Azek Investor Presentation Deck

REPURPOSING WITH A PURPOSE GROWTH UNDERPINNED BY ESG LEADERSHIP We are deeply committed to making a lasting impact on the world by accelerating our use of recycled materials, thus, enabling us to divert hundreds of millions of pounds of waste from landfills each year, reduce our carbon footprint and drive margin expansion. ~400 MILLION ONE BILLION 54% Pounds of scrap and waste diverted from landfills through our recycling programs in fiscal 2020. We aspire to use 1 billion pounds of recycled materially annually by the end of 2026. Percentage of extruded materials manufactured from recycled materials in fiscal 2020. THE AZEK. COMPANY AZEK FULL-CIRCLE PRODUCTS PEOPLE PLANE 2020 ESG REPORT Our high-performance engineered decking is more environmentally sustainable than traditional wood decking. o ~80% recycled material in our TimberTech capped composite decking; 15% lower global warming potential than sustainably harvested pine decking¹ o ~50% recycled material in our TimberTech capped polymer decking; 5% lower global warming potential than sustainably harvested pine decking¹ o We are advancing the circular economy by diverting hundreds of millions of pounds of waste from landfills each year, turning it into beautiful products that can last upwards of 25 to 50 years and are recyclable at the end of life To learn more about how we're creating goods that do good, please see our 2020 ESG Report. ¹ According to the results of our peer-reviewed Life Cycle Assessment. 14

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