Abstract: A method for making the core of a door of autoclaved aerated concrete (AAC). A billet of AAC is provided from which slabs are cut to the approximate dimensions of the door core. A reinforcing band is secured about the perimeter of a slab or a pair of slabs sandwiching a reinforcing panel. The thickness of the slab, or the pair of slabs and reinforcing panel, is then sized for the door core as by sanding. The door is finished by applying skins to the core surfaces and trim to the reinforcing band.

Abstract: A method for making the core of a door of autoclaved aerated concrete (AAC). A billet of AAC is provided from which slabs are cut to the approximate dimensions of the door core. A reinforcing band is secured about the perimeter of a slab. The thickness of the slab is then sized for the door core as by sanding. The door is finished by applying skins to the core surfaces and trim to the reinforcing band.

Abstract: A baffle vent is provided for positioning against the underside of a roof to direct air from the soffit area of the roof upwardly over the interior surface of the roof. The baffle vent is an elongated self-supporting unitary structure of sheet-like material having a generally channel-shaped cross-section defining longitudinal side walls joined by a bottom wall. Attachment flanges project from the top edges of the side walls for facilitating attaching the baffle vent to the underside of the roof. An integral longitudinal reinforcing rib is provided in the bottom wall, running along a substantial length of the baffle vent, generally parallel to the side walls, to resist collapsing of the baffle vent if subjected to external forces such as from roof insulation, handling, shipping and the like.