Thermal insulation

Claim 1

AN IMPROVED THERMAL INSOLATION WHICH COMPRISES A PLURALITY OF INSULATING SHEETS AT LEAST ONE OF WHICH IS ALUMINUM FOIL, THE SHEETS BEING RELATIVELY NARROW AND OF INDEFINITE LENGTH AND SUPERPOSED ONE OVER THE OTHER, SAID SHEETS CONSISTING OF A FRONT SHEET, AT LEAST ONE INTERMEDIATE SHEETS, AND A BACK SHEET, EACH OF SAID INSULATING SHEETS HAVING A FLANGED EDGE PORTION ON EACH OF THE EDGES THEREOF, A PLURALITY OF RELATIVELY STIFF EDGE STRIPS OF DIFFERENT WIDTHS, ONE OF EACH OF SAID EDGE STRIPS EXTENDING ALONG AND ATTACHED TO EACH OF THE FLANGED EDGE PORTIONS OF THE INSULATING SHEETS, THE NARROWEST EDGE STRIPS BEING ATTACHED DIRECTELY TO THE FRONT SHEET, THE WIDEST EDGE STRIPS BEING ATTACHED DIRECTLY TO THE BACK SHEET, THE EDGE STRIPS OF INTERMEDIATE WIDTH BEING ATTACHED TO AN INTERMEDIATE SHEET AND TO THE BACK SHEET, THE FLANGED EDGE PORTIONS OF THE INSULATING SHEETS AND THE EDGE STRIPS BEING CONENCTED TOGETHER AND FORMING ATTACHMENT EDGE PORTIONS, THE INSULATING SHEETS BEING OF DIFFERENT WIDTHS, THE BACK SHEET BEING WIDEST, THE INTERMEDIATE SHEET BEING NARROWER AND THE FRONT SHEET BEING THE NARROWEST, THE ATTACHMENT EDGE PORTIONS BEING ARRANGED TO LIE CLOSE TO FRAMING STRUCTURES, WHEREBY THE STIFF EDGE STRIPS RESILIENTLY HOLD THEIR RESPECTIVE ATTACED INSULATING SHEETS TAUT, SAID INSULATION BEING ADAPTABLE TO BEING ROLLED INTO PACKAGE FORM AND WHEN UNROLLED AND THE EDGE STRIPS ARE HELD APART AND PARALLEL TO EACH OTHER THE INSULATING SHEETS ARE HELD SPACED APART.