Patent ID: 8567144

Claim:
A low cost roof system comprising: a roof deck including overlapping flutes; a sealant material disposed only at locations on the roof deck that would otherwise be fluid transmissive, said locations consisting of: areas created by penetration of a fastener through said roof deck and into a structural carrying member of the roof deck, said sealant material surrounding an upper extent of said fastener in a manner that substantially fills said overlapping flutes of said roof deck, and areas created by at least one of an opening defined by an upper extent of a C-channel, a closed end of said C-channel, a lower extent of said C-channel, and portions of a weight board, insulation material, and the roof deck disposed in proximity to an open end of said C-channel, and an opening defined by at least one edge nailer and portions of said weight board, said insulation material, the roof deck and an additional nailer disposed in proximity to said edge nailer, said additional nailer being disposed upwardly adjacent of said weight board; wherein said opening defined by said C-channel and said opening defined by said edge nailer are both substantially enclosed, filled with said sealant material such that each defining element of each of said openings is in contact with said sealant material, and disposed adjacent to an edge of the roof; wherein said insulation is upwardly adjacent the roof deck, wherein at least a portion of said insulation is disposed upwardly adjacent of said sealant material, wherein at least a portion of said sealant material is disposed upwardly of and in contact with said upper extent of said fastener, and wherein at least a portion of said insulation is disposed upwardly of said upper extent of said fastener; wherein said weight board is disposed upwardly adjacent the insulation; and a waterproofing membrane upwardly adjacent the weight board.