When you design a space every element contributes to the performance– even the drywall. Whether it’s creating healthier spaces with walls that clean the air, more restful spaces with walls that control sound, or spaces where durable walls can handle anything, we know walls matter. That’s why CertainTeed engineers innovative drywall solutions that enhance occupant comfort and create better environments for working, playing, learning and healing.

National Gypsum 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. PermaBase is ideally suited as an underlayment or backing surface for tub and shower surrounds, countertops, flooring and a variety of other interior and exterior applications.

In addition to being the ideal solution for interior walls or floors, PermaBASE cement board products are also a great option for exterior walls. A rigid substrate made of Portland cement, aggregate, and glass mesh, they provide an exceptionally hard, durable surface that is able to withstand prolonged exposure.