Prefabricated thermal insulating system for buildings

A building structure comprising means for defining a plurality of load bearing walls, floors, ceiling and like building elements, means associated with at least selected ones of said building elements for defining at least one opening therein, said selected one building element being of a predetermined peripheral size and shape, said one opening being of a predetermined size and shape, means for forming an outer hollow panel of a size and shape corresponding to the predetermined size and shape of said selected one building element, means for forming an opening in said outer hollow panel corresponding generally in size and shape to said one opening, said outer hollow panel being disposed contiguous said selected one building element with the respective openings thereof being in general registry, a plurality of hollow insulating inner panels each defining an interior chamber under negative pressure, said inner panels being housed within said outer hollow panel, in generally side-by-side spaced relationship, means between said inner and outer panels for contacting a limited exterior surface area of said inner panels for supporting said inner panels in generally spaced relationship to said outer panel, means within said outer panel and normally spaced from the exterior surface of said inner panels for contacting a limited exterior surface area of said inner panels only upon said first-mentioned contacting means becoming inoperative, and said second-mentioned contacting means being an elongated pin-like element of relatively small cross-sectional configuration whereby thermal conduction transfer therethrough is substantially negligible.