THIS IS NOT A CHEAP POLY-AIR BUBBLE REFLECTIVE INSULATION, WE HAVE A SUPERIOR QUALITY REFLECTIVE FOAM CORE INSULATION, FOAM CORE RADIANT BARRIER, INDUSTRIAL AND COMMERCIAL GRADE!!! WHERE TO INSULATE? Windows Insulation, Attics, Ceilings, Walls, Garage Door, Metal Roof, Steel Buildings, POLE BARNS, Concrete Floor, House Wrap, RV, TRUCK, CAMPER, CAR insulation, Radiant Heat in a Concrete Floor, Radiant Heating Under a Wood Floor, Cathedral Ceiling, Water Heater Tank, Water Pipe, Air Duct, Reflective Ceiling System, Behind a Hot Water Radiator, Crawl Space, In Ground Swimming Pools, Above Ground Swimming Pools, Hot tubs, Shed, Fish & Hunting Shelter, tents, Cooling Room, Cold Chamber or Wine Cellar, Concrete Block Wall, Cavity Wall for Metallic Studs in Commercial Buildings, Foundation Wall.