James Hardie HardieBacker Cement Board with HydroDefense Technology is a waterproof cement backerboard designed for use on walls, floors and countertops. Use on walls in moisture prone areas, as a tile backerboard and as an underlayment for all tile, vinyl and wood flooring applications. Formulated with MoldBlock Technology to protect the board against damage from mold. Works great in wet areas such as bathrooms, kitchens and laundry rooms. Provides strength, ease of use and excellent tile adhesion creating a solid base for projects. Waterproof composition throughout entire board saves cost by eliminating the need to apply a separate waterproof coating across the surface of the board.
California residents
Protect projects with confidence, waterproof cement board provides the ultimate barrier to moisture on walls and flooring
Contains no fillers or abrasive aggregate, made with 90% Portland cement and sand for strength creating a strong foundation for projects
Fully waterproof composition throughout the board saves time by eliminating the need to waterproof entire surface
Skip the step of waterproofing entire board - just waterproof joints and fasteners
Score and snap - easy, quick and clean cut indoors using a scoring knife or a utility knife
Strong enough for use in commercial or residential applications
3 ft. x 5 ft. board is 0.42 in. deep and works on floor, wall, countertop or backsplash applications