24 inch x 10 feet, square edge roll double bubble foil both sides, reflective insulation, 5/16 inch thick with two outer layers of aluminum foil, each foil layer is bonded to a tough layer of polyethylene for strength, reflects up to 97 percent of radiant.
R-valves range from R-3.7 to R-21 depending on app
Inhibits condensation and is class A-class 1 fire
Fiber free product not requiring protective clothi
Small roll, for quick projects, that is easy to ha