Patent ID: 8065841

Claim:
A roof panel for use in constructing buildings, said panel comprising: a) an exterior sheet and an intermediate sheet subjacent said exterior sheet, said sheets secured to one another by a first set of spaced apart vertical support members, each of said vertical support members extending, in parallel with one another, from an eave first edge to a ridge beam second edge of said panel, and wherein said sheets, in combination with said first set of vertical support members, form a series of upper chambers therebetween; b) an interior sheet subjacent said intermediate sheet, said intermediate sheet secured to said interior sheet by a second set of spaced apart vertical support members, each of said second set of vertical support members extending, in parallel with one another, from said eave first panel edge to said ridge beam second panel edge, and wherein said sheets, in combination with said second set of vertical support members, form a series of lower chambers therebetween; and c) said eave edge and said ridge beam edge having a sufficient opening to allow heated air to flow unidirectionally therethrough within the panel; and wherein said upper air chamber has a continually tapered configuration beginning at said eave edge and increasing to said ridge beam edge of said panel.