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 6 - Aug 11

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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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Amazon Customer
Port Orchard, US
★★★★★ 1
Not impressed
Color: Beige, Size: 21.5"- 1 Panel
Very flimsy but does the job intended
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 3
Fair
Color: Black, Size: 88"- 4 Panel
Fair product. Very cheap quality.
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Reviewed in the United States on August 10, 2025
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TJD
Phoenix, US
★★★★★ 5
Sturdy and Easy to Move
Color: Black, Size: 132"- 6 Panel
This 6 ft black partition on wheels is exactly what I needed to divide space without sacrificing style or stability. It’s sleek, professional-looking, and blends in well with any environment—from office spaces to home studios. The build quality is impressive—very sturdy and doesn’t wobble at all once it’s in place. The wheels glide smoothly and lock securely, making it easy to reposition or keep stationary as needed. Assembly was quick and straightforward, with all parts clearly labeled. Overall, this partition is a perfect combination of functionality and design. Highly recommend it if you need a durable, mobile room divider that looks great and performs even better.
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Reviewed in the United States on August 4, 2025
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Verified Purchase
Harrison Cole Youngren
Waukegan, US
★★★★★ 5
Nice once put together.
Color: Black, Size: 88"- 4 Panel
I really enjoyed these ones. They got put up, putting them together was a two-man task and not very easy at all. They work really good. They're very heavy duty. You can hang things on them. I kick mine out of the way and they work like a charm!
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Reviewed in the United States on November 2, 2025
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WW
Phoenix, US
★★★★★ 5
Very useful
Color: Black
I’ve been using this room divider to separate my space from my daughter’s, and it has worked out really well. It provides just the right amount of privacy while still keeping the room feeling open and comfortable. The design is simple yet stylish, so it blends nicely with our decor. It’s also lightweight and easy to move when needed, which is a big plus. The material feels durable and well-made, not flimsy at all. Overall, it’s a practical and attractive solution for shared spaces, and I’m very happy with this purchase. I would definitely recommend it to others.
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Reviewed in the United States on April 16, 2026

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