SmartSHIELD- 5mm Reflective Insulation roll – PURE ALUMINUM.Foam Core Radiant Barrier, Thermal Insulation ShieldCommercial Grade!!! ALL IN ONE PRODUCT: Insulation + Radiant Barrier + Vapor Barrier + Sound Barrier + Air Barrier 48″ x 50′ ADDED VALUES: RADIANT BARRIER – reflects 97% of radiant energy.VAPOR BARRIER – prevents condensation, unaffected by humidity and moisture, mold resistant.SOUND BARRIER – excellent soundproofing material. SUPREME QUALITY – 5mm closed-cell polyethylene foam, laminated with 99% aluminum foil on both sides.FIRE RATE – Fire rate Class 1 / Class A, NON TOXIC – will not irritate skin, eye or throat. Non allergic.EASY TO WORK WITH – Easy to install, easy to cut, strong but lightweight.SAVE MONEY- effectively low the amount of heat transferred into the home in the summer an out of the home in the winter. Save big on your utility bill. THIS IS NOT A CHEAP DOUBLE BUBBLE REFLECTIVE INSULATION, WE HAVE A SUPREME QUALITY REFLECTIVE FOAM CORE INSULATION WITH PURE ALUMINUM ON BOTH SIDES, FOAM CORE RADIANT BARRIER, COMMERCIAL GRADE!!! WHERE TO INSULATE? Steel Buildings / Metal Buildings,POLE BARNS, Air Duct insulation wrap,Attics, Ceilings,Walls, Roofing, Garage door insulation,Concrete Floor, Radiant Heat in a Concrete Floor, Radiant Heating Under a Wood Floor, Cathedral Ceiling, Water Heater Tank, Radon Barrier, Water Pipe and Air Duct,Reflective Ceiling System,Behind a Hot Water Radiator, Crawl Space, In Ground Swimming Pools, Cooling Room,Cold Chamber or Wine Cellar, Shed, Fish & Hunting Shelter, Concrete Block Wall,Cavity Wall for Metallic Studs in Commercial Buildings, Foundation Wall, Above Ground Swimming Pools,Quanset Hut, House Wrap.HEAVY DUTY PRODUCT THAT YOU WAS LOOKING FOR!!!CUSTOMERS SATISFACTION GUARANTEED!!!