WarmWire HeatMatrix uncoupling membrane from SunTouch protects your tile investment while offering a fast, easy method of installing WarmWire electric heating cables. Rest assured, stepping onto a finished tile floor installed with WarmWire and HeatMatrix will guarantee warmth and durability for many years to come. This SunTouch HeatMatrix Anti-Fracture Membrane Mat is designed to offer simplicity during heating wire installation. HeatMatrix mat offers features such as vapor management, sheer stress control, water proofing and optional spacing for room heating control. This anti-fracture mat may be used as a backboard replacement and will cover a 40 sq. ft. area. Simply prepare substrate with modified thinset, set HeatMatrix by embedding the underside fleece into the thinset base, install heating wire at a standard 3 in. spacing and install tile using a thinset as recommended by the tile manufacturer.