending September 30, 2019 (“fiscal year 2019” or “2019”).

The three-month periods ended March 31, 2019 and 2018 had 63 and 64 business days, respectively, and the six-month periods ended March 31, 2019 and 2018 each had 125 business days .

These interim Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto contained in the Company’s fiscal year 2018 (“2018”) Annual Report on Form 10-K for the year ended September 30, 2018.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. Significant items subject to such estimates include accounts receivable, inventories, purchase price allocations, goodwill and intangibles, and income taxes. Actual amounts could differ from those estimates.

Recent Accounting Pronouncements—Adopted

In May 2014, the FASB issued ASU 2014-09, “ Revenue from Contracts with Customers .” This guidance requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers and replaces most previously issued revenue recognition guidance. The new standard is effective for public business entities for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2017. The standard permits the use of either the full retrospective or modified retrospective adoption methods. The Company elected the modified retrospective method and adopted the standard as of October 1, 2018 utilizing the portfolio practical expedient. The adoption of this guidance did not impact the Company’s retained earnings and did not have a material impact on the Company’s net sales recognition practices, income from operations, or net income per share amounts. The adoption of this guidance did result in certain balance sheet reclassifications to record estimated customer returns, specifically the recognition of a current liability for the gross amount of estimated returns and a current asset for the value of the related products. These reclassifications did not have a material impact on the Company’s consolidated balance sheet as of March 31, 2019. In addition, the adoption of this guidance resulted in additional quantitative

8

disclosures to disaggregate net sales balances by product line and geog raphy. See Note 4 to the Consolidated Financial Statements for further discussion .

In January 2017, the FASB issued ASU 2017-01, “ Business Combinations: Clarifying the Definition of a Business.” This guidance is intended to assist entities when evaluating when a set of transferred assets and activities constitutes a business. This new standard is effective for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2017. The Company adopted the standard as of October 1, 2018 and the standard did not have a material impact on the Company’s financial statement and related disclosures.

In May 2017, the FASB issued ASU 2017-09, “Scope of Modification Accounting.” This guidance is intended to provide clarity and reduce both diversity in practice and cost and complexity when applying the guidance in Compensation – Stock Compensation, to a change to the terms or conditions of a share-based payment award. This new standard is effective for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2017. The Company adopted the standard as of October 1, 2018 and the standard did not have a material impact on the Company’s financial statement and related disclosures.

Recent Accounting Pronouncements—Not Yet Adopted

In February 2016, the FASB issued ASU 2016-02, “ Leases .” This guidance will replace most existing accounting for lease guidance when it becomes effective. This new standard is effective using the modified retrospective approach for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2018, and early adoption is permitted. In July 2018, the FASB amended the new lease standard which, among other changes, allows a company to elect to adopt ASU 2016-02 using a transition option whereby a cumulative effect adjustment is recorded to the opening balance of its retained earnings on the adoption date. The guidance will require the Company to record a right of use asset and a lease liability for most of the Company’s leases, including those currently treated as operating leases. The Company will adopt the standard as of October 1, 2019 and will use the practical expedients outlined in the transition guidance. The scope of the overall impact on the Company’s financial statements and related disclosures is still being quantified.

In June 2016, the FASB issued ASU 2016-13, “ Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments.” This guidance is intended to introduce a revised approach to the recognition and measurement of credit losses, emphasizing an updated model based on expected losses rather than incurred losses. This new standard is effective for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2019, and early adoption is permitted. The Company is currently evaluating the impact that this guidance may have on its financial statements and related disclosures.

In January 2017, the FASB issued ASU 2017-04, “ Simplifying the Accounting for Goodwill Impairment.” This guidance is intended to introduce a simplified approach to measurement of goodwill impairment, eliminating the need for a hypothetical purchase price allocation and instead measuring impairment by the amount a reporting unit’s carrying value exceeds its fair value. This new standard is effective for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2019, and early adoption is permitted. The Company does not expect the adoption of this new guidance to have a material impact on its financial statements and related disclosures.

In February 2018, the FASB issued ASU 2018-02, “Income Statement – Reporting Comprehensive Income.” This guidance is intended to address the accounting treatment for the tax effects on items within accumulated other comprehensive income as a result of the adoption of the Tax Cuts and Jobs Act of 2017. This new standard is effective for annual reporting periods, and interim reporting periods contained therein, beginning after December 15, 2018, and early adoption is permitted. The Company does not expect the adoption of this new guidance to have a material impact on its financial statements and related disclosures.

3. Acquisitions

Allied Building Products Corp.

On January 2, 2018 (the “Closing Date”), the Company completed its acquisition of all the outstanding capital stock of Allied (the “Allied Acquisition”), pursuant to a certain stock purchase agreement dated August 24, 2017 (the “Stock Purchase Agreement”), among the Company, Oldcastle, Inc., as parent, and Oldcastle Distribution, Inc., as seller, for approximately $2.625 billion in cash, subject to a working capital and certain other adjustments as set forth in the Stock Purchase Agreement (the “Purchase Price”). As of March 31, 2019, the adjusted Purchase Price for Allied was $2.88 billion, including increases of (i) $164.0 million related to the impact of the Section 338(h)(10) election under the current U.S. tax code and (ii) $88.1 million from a recorded net working capital adjustment.

9

In connection with the Allied Acquisition, on the C losing D ate the Company entered into (i) a new term loan agreement with Citibank, N.A., providing for a term loan B facility with an initial commitment of $970.0 million and (ii) an amended and restated cr edit agreement with Wells Fargo Bank, N.A., providing for a senior secured asset-based revolving credit facility with an initial commitment of $1.30 billion. Base borrowing rates on these facilities are at LIBOR plus 1.25% and LIBOR plus 2.25%, respectivel y.

In connection with the Allied Acquisition, on the Closing Date, the Company completed the sale of 400,000 shares of Series A Cumulative Convertible Participating Preferred Stock, par value $0.01 per share (the “Preferred Stock”), with an aggregate liquidation preference of $400.0 million, at a purchase price of $1,000 per share, to CD&R Boulder Holdings, L.P., pursuant to a certain investment agreement, dated as of August 24, 2017, with CD&R Boulder Holdings, L.P. and Clayton, Dubilier & Rice Fund IX, L.P. (solely for the purpose of limited provisions therein) (the “Convertible Preferred Stock Purchase”). The $400.0 million in proceeds from the Convertible Preferred Stock Purchase were used to finance, in part, the Purchase Price. The Preferred Stock is convertible perpetual participating preferred stock of the Company, and conversion of the Preferred Stock into $0.01 par value shares of the Company’s common stock will be at a conversion price of $41.26 per share. The Preferred Stock accumulates dividends at a rate of 6.0% per annum (payable in cash or in-kind, subject to certain conditions). The Preferred Stock is not mandatorily redeemable; therefore, it is classified as mezzanine equity on the Company’s consolidated balance sheets and has a balance of $399.2 million (the $400.0 million proceeds received on the Closing Date, net of $0.8 million of unamortized issuance costs) as of March 31, 2019.

Allied’s results of operations have been included with Company’s consolidated results beginning January 2, 2018. Allied distributed products in 208 locations across 31 states as of the date of the close.

The Allied Acquisition has been accounted for as a business combination in accordance with the requirements of ASC 805, “ Business Combinations .” The acquisition price has been allocated among assets acquired and liabilities assumed at fair value based on information currently available, with the excess recorded as goodwill. The goodwill recognized is attributable primarily to expected synergies from the Allied assembled workforce operating the branches as part of a larger network and the value stemming from the addition of both new customers and an established new line of business (interiors). As of March 31, 2019, the Company had finalized the purchase accounting entries for the Allied Acquisition, detailed as follows (in thousands):

The purchase accounting entries above include the impact of the Section 338(h)(10) election under the current U.S. tax code. The Company made this election on October 15, 2018 and has reflected the $164.0 million impact of this election in the purchase price and its fiscal year 2018 tax provision accordingly. The Company determined that $1.14 billion of goodwill related to the acquisition of Allied is deductible for tax purposes as of March 31, 2019.

The Company’s goodwill and indefinite-lived trade name are tested for impairment annually, and all acquired goodwill and intangible assets are subject to review for impairment should future indicators of impairment develop. There were no material contingencies assumed as part of the Allied Acquisition.

Additional Acquisitions – Fiscal Year 2018

During fiscal year 2018, the Company acquired 7 branches from the following acquisitions:

10

The Company has recorded purchase accounting entries on a preliminary basis for these transactions that recognized the acquired assets and liabilities at their estimated fair values as of the respective acquisition dates. These transactions resulted in goodwill of $7.6 million ($7.2 million of which is deductible for tax purposes as of March 31, 2019) and $11.4 million in intangible assets .

For those acquisitions where the acquisition accounting entries have yet to be finalized, the Company’s allocation of the purchase price is subject to change on receipt of additional information, including, but not limited to, the finalization of asset valuations (intangible and fixed) and income tax accounting, as well as the Company’s continued review of the assumed liabilities that may result in the recognition of changes to the carrying amounts on the opening balance sheet and a related adjustment to goodwill.

4. Net Sales

The Company records net sales when performance obligations with our customer are satisfied. A performance obligation is a promise to transfer a distinct good to the customer and is the unit of account. The transaction price is allocated to each distinct performance obligation and recognized as net sales when, or as, the performance obligation is satisfied. All contracts have a single performance obligation as the promise to transfer the individual good is not separately identifiable from other promises and is, therefore, not distinct. Performance obligations are satisfied at a point in time and net sales are recognized when the customer accepts the delivery of a product or takes possession of a product with rights and rewards of ownership.

The Company enters into agreements with customers to offer rebates, generally based on achievement of specified sales levels and various marketing allowances that are common industry practice. Reductions to net sales for customer programs and incentive offerings, including promotions and other volume-based incentives, are estimated using the most likely amount method and recorded in the period in which the sale occurs. Provisions for early payment discounts are accrued in the same period in which the sale occurs. The Company does not have any material payment terms as payment is received shortly after the transfer of control of the products to the customer. Commissions to internal sales teams are paid to obtain contracts. As these contracts are less than one year, these costs are expensed as incurred.

The Company includes shipping and handling costs billed to customers in net sales. Related costs are accounted for as fulfillment activities and are recognized as cost of products sold when control of the products transfers to the customer.

The following table presents the Company’s net sales by product line and geography for the three and six months ended March 31, 2019 (in thousands):

5. Net Income (Loss) Per Share

Basic net income (loss) per share is calculated by dividing net income (loss) attributable to common shareholders by the weighted-average number of common shares outstanding during the period, without consideration for common share equivalents or the conversion of Preferred Stock. Common share equivalents consist of the incremental common shares issuable upon the exercise of stock options and vesting of restricted stock unit awards. Diluted net income (loss) per common share is calculated by dividing net income (loss) attributable to common shareholders by the fully diluted weighted-average number of common shares outstanding during the period.

Holders of Preferred Stock participate in dividends on an as-converted basis when declared on common shares. As a result, Preferred Stock is classified as a participating security and thereby requires the allocation of income that would have otherwise been available to common shareholders when calculating net income (loss) per share.

Diluted net income (loss) per share is calculated by utilizing the most dilutive result of the if-converted and two-class methods. In both methods, net income (loss) attributable to common shareholders and the weighted-average common shares outstanding are adjusted to account for the impact of the assumed issuance of potential common shares that are dilutive, subject to dilution sequencing rules.

11

The following table presents the components and calculations of basic and diluted net income (loss) per share for each period presented ( in thousands, except share and per share amounts):

The following table includes the number of shares that may be dilutive common shares in the future. These shares were not included in the computation of diluted net income (loss) per share because the effect was either anti-dilutive or the requisite performance conditions were not met:

6. Stock-based Compensation

On February 9, 2016, the shareholders of the Company approved the Amended and Restated Beacon Roofing Supply, Inc. 2014 Stock Plan (the “2014 Plan”). The 2014 Plan provides for discretionary awards of stock options, stock awards, restricted stock units, and stock appreciation rights for up to 5,000,000 shares of common stock to selected employees and non-employee directors. The 2014 Plan mandates that all forfeited, expired, and withheld shares, including those from the predecessor plans, be returned to the 2014 Plan and made available for issuance. As of March 31, 2019, there were 1,720,132 shares of common stock available for issuance.

Prior to the 2014 Plan, the Company maintained the amended and restated Beacon Roofing Supply, Inc. 2004 Stock Plan (the “2004 Plan”). Upon shareholder approval of the 2014 Plan, the Company ceased issuing equity awards from the 2004 Plan and mandated that all future equity awards will be issued from the 2014 Plan.

For all equity awards granted prior to October 1, 2014, in the event of a change in control of the Company, all awards are immediately vested. Beginning in fiscal 2015, equity awards contained a “double trigger” change in control mechanism. Unless an award is continued or assumed by a public company in an equitable manner, an award shall become fully vested immediately prior to a change in control (at 100% of the grant target in the case of a performance-based restricted stock unit award). If an award is so continued or assumed, vesting will continue in accordance with the terms of the award, unless there is a qualifying termination within one-year following the change in control, in which event the award shall immediately become fully vested (at 100% of the grant target in the case of a performance-based restricted stock unit award).

Stock Options

Non-qualified stock options granted to employees generally expire 10 years after the grant date and are subject to continued employment and vest evenly in three annual installments over the three-year period following the grant date.

12

The fair value of the stock options granted during the six months ended March 31, 2019 were estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:

The following table summarizes all stock option activity for the six months ended March 31, 2019 (in thousands, except share, per share, and time period amounts):

________________________________________________________________

During the three months ended March 31, 2019 and 2018, the Company recorded stock-based compensation expense related to stock options of $1.1 million and $0.8 million, respectively. During the six months ended March 31, 2019 and 2018, the Company recorded stock-based compensation expense related to stock options of $2.1 million and $1.9 million, respectively. As of March 31, 2019, there was $7.2 million of unrecognized compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of 2.1 years.

The following table summarizes additional information on stock options for the periods presented (in thousands, except per share amounts):

Restricted Stock Units

Restricted stock unit (“RSU”) awards granted to employees are subject to continued employment and generally vest on the third anniversary of the grant date. The Company also grants certain RSU awards to management that contain one or more additional vesting conditions tied directly to a defined performance metric for the Company. The actual number of RSUs that will vest can range from 0% to 200% of the original grant amount, depending upon the terms of the award and actual Company performance above or below the established performance metric targets. The Company estimates performance in relation to the defined targets when determining the projected number of RSUs that are expected to vest and calculating the related stock-based compensation expense.

RSUs granted to non-employee directors are subject to continued service and vest on the first anniversary of the grant date (except under certain conditions). Generally, the common shares underlying the RSUs are not eligible for distribution until the non-employee director’s service on the Board has terminated, and for non-employee director RSU grants made prior to fiscal year 2014, the share distribution date is six months after the director’s termination of service on the board. Beginning in fiscal year 2016, the Company enacted a policy that allows any non-employee directors who have Beacon equity holdings (defined as common stock and outstanding vested equity awards) with a total fair value that is greater than or equal to five times the annual Board cash retainer to elect to have any future RSU grants settle simultaneously with vesting.

13

The following table summarizes all restricted stock unit activity for the six months ended March 31, 2019 :

During the three months ended March 31, 2019 and 2018, the Company recorded stock-based compensation expense related to restricted stock units of $3.8 million and $3.5 million, respectively. During the six months ended March 31, 2019 and 2018, the Company recorded stock-based compensation expense related to restricted stock units of $6.2 million and $5.9 million, respectively. As of March 31, 2019, there was $24.8 million of unrecognized compensation cost related to unvested restricted stock units, which is expected to be recognized over a weighted-average period of 2.0 years.

The following table summarizes additional information on RSUs for the periods presented (in thousands, except per share amounts):

7. Goodwill and Intangible Assets

The changes in the carrying amount of goodwill for the six months ended March 31, 2019 and 2018 were driven primarily by purchase accounting and foreign currency translation adjustments.

Intangible Assets

In connection with transactions finalized during fiscal year 2018, the Company recorded intangible assets of $1.05 billion ($920.8 million of customer relationships, $120.0 million of indefinite-lived trademarks, and $7.0 million of beneficial lease arrangements).

14

The following table summarizes intangible assets by category (in thousands, except time period amounts):

For the three months ended March 31, 2019 and 2018, the Company recorded $51.8 million and $37.1 million of amortization expense relating to the above-listed intangible assets, respectively. For the six months ended March 31, 2019 and 2018, the Company recorded $103.8 million and $55.3 million of amortization expense relating to the above-listed intangible assets, respectively. The intangible asset lives range from 5 to 20 years and have a weighted-average remaining life of 18.0 years as of March 31, 2019.

The following table summarizes the estimated future amortization expense for intangible assets (in thousands):