m2 Roof consisting of: Perforated sheet metal support; Thermal insulation filling in the perforated ribs of the support sheet with MINERAL WOOL of 40mm thickness and 60 kg/m3; Acoustic insulation made up of synthetic polymer-based sheet without asphalt with a density of 2,010 Kg/m³, 5 Kg/m² and 2.5 mm thick, TECSOUND® 50; Thermal insulation layer with MINERAL WOOL 120 mm thick and 124 kg/m3, installed by mechanical fixings to the support sheet, Two-layer waterproofing membrane mechanically fixed to the sheet SBS elastomeric modified bitumen support with reinforced and stabilized polyester (FP) felt armor with a flexibility at low temperatures < /= -15ºC type MORTERPLAS SBS FM 3 KG designation: LBM-30-FP according to UNE 104410-2013 i with a top sheet self-protected adhered to the bottom of SBS elastomeric modified bitumen with high softening point, with a mineral finish on the upper face and a tremobusible film on the lower face with reinforced and stabilized polyester (FP) felt armor, with flexibility at low temperatures ≤-15ºC type MORTERPLAS SBS FPV 4 KG MIN designation: LBM- 40/G-FP according to UNE 104410-2013.