DensDeck Prime 1/4-inch fiberglass mat gypsum cover boards demonstrated 2.5 times greater flexural strength, per ASTM C473 test methodology, compared to competitive 1/4-inch gypsum fiber boards. For contractors using the board, the advantage of flexural strength (the ability of a material to withstand bending loads) is that it boosts efficiency on the job site.

Specific attributes include ease in handling, easy scoring and snapping with no special tools required, which means less breakage and waste—all of which can lead to significant time and potential money savings. The overall durability and performance of the product—demonstrated in its fire resistance, strength, pull-through resistance, dimensional stability and mold resistance—provides a number of other advantages for contractors.