Laminate wall structure
AssigneeNational Shelter Products, Inc.
InventorJohn Cahill
Life of this patent
Estimating the term…
Abstract
A laminate wall structure which can be used as an exterior wall in manufactured housing and site built construction is made up of a low density layer having a density of from about one-half pound to three pounds per cubic foot, a second, reinforcing layer laminated to the low density layer and, optionally, a cellulosic layer laminated to the second, reinforcing layer. The low density layer is preferably a foamed polymer layer, the second, reinforcing layer is a polymer fabric, a biaxially oriented polymeric film or a fiberglass reinforced material and the cellulosic layer can be impregnated with an adhesive and/or resin in order to strengthen the laminate structure. This laminate wall structure has a low weight and yet is strong enough to meet wind zone wall diaphragm requirements for housing construction.
Claims38
In a wall structure that is contained in a building structure exposed to transverse wind loading, the improvement comprising said wall structure containing a first layer having a density of about 0.5-3 lb./ft.3 and a second, reinforcing layer of a woven polymer fabric directly bonded to the first layer.
In a wall structure that is contained in a building structure exposed to transverse wind loading, the improvement comprising said wall structure containing a first layer having a density of about 0.5-3 lb./ft.3, a second, reinforcing layer selected from the group consisting of a polymer fabric and a biaxially oriented polymeric film directly bonded to the first layer and a cellulosic layer selected from the group consisting of paper, paper fiberboard, plastic-coated paper and plastic-coated paper fiberboard laminated to the second, reinforcing layer.
Dependencies are inferred from the claim text.