GAF DensDeck Prime Roof Board, 5/8 in x 4 ft x 8 ft
DensDeck Prime Roof Board (5/8 in, 4x8)
Commercial-grade gypsum roof board with glass mat facings and a pre-primed surface for stronger membrane adhesion. Designed to serve as fire, recovery, and thermal barrier while improving flute spanning and deck stability.
Key Features:
- Pre-Primed Surface: Enhances bond strength with roofing membranes for faster, reliable adhesion
- Durable Glass-Mat Facings: Resists deterioration, delamination, warping, and job-site damage
- Fire and Wind Performance: Provides excellent fire resistance and wind uplift properties
- Structural Support: Superior flute spanning helps stiffen and stabilize the roof deck
- Commercial Roofing Ready: Functions as fire barrier, recovery board, and thermal barrier across systems
Specifications Table:
| Specification | Details |
|---|---|
| Manufacturer Part Number | 50D8 |
| Product Number | GAF06DDP |
| Board Dimensions | 4 ft x 8 ft |
| Thickness | 5/8 in |
| Item Weight | 80 lb |
| Style | Roofing Insulation |
| Construction | Glass mat facings with treated gypsum core |
| Surface | Pre-primed |
| Functions | Fire barrier, recovery board, thermal barrier |
| Performance | Superior flute spanning; improves deck stiffness and stability |
| Resistance | Moisture and water resistant; resists deterioration, delamination, warping, job-site damage |
| Standards/Approvals | ASTM C518; ASTM D3273; ASTM E84; ASTM E96; ASTM E119; ASTM E661; UL723; 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 with a 5/8 in thickness.
Q: Is the surface pre-primed?
A: Yes, the board features a pre-primed surface to improve membrane adhesion.
Q: What applications is this board suited for?
A: It serves 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 and glass-mat facings provide water and moisture resistance.
Q: What standards does it meet?
A: Listed standards include ASTM C518, D3273, E84, E96, E119, E661; UL723; ASTM C578, C177; UL Class A; ULC S-102; FMRC Class 1; ULC 102; UL Classified; Florida Building Code Approved.
A Refined Backbone for High-Performance Roofs
This board brings quiet strength to the envelope—sleek, resilient, and impeccably engineered. The pre-primed, glass-mat surface is a subtle yet powerful detail that ensures a seamless bond under modern roofing membranes. Pair it with minimalist single-ply systems to create a clean, monolithic rooftop profile. It’s an essential layer for a polished, durable, and luxuriously reliable build.
Choose DensDeck Prime to strengthen your roof assembly with superior adhesion, durability, and code-compliant performance.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
DensDeck Prime Roof Board (5/8 in, 4x8)
Commercial-grade gypsum roof board with glass mat facings and a pre-primed surface for stronger membrane adhesion. Designed to serve as fire, recovery, and thermal barrier while improving flute spanning and deck stability.
Key Features:
- Pre-Primed Surface: Enhances bond strength with roofing membranes for faster, reliable adhesion
- Durable Glass-Mat Facings: Resists deterioration, delamination, warping, and job-site damage
- Fire and Wind Performance: Provides excellent fire resistance and wind uplift properties
- Structural Support: Superior flute spanning helps stiffen and stabilize the roof deck
- Commercial Roofing Ready: Functions as fire barrier, recovery board, and thermal barrier across systems
Specifications Table:
| Specification | Details |
|---|---|
| Manufacturer Part Number | 50D8 |
| Product Number | GAF06DDP |
| Board Dimensions | 4 ft x 8 ft |
| Thickness | 5/8 in |
| Item Weight | 80 lb |
| Style | Roofing Insulation |
| Construction | Glass mat facings with treated gypsum core |
| Surface | Pre-primed |
| Functions | Fire barrier, recovery board, thermal barrier |
| Performance | Superior flute spanning; improves deck stiffness and stability |
| Resistance | Moisture and water resistant; resists deterioration, delamination, warping, job-site damage |
| Standards/Approvals | ASTM C518; ASTM D3273; ASTM E84; ASTM E96; ASTM E119; ASTM E661; UL723; 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 with a 5/8 in thickness.
Q: Is the surface pre-primed?
A: Yes, the board features a pre-primed surface to improve membrane adhesion.
Q: What applications is this board suited for?
A: It serves 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 and glass-mat facings provide water and moisture resistance.
Q: What standards does it meet?
A: Listed standards include ASTM C518, D3273, E84, E96, E119, E661; UL723; ASTM C578, C177; UL Class A; ULC S-102; FMRC Class 1; ULC 102; UL Classified; Florida Building Code Approved.
A Refined Backbone for High-Performance Roofs
This board brings quiet strength to the envelope—sleek, resilient, and impeccably engineered. The pre-primed, glass-mat surface is a subtle yet powerful detail that ensures a seamless bond under modern roofing membranes. Pair it with minimalist single-ply systems to create a clean, monolithic rooftop profile. It’s an essential layer for a polished, durable, and luxuriously reliable build.
Choose DensDeck Prime to strengthen your roof assembly with superior adhesion, durability, and code-compliant performance.
