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; Improved single-layer waterproofing membrane adhered to the support with EMUFAL PRIMER asphalt emulsion with a minimum application of 300 gr./m2, APP plastomeric auxiliary sheet with fibreglass felt (FV) reinforcement with a flexibility at low temperatures ≤ -10ºC type MOPLY N PLUS FV 3 kg (LA-30-FV according to UNE 104410-2013), upper sheet fully adhered to the lower sheet of APP plastomeric LBM with reinforced and stabilised polyester felt (FP) reinforcement with a flexibility at low temperatures ≤ -15ºC type MORTERPLAS FP 4 kg (LBM-40-FP according to UNE 104410-2013), separating layer of 100% polyester fibre non-woven geotextile, with a tensile strength of 4.89 kN/m and puncture resistance of 100% polyester fibres, with a tensile strength of 4.89 kN/m and a puncture resistance of 100% polyester fibres, with a tensile strength ... static (CBR) of 820 N with a weight of 300 grs/m2 ROOFTEX V 300;English: thermal insulation layer made of extruded polystyrene boards measuring 1250x600 mm with half-stack joints with a compressive strength of 300 KPa, Lambda thermal conductivity 0.032 W/mºK according to EN 13164 and a thickness of 60 mm, type SOPRAXPS SL 60; puncture-proof separating layer made of high-tenacity non-woven geotextile based on heat-welded polypropylene with a tensile strength of 9 kN/m and a static puncture resistance (CBR) of 1500 N with a weight of 120 g/m2 TEXXAM 1000; subsequent finishing layer with tiles received with cement mortar and river sand, after a compression layer.