Cover 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; Two-layer waterproofing membrane ADHERED to the support after asphalt primer of at least 300 gr./m2 type EMUFAL PRIMER formed by SBS elastomeric LBM with fiberglass felt reinforcement (FV) with a flexibility at low tª ≤ -15ºC type MORTERPLAS SBS FV 4 kg (LBM-40-FV according to UNE 104410:2013), upper sheet totally adhered to the lower sheet of LBM SBS elastomeric LBM with reinforced and stabilized polyester felt reinforcement (FP) with a flexibility at low tª ≤ -15ºC type MORTERPLAS SBS FP 4 kg (LBM-40-FP according to UNE 104410:2013), separating layer of high tenacity non-woven geotextile based on thermo-welded polypropylene with a tensile strength of 6.5 kN/m and static punching shear (CBR) of 1100 N with a weight of 90 grs/m2 TEXXAM 700;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 12.5 kN/m and static puncture resistance (CBR) of 2250 N with a weight of 120 g/m2 TEXXAM 1500, finishing layer with rolled edges with a minimum thickness of 5 cm in 16/32 mm grain size.