Flat non-transitable roof meeting, ventilated with sump. Asphaltic sheeting

Flat non-transitable roof meeting, ventilated, self-protected, conventional type with vertical sump outlet, performing a rebate in the support around the sump, in which the waterproofing formed by: piece of reinforcement of modified asphalt sheet with elastomer SBS, LBM(SBS)-40-FP, with non-woven polyester felt armature of 160 g/m², of unprotected surface, totally adhered to the support with torch, previous priming with anionic asphalt emulsion with EB type charges, and placement of EPDM rubber sump, of vertical outlet, of 80 mm diameter, with flat EPDM rubber grille, entirely adhered to the previous reinforcement piece with torch.