Double Bubble Reflective Insulation (White/Foil) 6'x125' - 750 sq ftEcoFoil Double Bubble Foil Insulation is engineered for efficient temperature control and moisture protection in pole barns, metal buildings, basements, crawl spaces, and storage units. Its dual bubble core creates a built in thermal break that reduces heat transfer and helps prevent condensation in demanding climates. The white interior surface delivers a cleaner, more finished appearance wherever its installed. Reliable Radiant Barrier and Vapor