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home > GAF DensDeck Prime Roof Board, 5/8 in, 4 ft x 8 ft > GAF DensDeck Prime Roof Board, 5/8 in, 4 ft x 8 ft

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GAF DensDeck Prime Roof Board, 5/8 in, 4 ft x 8 ftDensDeck Prime Roof Board (5 8 in, 4x8) High performance gypsum roof board with glass mat facings and a pre primed surface for stronger adhesion in commercial roofing systems. Engineered to resist fire, moisture, and wind uplift while improving flute spanning and deck stability. Key Features: Pre Primed Surface: Enhances bond strength with roofing membranes and adhesives Durable Construction: Glass mat facings embedded in a moisture resistant treated

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DensDeck Prime Roof Board (5/8 in, 4x8)

Name: GAF DensDeck Prime Roof Board, 5/8 in, 4 ft x 8 ft
Brand: azure.archi
SKU: 2749147903
Price: 598.95 USD
Availability: InStock
Rating: 4.4365000000000006 (722 reviews)

High-performance gypsum roof board with glass-mat facings and a pre-primed surface for stronger adhesion in commercial roofing systems. Engineered to resist fire, moisture, and wind uplift while improving flute spanning and deck stability.

Key Features:

Pre-Primed Surface: Enhances bond strength with roofing membranes and adhesives
Durable Construction: Glass-mat facings embedded in a moisture-resistant treated gypsum core
Fire and Wind Performance: Designed for excellent fire resistance and wind uplift properties
Stability and Support: Superior flute spanning helps stiffen and stabilize roof decks
Damage Resistant: Resists deterioration, delamination, warping, and job-site damage compared to paper-faced gypsum, fiberboard, and perlite

Specifications Table:

Specification	Details
Product Name	DensDeck Prime Roof Board
Brand	GAF
Dimensions	4' x 8'
Thickness	5/8"
Item Weight	80 lb
Style	Roofing Insulation
Manufacturer Number	50D8
Product Number	GAF06DDP
Unit of Measure	SQ \| PC
Applicable Standards	ASTM C518; ASTM D3273; ASTM E84; ASTM E96; ASTM E119; ASTM E661; UL 723; ASTM C578; ASTM C177; UL Class A; ULC S-102; FMRC Class 1; ULC 102; UL Classified; Florida Building Code Approved

Frequently Asked Questions (FAQ):

Q: What are the board dimensions and thickness?
A: This variant is 4 ft x 8 ft and 5/8 in thick.

Q: Is the surface ready for membrane installation?
A: Yes, it features a pre-primed surface to improve adhesion to roofing membranes and adhesives.

Q: Can it be used as a thermal barrier?
A: Yes, it functions as a fire barrier, recovery board, and thermal barrier in various commercial roofing systems.

Q: How does it handle moisture?
A: The treated gypsum core with glass-mat facings provides moisture resistance and helps prevent warping and delamination.

Q: What standards does it meet?
A: Listed standards include ASTM C518, D3273, E84, E96, E119, E661, C578, C177; UL 723; UL Class A; ULC S-102; FMRC Class 1; ULC 102; UL Classified; Florida Building Code Approved.

A Prime Foundation for Sleek, Resilient Roofscapes

DensDeck Prime brings a refined, tailored edge to the roof—its glass-mat surface is both elegant and engineered. The pre-primed finish is a quiet powerhouse, creating a seamless bond for membranes while elevating performance. Pair it with a minimalist single-ply system to underscore clean lines and confidence. It’s a sophisticated essential for resilient, luxurious commercial envelopes.

Strengthen your roofing system with DensDeck Prime—choose the 5/8 in 4x8 board for superior adhesion, durability, and fire performance.