Custom Building Products - EasyMat 4' x 100' Crack Insulation Underlayment for Tile and Stone - 3 mm (400 sqft)

A versatile, lightweight, and easy-to-use underlayment for installing tile and stone on any acceptable subfloor. The mat is designed so that the mortar locks in place, creating a bonded crack prevention system for subfloor movement up to 1/4" (6 mm). Its SoundGard technology provides significant and credible impact sound reduction.

• 25 times lighter than 1/4" (6 mm) backerboard
• 9 times lighter than other soundproofing mats
• Available in a peel-and-stick version
• Highest level of impact sound reduction (up to 71 dB)