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:

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.