1/2" 3 X 5 PERMABASE

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.Reinforced edge with EdgeTech technology allows for closer fastener application of nails or screws at the edge without crumbling or spinout. Resists the growth of mold. Can be cut utilizing a standard utility knife and straight edge, with PermaBase's unique core composition, little or no additional labor is needed to clean the edge after a cut. PermaBase(R) is impact-resistant, extremely durable and dimensionally stable, it has excellent overall flexural, compressive and tensile strength characteristics. PermaBase(R) is highly moisture-resistant and will not rot, disintegrate or swell when exposed to water. PermaBase(R) has a smoother finish than other brands and has no open edges, which reduces hand chafing