Azek IPO Presentation Deck

Disclaimer AZEK COMPANY THE Important Notice Some statements made in this Roadshow presentation may constitute forward-looking statements within the meaning of the federal securities laws. Forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts, but rather are based on current expectations, estimates, assumptions, forecasts or projections about the company's industry and the company's business and financial results. Forward-looking statements often include words such as "anticipates," "estimates." "expects" "projects," "forecasts", intends," "plans," "believes", "suggest", "estimate", "target", "should", "could", "would", "may", "might", or "will" and words and terms of similar import Forward-looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside our control Forward-looking statements include, but are not limited to, statements about our market opportunity and the potential growth of that market, the potential impact of the COVIO-19 public health pandemic, our strategy, outcomes and growth prospects, trends in our industry and markets and the competitive environment in which we operate. Actual results, events, developments, performance or achievements may vary matenally from those stated in, or implied by, any forward looking statements, and the assumptions on which forward looking statements are based may prove to be incorrect. Factors and uncertainties that might cause such differences in such forecasts and projections and other forward looking statements include, but are not limited to: the fact that our business, financial condition and results of operations are being, and are expected to continue to be, adversely affected by the current CONID 19 pandemic, the fact that demand for our products is significantly influenced by general economic conditions and trends in consumer spending an outdoor living and home exteriors; risks associated with us competing against other manufacturers, risks related to the seasonal nature of certain of our products and the impact of changes in weather conditions and product mix; our ability to develop and introduce new and improved products, our ability to effectively manage changes in our manufacturing process, risks related to our ability to accurately predict demand for our products and to maintain relationships with key distributors or other customers, risks related to shortages in supply, price increases of deviation in the quality of raw materials; our ability to retain management: risks related to acquisitions or joint ventures; our ability to maintain product quality and product performance and potential exposures resulting from our product warranties; our ability to ensure that our products comply with local building codes and ordinances; risks arising from the material weaknesses we have identified in our internal control over financial reporting and our ability to maintain an effective system of internal controls. Other risks may also cause actual results to differ materially from those projected by any forward-looking statements. New factors emerge from time to time and it is not possible for the company to predict all such factors, nor can the company assess the impact of any such factor on its business or the extent to which any factor, or combination of factors, may cause results to dirler materially from those contained in any forward-looking statement. The forward-looking statements made in this presentation relate only to events as of the date on which such statements are made. We undertake no obligation to update any forward- looking statements after the date of this presentation or to conform such statements to actual results or revised expectations, except as required by law. In addition, while we believe the industry and market data included in this presentation were based on reasonable assumptions when prepered, the industry and market data involve risks and uncertainties and are subject to change based on various factors. In particular, the market and industry estimates in this presentation were prepared prior to the COVID-19 pandemic. The data provided by Principia Consulting, LLC (Principia") is as of October 2019 and presents final data for 2018. Principia's final 2019 data is expected to be released in the second half of 2020. We expect that the COVID-19 pandemic may materially reduce the growth of various of the markets discussed in this presentation, and we cannot predict the extent to which these estimates will be affected. These and other factors could cause results to differ materially from those expressed in, or implied by, the estimates made by independent parties and by us. We have filed the Registration Statement (including a preliminary prospectus) with the SEC for the offering to which this presentation relates. Before you invest, you should read the preliminary prospectus in the Registration Statement and the other documents we have filed with the SEC for more complete information about us and the offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, we or an underwriter participating in this offering will arrange to send you the prospectus if you request it from Barclays, c/ Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, by telephone at (888) 603-5847 ur by email at [email protected], BufA Securities, NC1- 004-03-43; 200 North College Street, 3rd Floor, Charlotte, North Carolina 28255-0001, Attention: Prospectus Department of by email at de [email protected], Goldman Sachs & Co. LLC, Attention: Prospectus Department, 200 West Street, New York, NY 10282, by telephone at (866) 471-2526, by facsimile at (212) 902-9316 or by email at [email protected],or Jefferies, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, 2nd Floor, New York, NY 10022, by telephone at (877) 821-7388 or by email at Prospectus [email protected]. Non-GAAP Measures This presentation () contains non-GAAP measures, uses terms which are not generally used in presentations made in accordance with GAAP, () uses terms which are not measures of financial condition or profitability and (v) contains terms which are unlikely to be comparable to similar measures used by other companies in our industry. As a result, these financial measures have limitations as analytical and comparative tools and you should not consider these items in isolation, or as a substitute for analysis of our results as reported under GAAP. For a reconciliation of non-GAAP measures used in this presentation to the closest comparable GAAP measure, see the Appendix hereto.

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