This Radiator Reflector foil roll from Davant is manufactured from a low-density polyethylene foam that’s been laminated with a metallised polyester layer. The metallised polyester layer within the radiator reflective foil is designed to reflect heat whilst the polyethylene foam provides thermal insulation to make a cost-effective product. At just 2mm thick, Davant’s Radiator Reflector foil can be installed on any size or any shape radiator to cut heat loss by up to 50%. By installing this product on the back of every radiator in a 3-bed semi-detached home for example, the savings per year could be quite significant, and this Radiator Reflector foil roll would certainly pay for itself. Davant Radiator Reflector Foil Roll Specifications Length: 4m Width: 470mm Thickness: 2mm Pack Size: Box of 6