It is distinguished by a low installation height and absorbs stress loads emanating from the substrate. Tensile and shear stresses are not transmitted to the upper covering. Provides uncoupling crack isolation properties.
Blanke Permat Reinforcing Underlayment, Sheet (24″ x 38″) 6.5 sq ft – 527-904-US
Only one layer of 3/4″ plywood required under most natural stone installations.