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This is double bubble reflective insulation: two layers of polyethylene air bubbles bonded between reflective aluminum polyester film. It reflects up to 97% of radiant heat and is rated R8, so it works as a radiant barrier rather than a bulk-fill insulation. It resists tearing and holds staples, and it cuts with a knife or scissors without the itch of fiberglass. It suits attics, garages, warehouses and other spaces where you want to block radiant heat with a thin, clean-to-handle material. Against fiberglass batts it is far easier to install and doesn't compress, but its R-value comes from trapped air and reflection, so it needs an air gap to perform and won't match thick batts for conductive heat loss.
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This reflective foil insulation has two layers of polyethylene air bubbles bonded between two layers of reflective aluminum polyester film. It is a lightweight, durable thermal barrier rated R8. It resists tearing and can take staples during installation without damage.
The barrier reflects up to 97% of radiant heat and emits less than 3%. It does not compress, collapse or disintegrate over time. It is unaffected by moisture and humidity, which helps inhibit condensation and resist mold, mildew, insects and rodent nesting.
It cuts with a utility knife or scissors and attaches with staples, nails or adhesive. It has no itchy fibers and makes no mess. It can be used to weatherproof attics, garages, warehouses and other spaces.
