m2 Roof consisting of: formation of slopes with cellular concrete with an average thickness of 8 cm finished in cement mortar with an average thickness of 2 cm with the necessary surface resistance to receive the waterproofing; Non-woven geotextile separator layer made of 100% polyester ROOFTEX V 200 fibres, mechanically needle-punched with subsequent heat treatment and calendering with biological resistance to fungi and bacteria with a weight of 200 g/m², floating waterproofing membrane made of synthetic PVC-P FLAGON SV 180 sheet, 1.8 mm thick, dimensionally stabilised with 50 g/cm2 fibreglass veil, resistant to UV rays, atmospheric agents and roots, with a tensile strength >/= 9 N/mm2 (EN 12311-2), elongation at break > 200% (EN 12311-2) and a resistance to static puncture > 20 kg (EN 12730) welded by hot air fusion at the overlaps and reinforced in corners and nooks with FLAG ANGLES, Separator layer made of 100% polyester ROOFTEX V 200, mechanically needle-punched with subsequent heat treatment and calendering with biological resistance to fungi and bacteria with a weight of 200 g/m², floating waterproofing membrane made of synthetic PVC-P FLAGON SV 180 sheet, 1.8 mm thick, dimensionally stabilised with a 50 g/cm2 fibreglass veil, resistant to UV rays, atmospheric agents and roots, with a tensile strength >/= 9 N/mm2 (EN 12311-2), elongation at break > 200% (EN 12311-2) and a resistance to static puncture > 20 kg (EN 12730) welded by hot air fusion at the overlaps and reinforced in corners and nooks with FLAG ANGLES, Separator layer made of 100% polyester ROOFTEX V 200, mechanically needle-punched with subsequent heat treatment and calendering with biological resistance to fungi and bacteria with a weight of 200 g/m², floating waterproofing membrane made of synthetic PVC-P FLAGON SV 180 sheet, 1.8 mm thick, dimensionally stabilised with Non-woven geotextile made of 100% polyester ROOFTEX V 200 fibres, mechanically needle-punched with subsequent heat treatment and calendering with biological resistance to fungi and bacteria with a weight of 200 g/m²;English: thermal insulation consisting of extruded polystyrene boards with half-lap joints with a compressive strength of 300 KPa, thermal conductivity Lambda 0.032 W/mºK and a thickness of 80 mm, type SOPRAXPS SL 80; puncture-proof separating layer made of high-tenacity non-woven geotextile based on heat-sealed polypropylene with a tensile strength of 9 kN/m and static puncture resistance (CBR) of 1500 N with a weight of 120 g/m2 TEXXAM 1000, finishing layer with rolled edges with a minimum thickness of 5 cm in 16/32 mm grain size.