Patent ID: 8039079

Claim:
A segmented insulative device comprising: a first layer and a second layer each formed from a flexible material; an inner layer of flexible insulation held between said first and second layers by way of stitching, said stitching forming a cut-site for separating said segmented insulative device into multiple sections; one or more fastening mechanisms connected to said first layer, said one or more fastening mechanisms for securing one or more of said multiple sections to a component of a thermal distribution system, said first layer is a laminate, said laminate includes an inside fabric layer and an outside low permeance layer, said inside fabric layer of said first layer, said inner layer of flexible insulation, and said second layer combine to form a flexible composite through which said stitching is arranged in a grid pattern formed by groupings of closely spaced parallel seams which create segmenting of said device, and said stitching is precluded from penetrating both said outside low permeance layer and said one or more fastening mechanisms such that low permeance characteristics of said device is not compromised by said stitching; and wherein at least one of said first or second layers and said one or more fastening mechanisms are fabricated from a material having low permeance sufficient to substantially preclude water vapor penetration there through.