Abstract: An improved double skin metal wall liner for a building formed from spaced-apart structural liner panels and interposed non-structural liner panels. The non-structural liner panels are formed from sheet metal having less thickness than the structural liner panels. Both panels are secured to a building framework and to each other. The outboard ends of the structural liner panels comprise mounting surfaces for fastening an outer facing wall for the building.

Abstract: A system for double glazing existing panes in windows or the like in which a pane of translucent or lightaltering material is cut to the shape of the exposed surface of an existing windowpane within its sash. The additional pane is secured to the existing pane through the use of magnetically intermateable spacer strips which are secured to the added and existing panes around their outer periphery by means of an adhesive. The intermateable spacer strips are of a thickness which allows for separation of the two panes by a sufficient distance to create an air space therebetween to enhance the insulating properties of the structure. A thin flexible strip of decorative material is secured to the surface of the attachable pane opposite the existing pane along its periphery so as to overlap the adhesive on the opposite face of the attached pane while extending outward to overlap the inside edges of the sash and thereby additionally seal and insulate the area around the outer periphery of the attached pane.

Abstract: A method of constructing swimming pools is described which includes spraying a mass of foamable plastic against the exposed pool wall surface of an assembled pool which plastic material adheres thereto and hardens, forming a dense resilient foam mass with a hardened exterior skin facing toward the interior of the pool, and applying an ultraviolet protective covering to the skin to improve its resistance to light and moisture.