250sqft (4ft Wide) of NASA TECH Commercial Grade Solid Platinum Non Perforated No Tear Green Energy Radiant Barrier Reflective Insulation Solar Attic Foil Roof Attic House Wrap SCIF RIFD Solid Non Perforated No Tear Commercial Grade Super Strong Radiant Vapor Barrier 250sqft 4ft wide 96-97% Reflectivity, 3-4% Emissivity, 100% Moisture & Vapor Barrier Lowers heating & cooling costs / Extremely high tear resistance, Tensile and Elongation (ASTM D882) = 10,890 PSI Made In USA