Patent ID: 8431209

Claim:
A metalized composite sheet consisting of: a moisture vapor permeable sheet layer having first and second outer surfaces, the sheet layer comprising at least one of a nonwoven fabric, woven fabric, nonwoven fabric-film laminate, woven fabric-film laminate, moisture vapor permeable film and composites thereof, wherein the first outer surface of the moisture vapor permeable sheet layer is a porous sheet selected from the group consisting of microperforated films, woven fabrics and nonwoven fabrics; and at least one multi-layer coating on said first outer surface of the sheet layer, said multi-layer coating comprising: an intermediate organic coating layer of a composition containing a material selected from the group consisting of organic polymers, organic oligomers and combinations thereof, having a thickness between 0.02 micrometer and 0.5 micrometers deposited on the first outer surface of the moisture vapor permeable sheet layer; a first metal coating layer having a thickness between about 15 nanometers and 200 nanometers deposited on said intermediate organic coating layer; and an outer organic coating layer of a composition containing a material selected from the group consisting of organic polymers, organic oligomers and combinations thereof, having a thickness between 0.2 micrometer and 0.5 micrometers deposited on the metal layer; and wherein the MVTR of the composite sheet is at least about 80% of the MVTR of the sheet layer measured prior to depositing the metal and coating layers.