Patent ID: 8438801

Claim:
Apparatus adapted to be assembled to form a closure support structure, wherein said closure support structure defines an upstanding enclosing wall having a top and extending about a perimeter of an aperture, wherein such aperture extends through a roof of a building, such roof of such building comprising a plurality of elongate metal roof panels which collectively define a plurality of elongate upstanding ribs extending between a ridge and an eave of such building, such ribs defining upstanding seams which have folded over terminal edges of the respective adjacent roof panels, such enclosing wall extending up from such roof and closing off access to such aperture from any side of such aperture, said apparatus comprising: a plurality of closure members, having lengths, and being adapted to be mounted on such roof and about such aperture, said closure members, when assembled to each other on such roof, collectively providing said enclosing wall, the assembled closure members defining an outer perimeter of said enclosing wall which separates a surrounded space, over such aperture, from an ambient environment outside such enclosing wall, said enclosing wall comprising an upstanding outer panel, one or more cavity walls extending from said upstanding outer panel toward such aperture and defining respective cavity portions in the respective said closure members, said upstanding outer panel being disposed outwardly, away from the aperture, relative to such cavity portions, a layer of insulation being generally disposed under a such metal roof panel about such aperture, edge portions of said layer of insulation insulation extending upwardly through such aperture, further comprising a rod holding said layer of insulation in such cavity portion.