Georgia-Pacific

Building Products

DensDeck® Roof Boards

- Durability and Versatility for Commercial Roof Systems

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DensDeck Roof Board is durable and versatile

Durable, Versatile Roof Substrate and Cover Board

Versatile and durable, DensDeck® roof boards can help add lifespan and sustainability to virtually any type of commercial roof system.

Whether a building’s structural roof deck is wood, steel or concrete, DensDeck® roof boards can help manage the unique challenges that each one presents. DensDeck® roof boards help protect against the impact of foot traffic, hail damage, and external sound intrusion. As a thermal barrier, DensDeck®, with its noncombustible* core, provides superior fire resistance — better than wood fiberboard, perlite or high-density polyisocyanurate.

For More information or to Find a DensDeck® Specialist in Your Area:
Call 1-800-225-6119 | or Email

Longer Life for Low-Slope Roofs

Longer Life for Low-Slope Roofs

Whether protecting structural elements or any type of insulation (ISO, EPS, Fiberglass), DensDeck® will help extend the life of the roof. It provides a superior thermal barrier for wood decks. For corrugated steel systems, DensDeck provides a flat, rigid surface for fasteners and adhesive. For concrete decks, DensDeck provides a uniform underlayment for adhered systems. For membrane-type roof systems, durable DensDeck products enhance performance and prevent puncture, so the roof will perform better over time.

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Sound Isolation

Sound Isolation

DensDeck® Prime roof boards can help dampen unwanted outside noise. In new construction or in retrofit applications, DensDeck® enables an innovative solution for exterior sound remediation.

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Vegetative, Photovoltaic (Solar) and Cool/Reflective Roof Systems

Vegetative, Photovoltaic (Solar) and Cool/Reflective Roof Systems

DensDeck roof boards meet the stringent requirements of innovative roofing technologies. These fiberglass mat gypsum panels contribute strength and stability to roofing systems that support heavy alternative energy equipment and increased foot traffic during installation and maintenance. As a substrate or cover board, DensDeck can support the membrane and protects the more fragile thermal insulation layer from damage.

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Membrane Roof Systems

Membrane Roof Systems

Hail can cause costly damage to a low-slope roof system. The contents of the building are also at risk when the roof system is damaged. DensDeck helps mitigate the risk of hail damage, increasing the performance of the roof and lengthening the warranty term for most building owners.

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* As described and tested in accordance with ASTM E 136 (CAN/ULC S-104)

For recommendations and limitations of use for DensDeck Roof Boards, click here to download the technical brochure. Georgia-Pacific Gypsum does not warrant or provide specifications for any specific roofing assembly or any component other than DensDeck Roof Boards. Consult with the appropriate system manufacturer or design authority for system specifications and instructions.

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