Thermal reflective insulation for sloping roofs over non-habitable spaces

Thermal reflective insulation for sloping roofs over non-habitable spaces, formed by a multi-layer complex, with vapor barrier, water vapor diffusion resistance factor 4444, according to UNE-EN 13984, 45 mm thick, with an emissivity of 0.06 on both sides, an intrinsic thermal resistance (without air chamber) of 1.9 m²K/W and a thermal conductivity of 0.024 W/(mK). Installation on site: with overlap and fixed with 24x48 mm wooden battens to the concrete substrate surface; prepared for the subsequent formation of an air chamber. Including screws for fixing the battens to the substrate surface, self-adhesive tape for sealing joints.