CertainTeed DiamondDeck HD Synthetic Roofing Underlayment, 48 in. x 250 ft (10 SQ Roll) Sustainable Materials 500 lb load

500 lb load

seamless profile that feels custom and refined

Designed for 15/16-in Prelude grids

or end molding to handle multiple doorway and edge conditions

CertainTeed DiamondDeck HD Synthetic Roofing Underlayment, 48 in. x 250 ft (10 SQ Roll) Sustainable Materials 500 lb loadDiamondDeck HD Synthetic Roofing Underlayment, 10 SQ Roll High performance, scrimreinforced synthetic roofing underlayment designed for superior weather protection and contractor safety. Offers outstanding dimensional stability versus felt and a slip resistant top surface for secure footing, even when wet. Key Features: High Performance Protection: Synthetic, scrimreinforced design resists water and helps prevent telegraphing wrinkles through shingles