Azek Investor Presentation Deck

SUMMARY FINANCIAL HISTORY Fiscal year ending September 30 ($ in millions, excluding EPS) Residential Commercial N et sales Adjusted Gross Profit Adjusted Gross Profit Margin Adjusted SG & A % of Net sales Adjusted EBITDA Adjusted EBITDA Margin Segment Adjusted EBITDA Residential Commercial Adjusted Net Income Adjusted Diluted EPS Operating cash flow Capital expenditures Net leverage ratio Adjusted RON TA $ $ 20 17 FY 502.1 130.6 632.6 224.5 35.5% 93.3 14.7% 13 1.3 20.7% 147.3 16.1 $ 24.2 $ $ 0.22 $ $ (22.5) $ $ 57.4 $ 6.2x $ 54 1.9 139.9 $ 681.8 THE AZEK COMPANY FY $ 2018 254.1 37.3% 10 4.0 15.3% 150.1 22.0% 168.4 21.7 39.2 0.36 67.3 (42.8) Twelve M onths Ended September 30, 20 19 YOY % 7.0 x YOY % $655.4 138.8 7.8% $ 794.2 7.9% 7.1% 13.2% 11.5% 14.3% 14.3% 34.2% $ FY $ $ 314.9 39.6% 135.3 17.0% 179.6 22.6% 62.3% $ 46.7 188.7 21.5 0.43 94.9 $ (63.0) 5.7x 20.9% (0.8%) 16.5% 23.9% 30.1% 19.7% $ 12.1% (0.8%) 18.9% $ 771.2 128.1 899.3 $ FY $ 20 20 $ 359.1 39.9% 145.6 16.2% $ 72.6 213.5 23.7% 238.1 15.1 0.59 98.4 (95.6) 1.2x YOY % 17.7% (7.7%) 13.2% 14.0% 7.6% 18.9% 26.1% (30.0%) 55.5% 20 21 LTM Q3 971.7 125.1 1,096.8 433.5 39.5% 174.8 15.9% 258.7 23.6% 297.0 17.2 314.2 $ 205.8 $ (156.9) 1.0 x YoY% N/M 35.4% (6.2%) 28.9% 27.5% 24.9% 29.4% 36.3% (6.1%) 20 20 YTD Q3 $ 538.5 96.8 635.3 N ine M onths Ended June 30, 20 21 $ $ 147.4 23.2% $ 253.0 39.8% $ 105.6 16.6% $ 28.3 164.0 11.2 0.25 (54.8) YTD Q 3 N/M $ $ $ $ 11.3 $ $ $ 739.0 93.8 832.9 327.6 39.3% 134.9 16.2% 19 2.7 23.1% 223.0 13.3 10 2.8 0.66 118.7 (116.0) N/M YOY % 37.2% (3.1%) 3 1.1% 29.5% 27.7% 30.7% 35.9% 19.0% 44.3% 40.1% N/M N/M 40.6% 4 1.3% Notes: Adjusted RONTA is calculated as Adj. EBITA / Net Tangible Assets, where Net Tangible Assets are calculated as Trade Receivables, net + Inventories + PP&E, net - Accounts Payable; Numbers may not sum due to rounding. 263.3% 33

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