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Reflectix is a double-sided reflective foil bonded to two layers of polyethylene bubbles, sold as a 24-inch-wide roll covering 100 square feet. It blocks radiant heat rather than slowing conductive heat, so it works best in attics, on garage doors, behind knee walls and over floors, where it reflects heat back instead of absorbing it. It is thin and easy to cut with scissors or a utility knife, which makes it a common DIY pick over rigid foam board or fiberglass batts for quick radiant-barrier jobs. Reviewers like the clean handling and no-itch install; the trade-off is that its stated reflective rating depends heavily on an air gap and correct installation, and it does little as a stand-alone thermal barrier.
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Lowest price we've seen: $64.99 on Nov 11 at Ace Hardware. Tracked across 1 store since Nov 11.
Owners use it for garage doors, attics and crawl spaces and report noticeable heat reduction when it is installed with an air gap. Most praise how easy it is to cut and handle; complaints center on thin foil that tears and on results falling short when it is pressed flat against a surface.
This is a reflective radiant barrier insulation roll for floor and wall use. It is built from two 94 percent reflective layers of film bonded to two internal layers of heavy gauge polyethylene bubbles.
R-value and radiant barrier benefits vary by application. The product has a reflective rating of up to 14.3. A single bubble configuration is also available for special applications.
