The best base for a great finish
PermaBASE Construction Guide
Our new interactive guide features all the product information and installation instructions for cement board products manufactured or offered by PermaBASE Building Products.
Industry's largest variety of options
View All ProductsPermaBASE® Cement Board
PermaBASE PLUS® Cement Board
PermaBASE WP™ Waterproof Cement Board
PermaBASE UltraBacker® Cement Board
PermaBASE CI™ Insulated Cement Board
PermaBASE™ Foam Tile Backer
DEXcell® Cement Roof Board
National Gypsum Company is the exclusive service provider for products manufactured by PermaBASE Building Products, LLC.
The ideal substrate
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.
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Covering the most demanding applications
Designs & Resources
Find product details and technical documentation in the Design & Resource Center.
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Expert Connection
Discuss your project with PermaBASE experts who can help guide your product selection.
Get In TouchNeed Technical Information?
Call 1-800-NATIONAL®
National Gypsum Company is the exclusive service provider for products manufactured by PermaBASE Building Products, LLC.