Schluter Systems Ditra 54-sq ft Orange Plastic Waterproofing Tile MembraneUncoupling membrane for tiled floor applications Prevents cracked tile and grout and provides waterproofing Ditra is 1 8 in thick and is designed for ceramic and stone tile Install over a wide range of substrates, including plywood OSB, concrete, gypsum, heated floors, etc Provides uncoupling, waterproofing, vapor management, and heavy load distribution Easy to install and ready to receive tile immediately For commercial and residential applications