When it comes to home construction, water can be your worst enemy. That’s why Allura Fiber Cement Backerboard + Underlayment is the all-around better choice. Unlike plywood, our Backerboard and Underlayment products feature an exceptionally durable and dense, non-porous surface, perfect for kitchen and bathroom applications. What’s more, it fastens and installs easily with screws or nails

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.