CertainTeed Roofing DiamondDeck HD Synthetic Roofing Underlayment, 48 in x 250 ft (10 SQ Roll)
Regular price $188.33DiamondDeck HD Synthetic Roofing Underlayment, 48" x 250'
High-performance, scrim-reinforced synthetic underlayment engineered for superior weather protection and installer safety. Ideal beneath shingle, shake, metal, or slate roofs, it offers exceptional dimensional stability and a slip-resistant top surface to work confidently—even when wet.
Key Features:
- High Performance Protection: Scrim-reinforced, water-resistant synthetic underlayment for long-lasting roof defense
- Dimensional Stability: Resists wrinkling versus felt, preventing telegraphing through shingles
- Slip-Resistant Surface: Special top coating improves traction for safer installation, even when wet
- Lightweight & Durable: Easy to carry with excellent tear resistance to reduce punctures
- Generous Coverage: 48 in x 250 ft roll provides approximately 937.5 sq ft (10 squares) of coverage
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Roll Width | 48 in |
| Roll Length | 250 ft |
| Coverage | 937.5 sq ft per roll (10 squares) |
| Product Style | Underlayment |
| Type | High-performance synthetic, scrim-reinforced, water-resistant underlayment |
| Slip Resistance | Special top surface treatment for traction, even when wet |
| Comparative Performance | Exceptional dimensional stability vs. standard felt; resists wrinkling and telegraphing |
| 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 |
| Manufacturer Number | 95313 |
| Product Number | CTRDD |
Frequently Asked Questions (FAQ):
Q: What roofing materials can this underlayment be used with?
A: It’s suitable beneath shingle, shake, metal, or slate roofing systems.
Q: How much coverage does one roll provide?
A: Approximately 937.5 sq ft per roll (10 squares).
Q: Is it safer to walk on than felt?
A: Yes. The special top surface treatment provides excellent slip resistance, even when wet.
Q: Does it meet building code and fire standards?
A: Yes. It carries approvals including UL 790 Class A, ASTM E108 Class A, ICC-ES ESR-3344, Florida Building Code, Miami-Dade, TDI, and more.
Q: What are the roll dimensions and weight?
A: Roll size is 48 inches wide by 250 feet long; weight is about 38 lb.
A Sleek, Secure Foundation for Elevated Rooflines
DiamondDeck HD lays down a refined, matte canvas that quiets visual clutter and sets the stage for an immaculate roof silhouette. Its scrim-reinforced body brings a tailored rigidity, keeping lines crisp beneath shingles or metal panels. Style it with dark architectural shingles for a bold, modern crown or pair with standing-seam metal to underscore clean geometry. Consider it the invisible luxury—performance you feel in every flawless plane.
Choose DiamondDeck HD today for safer installs, stable coverage, and lasting roof performance.
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