Schluter Ditra-Heat is a polypropylene membrane with a cut-back stud structure and anchoring fleece laminated to the underside. The thickness of the mat, including the stud structure is 1/4". The stud structure of Ditra-Heat is specifically designed to secure Ditra-Heat-E-HK electric floor heating cable in place. In addition, Ditra-Heat integrates customizable, comfortable electric floor warming with the functions associated with Ditra uncoupling, waterproofing, vapor management and support to ensure a long lasting installation.