• Covers 65 Sq. Ft. • Provides Crack Isolation Protection On Cement Slabs • Easy To Install • Underlayment Features A Patented Shear Stress Control® System With Non-Woven Anchoring Fleece To Neutralize stress Caused By Movement In The Substrate • Exclusive Waterproofing And Vapour Management System Provides Open-Air Channels On The Underside To Allow Moisture To Dissipate • Eliminates Tile Cracking • Mfg #TT8000RED20R