BOARD® PLUS - Waterproofing Tile Backer - 32 in. x 48 in. x 1/2 in (Pk. of 5)

PROVA BOARD® PLUS is a lightweight, high-density tile backer board that is quick and easy to install. The 100% waterproof XPS (extruded polystyrene) core is resistant to vapor pressure and does not support mold growth. The XPS core is sandwiched between tightly woven mesh and layers of cementitious coating. Install with PROVA FASTENERS® and PROVA-SEAL to guarantee a watertight installation. Install on walls, countertops & fireplaces Great for tub surrounds, walk-in showers & building benches Offers support for large format tiles Non-deteriorating/non-rotting properties Highly durable & flame retardant Premium polymer-modified thinset mortar required for installation. Premixed mortar or mastic are not to be used