NUHEAT Membrane is a tile underlayment that can be installed over the entire subfloor for uncoupling, crack isolation and waterproofing purposes. Nuheat Membrane replaces the need for a second layer of plywood or concrete backer board in most tile installations. Nuheat Membrane comprises of a polypropylene plastic layer that features square-shaped columns which form channels specially designed to embed and hold the Nuheat Cable Floor Heating System. The square-shaped columns provides a vapor management system which allows moisture to escape from the substrate during the curing process. The polypropylene layer is heat-welded to a non-woven polypropylene fabric which absorbs thinset and bonds the Nuheat Membrane to the subfloor.