Azek Investor Presentation Deck

DIFFERENTIATED & PROPRIETARY CAPABILITY CREATES COMPETITIVE ADVANTAGE AND NEW PRODUCT INNOVATION GROWTH OPPORTUNITIES Leader in Capped Polymer Decking Technology (TimberTech AZEK) ● ● ● #1 premium product in the market Realistic look of premium hardwoods Class A Flame Spread Rating in the TimberTech AZEK Vintage Collection Multi-width options (5.5", 7.25") Patented Panelized Rail System Leads To Increased Contractor Productivity ● Unique UltraLox InterlockingⓇ Technology THE AZEK. COMPANY Proprietary Capped Composite Streaking Technology (TimberTech PRO) ● ~35% Five-Year Blended New Product Vitality¹ Leading Exteriors Portfolio With Unique Trim And Siding Technology ● More realistic and complex visuals of any capped composite on the market Capped on 4 sides ● Workability of wood, with low maintenance, durability benefit of engineered materials Functional innovations that drive contractor productivity ¹ We define Five-Year New Product Vitality as the percentage of gross sales in fiscal 2020 derived from products first introduced in fiscal 2020 and the four preceding years, excluding gross sales from Versatex, Ultralox and Return Polymers. 9

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