Aluthermo Quattro Insulation An ideal insulation solution for interior and exterior applications. An ideal all-in-one solution, Quattro acts as an insulation material, vapour barrier and roof membrane. An ultra-thin, multi-reflective, 4 layered aluminium insulation material which is thermally-welded across all its surfaces. Quattro is a semi-rigid complex composed of the following successive layers: A film of pure aluminium, 30 microns thick, treated against oxidation A layer of bubbles of dry air enclosed in self-extinguishing polyethylene A film of pure aluminium treated against oxidation A foam of self-extinguishing and waterproofed polyethylene A film of pure aluminium treated against oxidation A layer of bubbles of dry air enclosed in self-extinguishing polyethylene A film of pure aluminium, 30 microns thick, treated against oxidation Dimensions: 1.2m x 25m roll Weight: 750 g/m2 This thin layer of insulation has many different from roofing to flooring such as: Under screed With underfloor heating Under wooden floor Under floating floor A roof membrane and vapor barrier - its installation from the exterior, rolled out over the rafters As internal roof insulation - rolled out directly under the rafter, its installation is easy and quick and avoids an increase of the rafter thickness Insulation on the exterior building leaf - Quattro allows heat retention and accumulation and protects from solar radiation For more information on this product, please see the technical data sheet linked here.