Three prototype designs for an exterior-mounted, interior-operated, movable insulation system

Design, construction, and preliminary testing of three exterior-mounted, interior-operated, movable window insulation systems are described. Two of the systems are hinged insulated shutter systems and the third is a sliding shutter system. The advantages of such systems are discussed. Development, schematics, and operation of the prototype systems are described. The thermal performance of the prototype shutters is analyzed. A preliminary market assessment study is reported. The prototype fabrication and test plan and estimated costs of the proposed designs are presented.