Radiant Heat Barrier: The metallic outer surface reflects up to 95%–97% of radiant energy, making it highly effective at blocking solar heat when installed under roofs, ceilings, or on windows.Moisture & Vapor Protection: It serves as an effective vapor barrier that prevents condensation and blocks humidity from seeping into building structures.Versatile Applications: This lightweight material is widely utilized for roofing, attic lining, wall wrapping, automotive heat/sound insulation, and insulating camper vans or RV windows.Easy Installation: Because it is flexible, it can be easily measured, cut with household scissors, and secured with staples, tape, or spray adhesives