Patent ID: 8407958

Claim:
A roof assembly of a building, the roof assembly comprising: a first waterproofing membrane including at least one first waterproofing membrane portion and at least one second waterproofing membrane portion, wherein the at least one first waterproofing membrane portion is configured for covering a roof of a building, the roof terminating at a distinct edge in proximity to a vertical exterior surface of a wall of the building; at least one stiff member, disposed upon said first waterproofing membrane portion such that a first surface of said stiff member is adjacent said first waterproofing membrane portion, said second waterproofing membrane portion wrapping back upon said first waterproofing membrane portion to be disposed adjacent a surface of said stiff member that is opposite said first surface, said first waterproofing membrane portion and said second waterproofing membrane portion enclosing said stiff member along at least three sides of said stiff member, a second waterproofing membrane exposed at a top surface to an ambient environment of the roof and including a roof portion and an edge portion, said roof portion being disposed over said second waterproofing membrane portion and said stiff member, said roof portion being welded or glued to said second waterproofing membrane portion at a first attachment point and welded or glued to said first waterproofing membrane portion a second attachment points, said first attachment point and said second attachment point both being disposed at an underside of said roof portion only, wherein said first attachment point and said second attachment point are separated from each other via areas of said underside of said roof portion that are absent any welding or gluing to said second waterproofing membrane portion or said first waterproofing membrane, wherein said edge portion of said second waterproofing membrane extends over said edge of said roof in a downward direction perpendicular to said roof portion such that said edge portion runs downwardly along said vertical exterior surface of the wall of the building, wherein attachment of said roof portion to said second waterproofing membrane portion and said first waterproofing membrane portion at said first and second attachment points creates an enclosed member cavity that fully encapsulates said stiff member, and wherein the first and second waterproofing membranes are more flexible and resilient than the stiff member.