Heat Insulation sheet it is a commercial grade Foil-Scrim-Kraft Facing with 3-way scrim and 60gsm kraft, most commonly used as a facing for duct wrap insulation, also suitable for other insulation applications where a general use vapor retardant is needed. It is also a good choice for radiant barrier applications because of its low emissivity. Available Roll Width: 1.0m/1.2m/1.25m/1.30m/1.35m