Patent ID: 8176699
Filing Date: 2012-05-15
Classification: E04B,E04D,E04H

Abstract:
1. A roof system comprising: a ridge board; a plurality of vertically disposed trusses, each truss having angled rafters and a joist; upper TboxTrusses functioning as the rafters, each upper TboxTruss having a planar plate with a hollow box depending downwardly there from, each upper TboxTruss being fabricated of metal with the box having a rectangular cross sectional configuration; an interior sheet of a fire resistant fabric sheet material above the upper TboxTrusses; an exterior sheet of the fire resistant fabric sheet material below the upper TboxTrusses; insulation material located between the interior and exterior sheets and bounded by adjacent hollow boxes; lower TboxTrusses functioning as joists, each lower TboxTruss having a planar plate with a lower face and an upwardly facing upper face, each lower TboxTruss having a hollow box extending upwardly from the upper face of an associated planar plate, each lower TboxTruss being fabricated of metal with the box having a rectangular cross sectional configuration, each of the trusses including the upper and lower TboxTrusses being of a welded one-piece construction.