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DensDeck® Roof Board

Versatile DensDeck® Roof Boards are utilized in a wide variety of roofing systems for new and re-roofing applications as cover boards and thermal barriers.

Featuring a combination of fire resistance, strength and dimensional stability, DensDeck roof boards enhance the performance of all roofing assemblies and are widely respected by leading roofing system manufacturers and consultants. Watch Video

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Versatile DensDeck® Roof Boards are utilized in a wide variety of roofing systems for new and re-roofing applications as cover boards, overlayments and underlayments.

Featuring a combination of fire resistance, strength and dimensional stability, DensDeck roof boards enhance the performance of all roofing assemblies and are widely respected by leading roofing system manufacturers and consultants.

DensDeck roof board, with its fiberglass mats and non-combustible gypsum core* - is resistant to mold growth, and has scored a 10, the highest level of performance for mold resistance under the ASTM D 3273 test method.

With billions of square feet installed over three decades in a complete range of roofing systems and climate extremes, DensDeck® Roof Boards have proven their toughness and versatility. DensDeck® panels continue to earn industry accolades due to their ability to deliver high quality performance, every time.

  • Recent survey findings name DensDeck Prime as the overall preferred cover board brand among roofing contractors.
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For recommendations and limitations of use for DensDeck Roof Boards, 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.

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

The USGBC logo and LEED are a trademarks of the U.S. Green Building Council and are used with permission.

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