Georgia-Pacific DensDeck Prime Primed Gypsum Roof Board 5/8 in. x 4 ft. x 8 ft. (Sheet)

Regular price $51.43

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DensDeck Prime primed gypsum roof board

Georgia-Pacific DensDeck Prime is a primed gypsum roof board (cover board) designed to provide a durable, compatible surface for a wide range of commercial roofing assemblies. It’s engineered to improve membrane bond strength while adding resistance to fire, wind, puncture, and hail in demanding roof conditions.


Key Features:

  • Primed Bonding Surface: Built to help improve membrane adhesion and bond strength for longer-lasting roofing assemblies.
  • Moisture-Resistant Performance: Enhanced moisture resistance technology helps protect the roof assembly and building contents.
  • Durable Roof Protection Layer: Acts as a rigid cover board to help defend insulation and membranes from jobsite and in-service abuse.
  • Fire & Weather Resilience: Non-combustible gypsum core contributes to fire resistance and helps stand up to harsh conditions.
  • System Versatility: Intended for mechanically fastened, adhered, and partially adhered roofing systems.

Specifications Table:

Specification Details
Product name GP 5/8" Densdeck Primed 4'X8'
Manufacturer/brand Georgia-Pacific
SKU 62GPDD58P
Category Insulation & Weatherproofing
Sub-category Roof Cover Boards
Unit of measure SH - Sheet
Board type DensDeck Prime Roof Board (primed gypsum roof board)
Nominal thickness 5/8 in
Sheet size 4 ft x 8 ft
Key performance positioning Improves membrane bond strength; enhanced moisture resistance; helps defend against fire, wind, puncture, and hail
Recommended roofing attachment methods Mechanically fastened, adhered, and partially adhered roofing systems

Frequently Asked Questions (FAQ):

Q: What is this board used for?
A: It’s used as a gypsum roof cover board to create a durable, compatible surface layer beneath roofing membranes in commercial roofing assemblies.


Q: What size and thickness is this sheet?
A: This product is a 4 ft x 8 ft sheet in 5/8 in thickness.


Q: Can it be used with different roofing attachment methods?
A: Yes—DensDeck Prime is designed for mechanically fastened, adhered, and partially adhered roofing systems.


Q: Does it help with moisture resistance?
A: Yes—DensDeck Prime is marketed with enhanced moisture resistance to better protect the roof assembly.


A sleek, resilient foundation for modern roof lines

Think of this as the quiet, architectural underlayer that makes the entire roof system feel more intentional—strong, composed, and built to endure. The primed face is the detail that matters, creating a refined bonding surface that supports cleaner execution and lasting performance. Pair it with a high-design roof assembly where durability is non-negotiable and every layer earns its place. It’s the behind-the-scenes essential that elevates protection into something truly luxe.


Choose DensDeck Prime to add a tough, primed cover-board layer that helps your roofing system bond better and last longer.

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Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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