99% Reflective Solid White / Foil Vapor Barrier – Optimal Thermal Performance ASTM Class 1 / Class A Fire Rated Material Strong and Durable / Radiant and Vapor Barrier – All in One One side is a White Vinyl Finish / Other side is a Foil Finish 1/4 thick True Double Bubble 6ft Goods (total length 100ft)(WE SHIP 2 ROLLS OF 6FT X 50FT) Additional Details ------------------------------ Product description: 99% Reflective Solid White / Foil Vapor Barrier – Optimal Thermal Performance ASTM Class 1 / Class A Fire Rated Material Strong and Durable / Radiant and Vapor Barrier – All in One One side is a White Vinyl Finish / Other side is a Foil Finish 1/4 thick True Double Bubble 6ft Goods (total length 100ft)(WE SHIP 2 ROLLS OF 6FT X 50FT)