Cover for roofs and facades

Abstract

The present invention relates to a cover for roofs and facades made up of prefabricated panels comprising a lower support layer, an intermediate layer of insulating material and an upper water-proof layer, on which overlay parts are arranged. The panels have hooks for holding the overlay parts. The upper water-proof layer prolongs on one side into a fringe, on the opposite side into a flange having a smaller width. The panels are attached by their edges, with the fringe of each panel overlapped on the panel of the next row.

1 . A cover for roofs or facades made up of prefabricated panels having square outline comprising:
 a lower support layer;   an intermediate layer of insulating material;   an upper water-proof layer forming steps parallel to two of the sides of the panel on which overlay parts are fixed,   hooks protruding from the upper layer of each of said panels coinciding with the steps, the hooks arranged at distances coinciding with the dimensions of the overlay parts and with the opening directed towards the preceding step, each for holding the edge of an overlay part, coinciding with the central transverse line thereof;   the upper water-proof layer prolongs on the side of the panel adjacent to the lower step with respect to the intermediate layer into a fringe having a constant width, and prolongs on the opposite side into a longitudinal flange having smaller width which is inclined upwards;   the panels are arranged consecutively attached by their edges with the protruding fringe of each panel overlapped on the panel of the next row of panels in the downward direction of the slope, from the intermediate flange thereof.   
     
     
         2 . The cover according to  claim 1 , wherein the lower layer protrudes on one side and is retracted on the opposite side by the same magnitude in the direction of the slope with respect to the intermediate layer. 
     
     
         3 . The cover according to  claim 1 , wherein the panels have the covering parts, except in an area adjacent to the inclined flange of the upper layer, having a width equal to the opposite protruding fringe of said upper layer. 
     
     
         4 . The cover according to  claim 3 , wherein the panels further lack the covering parts adjacent to the borders of the upper layer perpendicular to the steps of said layer, a waterproofing strip having transverse steps coinciding with the steps of between consecutive panels. 
     
     
         5 . The cover according to  claim 3 , wherein the covering parts protrude from one of the edges of the panel perpendicular to the steps thereof into a longitudinal fringe, whereas on the opposite edge it lacks the covering parts in an area having the same dimensions, the protruding fringe of the covering parts of a panel being overlapped on the area lacking said parts of the adjacent panel of the same line. 
     
     
         6 . The cover according to  claim 1 , wherein the upper layer of the panel prolongs in the direction perpendicular to the slope on one of the edges of the intermediate layer into a portion forming a gutter having a height less than that of said panel, below the bottom of which the lower layer is located, whereas the opposite side of the panel has, from the free surface of the lower layer, a longitudinal step having a cross section approximately equal to the outer cross section of the opposite gutter, the step of a panel being overlapped on the gutter of the adjacent panel of the same row. 
     
     
         7 . The cover according to  claim 6 , wherein the panels have the overlay parts, except in an area adjacent to the inclined flange of the upper layer, having dimensions equal to those of the opposite protruding fringe of said upper layer. 
     
     
         8 . The cover according to  claim 6 , wherein between the aligned gutters belonging to panels of consecutive rows there is arranged a channeled intermediate connecting part.