Cladding consisting of a soundproofing complex made up of a porous textile fibre felt and an asphalt-free polymer-based synthetic sheet with a density of 2,010 Kg/m3 with a total density of 7.6 Kg/m2 and 14 mm thick, type TECSOUND® FT 75, fixed to the support using contact adhesive and mechanical fixing with a PVC dowel, type FIJACION PT-H; self-supporting galvanised steel framework consisting of a 48 mm horizontal structure (channel) on a TECSOUND S50 BAND 50 damping band and a 46 mm vertical structure (stud) placed every 600 mm, on which two 12.5 mm plasterboard sheets will be screwed; placement of absorbent material such as mineral wool 45 mm thick and 50 kg/m3 density between studs and placement of acoustic insulation with self-adhesive acoustic sheet with an elastomeric bitumen base, reinforced, flexible and 1500 kg/m3 density, 6 kg/m2 and 4 mm thick type INSOPLAST AA 6 between panels.