One side is reflective metalized silver foil. The other side is also reflective foil coated with a waterproof Black Vinyl Finish
96% Reflectivity, 0.04% Emissivity, 100% vapor barrier
Lowers heating & cooling costs; Improves HVAC system
High tear resistance
Installs quickly and easily with a tape measure, scissors, and staples (DIY)
12INCH WIDE X 10FT LONG
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