Fast and Simplistic under tile heating solution: Waterproofing, Uncoupling, vapor management and heat cable encapsulation! With all the benefits of the Uncoupling membrane Prodeso Heat also has specifically designed preformed slots to embed and fasten the Prodeso heat cable. Prodeso Heat is made up of two layers, the underside layer is a breathable Polypropylene sheet to allow vapor release. The top layer is a 100% continuous and impervious low-density polyethylene sheet, carefully designed with dovetail shaped reliefs to lock-in adhesives.