Abstract: A window insulation system comprises a panel formed of a rigid foam insulation board dimensioned less than the interior casing dimensions of a window. To the periphery of the board, a highly compressible foam strip is secured by a contact type adhesive. The foam strip comprises a laminate of foam webs having an intermediate vapor impermeable membrane of aluminized film. The membrane lies in a plane parallel to the plane of the interior face of the board. A flexible layer completely covers the foam strip and extends over opposite faces of the board to reduce tensive stress at the joint between the strip and the board during insertion or removal of the panel from the casing. The flexible layer may comprise a decorative fabric which completely covers the interior face of the board.

Abstract: A solar collector assembly wherein a frame surrounds a heat absorber and a flexible glazing spans the frame, wherein the frame includes a pivotable elongated member which secures and tensions the glazing such that the glazing remains under substantially constant tension notwithstanding shrinkage.

Abstract: A composite construction panel and process for its fabrication. The contruction panel has a lightweight cellular insulation core adapted for receiving imbedded electrical conduits and further includes a cementatious fireproofing layer. The panel is completely clad within glass fiber reinforced concrete. In addition, reinforcing steel can be incorporated into the concrete encasement. Adjacent panels are designed for bolted and/or adhesive interconnection with registration of the respective conduits thus forming a continuous internal conduit network. The method of fabrication includes a molding operation wherein a rigid foam core is formed from a flowable urethane composition, the core is bonded to the fireproofing layer and then enveloped within a cement matrix having glass fibers. Mold inserts are utilized to provide void areas such as for window and door openings, bolt connection pockets and utility box placement. The panel can be manufactured in planar and simple and compound curve shapes.