Amber Decoupling Membrane 5m2 RollAmber Decoupling Membrane is a polyethylene membrane with rounded square shaped studs that form channels, specifically designed to embed and fasten electric underfloor heating cables. This new decoupling membrane matting offers many benefits, including 40% higher compression resistance, 45% more tensile strength and reduced curling and rollback due to its sturdy polyethylene construction. The membrane, when paired with the Amber heating cable, provides comfortable, warm floors, allowing heat from the electric cable to be distributed evenly across the floor. Suitable for use on the following substrates: concrete floors, timber floors, plywood panels, cement screed, anhydrite screed, green screed and tile backer boards. 5.5mm thickness. Includes full installation instructions, but don't worry we offer full technical advice should you have any questions.