Roof Cover Boards

With billions of square feet installed in a complete range of roofing systems and climate extremes, DensDeck Roof Boards have proven their toughness and versatility. The unique construction has been shown to withstand delamination, deterioration, warping and job site damage far more effectively than paper-faced gypsum board and other conventional roofing products such as wood fiberboard and perlite.

DensDeck® is designed to address persistent challenges inherent in commercial roofing assemblies: fire resistance, strength and dimensional stability when installed in a properly designed roof assembly. DensDeck is a fiberglass mat- faced, noncombustible (as described and tested in accordance with ASTM E136), nonstructural, gypsum core panel.

DensDeck® Prime provides a broader compatibility and higher performance with roofing adhesives. Face mat allows adhesives to be applied more uniformly and consistently and results in a stronger bond with the membrane. For fully adhered and self-adhered “peel & stick” roofing systems, as well as hot mopped, cold mastic and torch-applied modified bitumen roofs, DensDeck Prime provides a stronger, more economical installation by reducing the amount of mastic or adhesive, and potentially eliminating the field primer. Consult with membrane manufacturer for actual priming requirements.