Azek Investor Presentation Deck

1111 Important Notice DISCLAIMER This presentation contains "forward-looking statements" within the meaning of the safe harbor provisions of the United States Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts contained in this presentation, including statements regarding future operations are forward-looking statements. In some cases, forward looking statements may be identified by words such as "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "could," "would," "expect," "objective," "plan," "potential," "seek," "grow," "target," "if," and similar expressions intended to identify forward-looking statements. Projected financial information, including our future financial and operating performance, growth and margin expansion targets, objective and goals as well as statements regarding our guidance and outlook, are forward- looking statements. Other forward-looking statements may include, without limitation, market data and other statements about the markets in which we operate, including the economic environment and supply and demand balance, wood conversion expectations as well as growth of our various markets and our expectations and ability to share in such growth; statements about future pricing for our products or our raw materials and our ability to successfully manage market risk and control or reduce costs; statements with respect to our ability to meet future goals and targets, including the environmental, social and governance targets we aspire to; statements about our future expansion plans, capital investments, capacity targets and other future strategic initiatives; statements about potential new products and product innovation; statements about the potential impact of the COVID-19 pandemic; and any other statements about our future business objectives, plans, strategies and initiatives, including our competitive position and prospects. We have based these forward-looking statements on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in the section titled "Risk Factors" set forth in our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and in our other filings with the U.S. Securities and Exchange Commission ("SEC"). Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for us to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the future events and trends discussed in this presentation may not occur and actual results may differ materially and adversely from those anticipated or implied in the forward-looking statements. You should read this presentation with the understanding that our actual future results, levels of activity, performance and events and circumstances may be materially different from what we expect. Non-GAAP Measures This presentation (i) contains non-GAAP measures, (ii) uses terms which are not generally used in presentations made in accordance with GAAP, (iii) uses terms which are not measures of financial condition or profitability and (iv) 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. 2

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