Azek Investor Presentation Deck

SUPERIOR VALUE PROPOSITION VS. TRADITIONAL MATERIALS AZEK'S PRODUCTS OFFER: SUPERIOR AESTHETICS, DURABILITY, EASE-OF-INSTALLATION, REDUCED MAINTENANCE AND LOWER TOTAL LIFECYCLE COSTS Value proposition, consumer engagement and education drive conversion. THE AZEK COMPANY Decking Material Costs Labor and Other Costs $8.8K $0.9 INSTALLATION COST (¹) (2) $7.9 $9.1K $1.5 $7.6 TimberTech EDGE $9.5K EDGE Prime+ Trading up to a better-looking multi- colored board would only cost an extra ~$400. Pressure Treated Lumber EDGE Prime (Mono) ~16% of total cost attributed to deck materials LIFECYCLE COST (¹) (³) Maintenance Costs Installation Costs $19.0K $10.2 $8.8 Pressure Treated Lumber $11.9K $2.8 $9.1 TimberTech EDGE Prime (Mono) ~38% savings in total lifecycle costs EDGE Source: Management estimates. 1. Assumptions and estimates are based on AZEK market knowledge and feedback from decking-focused contractors with experience installing TimberTech and wood decking products. This is an illustrative example; actual costs for any particular installation can vary significantly. Assumes pressure treated lumber deck board pricing of $1.18 per linear foot based on Dec. 2020 average compiled prices. 2. Total Deck Project Installation Costs represent the total aggregate costs of an initial deck installation for a 16' x 20' elevated deck and exclude costs associated with the installation of rail or stairs. 3. Total Deck Life-Cycle Costs represent both the aggregate costs of an initial deck installation and estimated maintenance costs over a 25-year period for a 16' x 20' elevated deck excluding potential replacement costs. 22

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