Azek IPO Presentation Deck

Always Do the Right Thing Recycle ☐ 290mm lbs. of waste and scrap diverted from landfills In 2019 through our recycle program ~98% of scrap re used -80% and ~50% of the content in our TimberTech capped composite and capped polymer decking products, respectively, is recycled material -44% of extruded materials from recycle in 2019, and we expect this to increase to ~54% in 2020 Environmental Majority of Residential products are recyclable at the end of their useful lives >1mm trees saved since 2015 Reducing carbon impact from deforestation of exotic woods * Chicago HQ: LEED Certified 2019 Efficient water usage- closed-looped water filtration systems that recycle 96% of water used Social Implemented social distancing and other safety protocols in early March Community engagement: - Proactively reached out to FEMA and local gov. AZEK materials used to support temporary hospitals (Javits Center) Focus on Safety -45% improvement in reportable events since 2016 Committed to diversity: 50% executive team gender/ethnic diversity Manufactured in the U.S. Engaged employee base AZEK COMPANY THE Governance * 30 % gender / ethnic diversity on Board of Directors Formalizing and expanding ESG policies, programs, initiatives and disclosures to further demonstrate commitment to sustainability ESG strategy oversight by Board of Directors Separate Board Chair and Chief Executive Officer S

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