Roof construction with inlet and outlet venting means

Claim 1

A building construction, comprising an exterior vertical wall, a ceiling supported by the wall, a roof supported by the wall and including a series of spaced rafters and a roof deck supported by the rafters, air inlet means in the roof and disposed outwardly of the exterior wall, air outlet means in said roof and disposed inwardly of the exterior wall, insulating means supported by the ceiling, an insulating member located between adjacent rafters, each insulating member having a lower surface resting on the ceiling and having an upwardly and inwardly extending inclined upper surface bearing against the undersurface of the roof deck and having an inner end surface connecting the inner end of the lower surface and the inner end of said inclined surface, said insulating means abutting said inner end surface channel means in said member adjacent said upper surface and defining a series of channels for the flow of air along the undersurface of the roof deck in a direction from said air inlet means to the air outlet means, and flange means disposed on the outer end of said insulating member and extending downwardly from said lower surface, said flange means disposed in engagement with the outer surface of said exterior wall to position the insulating member longitudinally between said adjacent rafters.