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home > CertainTeed DiamondDeck HD Synthetic Roofing Underlayment, 48 in. x 250 ft (10 SQ Roll) > CertainTeed DiamondDeck HD Synthetic Roofing Underlayment, 48 in. x 250 ft (10 SQ Roll)

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CertainTeed DiamondDeck HD Synthetic Roofing Underlayment, 48 in. x 250 ft (10 SQ Roll)DiamondDeck 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

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DiamondDeck HD Synthetic Roofing Underlayment, 10 SQ Roll

Name: CertainTeed DiamondDeck HD Synthetic Roofing Underlayment, 48 in. x 250 ft (10 SQ Roll)
Brand: azure.archi
SKU: 22243004258
Price: 188.33 USD
Availability: InStock
Rating: 4.4077 (413 reviews)

High-performance, scrim‑reinforced 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, scrim‑reinforced design resists water and helps prevent telegraphing wrinkles through shingles
Slip-Resistant Surface: Special top treatment enhances traction and safety in wet conditions
Dimensional Stability: Won’t wrinkle like felt underlayment, ensuring a flatter shingle application
Durable & Lightweight: Excellent tear resistance with easy handling to speed installation
Code Compliance: Meets ASTM D226/D4869, UL 790 Class A, ASTM E108 Class A; ICC-ES ESR-3344; Florida/Miami‑Dade/TDI approvals

Please check the Product Data Sheet Here

Specifications Table:

Specification	Details
Dimensions	48 in. x 250 ft
Coverage	937.5 sq. ft. per roll (10 squares)
Material	Synthetic, scrim‑reinforced underlayment
Surface	Slip‑resistant top surface
Style	Underlayment
Manufacturer Number	95313
Product Number	CTRDD
Approvals/Standards	ASTM D226 and D4869; UL 790 Class A; ASTM E108 Class A; ICC‑ES ESR 3344; CAN/CSA A220; Florida Building Code Approved; Miami‑Dade County Approved; TDI Approved
Weight	38 lb per roll

Frequently Asked Questions (FAQ):

Q: What is the coverage per roll?
A: Each roll covers approximately 937.5 sq. ft. (10 squares).

Q: What roof types can it be used under?
A: Suitable beneath shingle, shake, metal, or slate roofing systems.

Q: Is it safer to walk on than felt?
A: Yes. The slip-resistant top surface provides improved traction, even when wet.

Q: How much does a roll weigh?
A: Approximately 38 lb per roll.

Q: Does it meet building code approvals?
A: Yes. It meets ASTM D226/D4869, UL 790 Class A, ASTM E108 Class A, ICC‑ES ESR‑3344, and has Florida, Miami‑Dade, and TDI approvals.

A Sleek, Secure Foundation for Elevated Rooflines

DiamondDeck HD lays down a clean, resilient base that keeps roof planes taut and refined. I love its slip‑resistant finish—form meets function for a safer, smarter installation. Pair it with dark architectural shingles to accentuate crisp edges and shadow lines. It’s the quiet luxury beneath the surface that ensures your exterior reads polished and enduring.

Choose DiamondDeck HD today for a safer install and a flatter, longer‑lasting roof system.

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