Prova Flex

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

The underlayment features a patented Shear Stress Control® system with nonwoven anchoring fleece to neutralize stress caused by movement in the substrate

With its lightweight functionality and the top scrim layer that provides the ultimate locking mechanism for mortar, you can fill the studs with mortar in just one pass of your trowel and get the job done even faster!

Achieved an EXTRA HEAVY Performance Rating When Tested to ASTM C627

Eliminates tile cracking

Premium polymer-modified thinset mortar required for installation. Premixed mortar or mastic are not to be used

52sq ft Coverage Area