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      Why DensDeck® Roof Board?

      The patented DensDeck® design employs glass mat facings front and back that are embedded into a water-resistant gypsum core providing excellent fire resistance, moisture resistance, and wind uplift properties.

      The unique construction of DensDeck® provides excellent flute spanning that stiffens and provides increased foot traffic resistance to the roof deck. Additionally, DensDeck® has been shown to withstand de-lamination, deterioration, warping, and jobsite damage more effectively than other roofing membrane substrates such as paper-faced gypsum board, fiber board, and perlite insulation.

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      See how this product can help you meet your environmental goals.  View sustainability information here.

      Benefits

      Benefits of DensDeck® Roof Board include:
      • Shown to withstand delamination, deterioration, warping, and jobsite damage more effectively than other roofing membrane substrates such as paper-faced gypsum board, fiber board, and perlite insulation.
      • An excellent fire barrier, DensDeck® Roof Boards feature a noncombustible core and inorganic surface that offer greater fire protection than other conventional commercial roofing products when applied over combustible roof decks and steel decks.
      • DensDeck® Roof Boards are FM tested and approved as the only 1/2" gypsum product to meet the calorimeter requirements for conventionally insulated decks.
      • Tested in accordance with ASTM E84, its surface burning characteristics are Flame Spread-0 and Smoke Developed-0. 5/8"
      • DensDeck® Roof Boards can replace any generic type X gypsum board in any roof assembly in the UL Fire Resistance Directory under the prefix.
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