PROVA-FLEX® is a durable, lightweight tile underlayment that provides crack isolation protection on cement slabs and an easy-to-install, labor saving alternative to backer board on wood substrates.

• Features a patented Shear Stress Control® system with non-woven anchoring fleece to neutralize stress caused by movement in the substrate
• The top scrim ensures a superior mechanical bond with the cured thinset holding the tile to the PROVA-FLEX®, while the bottom fabric neutralizes stress caused by multi-directional lateral substrate movement thereby protecting the tiled surface.
• Eliminates tile cracking
• Premium modified thin set mortar required for installation
• Rated EXTRA HEAVY byTCNA (ASTM C627)