Abstract: A combined fastener and tension indicator means employed for securing the ends of a band having undulations formed therein. The band is employed for retaining insulation panels which have been applied over the exterior surface of a structure to be insulated thereby. The structure to be insulated is caused to expand and/or contract depending upon the surrounding atmospheric conditions. A tension is applied to the band to insure the band always being in close contact with the exterior surface of the structure to which the panels have been applied. The undulations formed in the band together with the amount of tension applied to the band will permit for the structure to which the panels have been applied to expand and/or contract while still retaining the insulation panels in close contact with the exterior surface of the structure to which the panels have been applied.

Abstract: A structural insulating panel particularly adapted for use in static structures for containing or conveying a body of fluid at a temperature elevated with respect to the surrounding environment is disclosed. The panel comprises a supporting member from which is hung an inside material retaining sheet having an angled portion along a lower edge forming a shelf upon which is supported a block of insulating material. A metal facing sheet is positioned on the outside of the insulating material and spaced from the inside material retaining sheet by a plurality of tubular spacer means while protecting the interstitial block of insulating material. The panel is secured together as a working unit by a plurality of screw-threaded fasteners threaded onto studs extending from the horizontal supporting member. A plurality of uniformly dimensioned panels is used in combination with an underlying framework to construct a desired structure with a minimum amount of skilled labor.