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.
 
Patented Shear Stress Control® system with non-woven anchoring fleece neutralizes stress caused by movement in the substrate
Top scrim allows for a superior mechanical bond with the cured thinset
3mm (0.12") thick
Rated "EXTRA HEAVY" by TCNA
Roll Size: 3.28 ft. W x 82 ft. L (269sq.ft)