PermaBase Cement Board
Cement Board

PermaBase® BRAND Cement Board is a rigid substrate made of Portland cement, aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to moisture.

It works well as an underlayment for tub and shower surrounds, countertops, flooring, and a variety of other interior and exterior applications. Lightweight and easy to install, our EdgeTech® Technology allows a closer nail or screw application.

  • Stays intact when exposed to water; will not rot, disintegrate, or swell
  • Achieves the industry’s lowest water-absorption rating (ASTM C473)
  • Helps inhibit mold growth with the highest possible score on mold tests (ASTM D3273 and ASTM G21)
  • Resists impact and remains dimensionally stable
  • Building code approved and meets UL classifications for one-and two-hour fire-rated assemblies