Abstract This invention relates to a flat roofing. The flat roofing comprises: a lower support able to be submitted in use to deformations, an upper sealant covering, a disengagement sheet made of an elastic flexible and deformable material and arranged between said lower support and said sealant covering, lower adhesion zones connecting said disengagement sheet with the lower adjacent element of the roofing, in particular with said lower support, said lower adhesion zones being able to undergo horizontal relative displacements dependant on the deformations of said lower support, upper adhesion zones connecting said disengagement sheet with the upper adjacent element of the roofing, in particular with said upper sealant covering, and alternating with respect to said lower adhesion zones, and means for maintaining horizontally immobile said upper adhesion zones to one another. In said flat roofing the deformations of said under support have no effect on the said upper sealant covering.
A flat roofing comprising: a lower support able to be submitted in use to deformations an upper sealant covering a disengagement sheet made of an elastic flexible and deformable material and arranged between said lower support and said upper sealant covering lower adhesion zones connecting said disengagement sheet with the lower adjacent element of the roofing, in particular with said lower support, said lower adhesion zones being able to undergo horizontal relative displacements dependant on the deformations of said lower support upper adhesion zones connecting said disengagement sheet with the upper adjacent element of the roofing, in particular with said upper sealant covering, and alternating with respect to said lower adhesion zones and a horizontally undeformable structural sheet adhesively associated with the upper adhesion zones, preventing relative horizontal movement of said upper adhesion zones and effect on said upper sealant covering by deformations of said lower support.
Claim 2
Dependent Claim
147 words
A flat roofing comprising: a lower support able to be submitted in use to deformations an upper sealant covering a disengagement sheet made of an elastic flexible and deformable material and arranged between said lower support and said upper sealant covering lower adhesion zones connecting said disengagement sheet with the lower adjacent element of the roofing, in particular with said lower support, said lower adhesion zones being able to undergo horizontal relative displacements dependant on the deformations of said lower support upper adhesion zones connecting said disengagement sheet with the upper adjacent element of the roofing, in particular with said upper sealant covering, and alternating with respect to said lower adhesion zones and a horizontally undeformable structural sheet adhesively associated with the upper adhesion zones, preventing relative horizontal movement of said upper adhesion zones and effect on said upper sealant covering by deformations of said lower support.
Claim 3
Dependent Claim
26 words
A flat roofing as claimed in claim 1 wherein said disengagement sheet is a sheet of expanded rubber having a thickness of 2 to 4 mm.
Claim 4
Dependent Claim
23 words
A flat roofing as claimed in claim 1 wherein said lower and upper adhesion zones comprise adhesion studs distributed over said disengagement sheet.
Claim 5
Dependent Claim
21 words
A flat roofing as claimed in claim 3 wherein said horizontally undeformable structural sheet comprises a membrane reinforced with glass gauze.