PhotonFoil Multi Foil Insulation - 1.2m x 10m PhotonFoil is British-made, thin reflective mult-foil insulation for loft conversions, extensions & re-roofing projects. Width: 1.2m Length: 10m Thickness: 33mm Constructed as an air and vapour barrier the product has a high performance glasswool core encased in very low emissivity outer layers. Is designed to be easy to install and save you money. Using glasswool - an already established insulation choice - at its core, the PhotonFoil range delivers: Better thermal performance (lower ) than polyester based multifoils Trusted thermal performance Fire resistance - A1 non-combustible core Insulation thats easier to cut than traditional multifoils and screws without snagging A sustainable range Has achieved LABC Registered Details Value for money