SKU: 48730317848

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

Sale price$539.06 Regular price$598.95
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

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

DensDeck 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 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48730317848

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★★★★★ 5
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Reviewed in the United States on April 4, 2026
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Miriam S. Kimball
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★★★★★ 5
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Excellent, sturdy ball that can both chased and shaken.
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Reviewed in the United States on May 31, 2026
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Ana
Port Orchard, US
★★★★★ 3
Comes with pump
Color: Colorful, Size: Large
My dogs enjoyed it but it’s not large dog proof. I have a husky and German Shepard…..the ball lasted a day before it was torn up. But this would be perfect for smaller or medium sized dogs.
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Reviewed in the United States on March 27, 2026
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Elizabeth Petty
Birmingham, US
★★★★★ 5
Great toy
Color: Colorful, Size: Medium
Best toy ever for my Aussie!
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Reviewed in the United States on May 31, 2026
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Gail
Fort Morgan, US
★★★★★ 5
The answer to calloused feet.
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
If you have dry callused soles, these are your answer. All my calluses left and my feet were very soft. They should not be walked in unless you are very, very careful as you will slip and fall. I stopped using them for a while and all my problem calluses are back, even when I use lotion at night. They tell you not to sleep in them, I don't know why. I do put these on at night and end up taking them off later as they're not comfortable to sleep in.
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Reviewed in the United States on April 28, 2026

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