Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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This is a 48-inch by 10-foot roll of double-sided reflective foil bubble wrap, sold as a double pack for 40 sq ft total. It blocks radiant heat rather than slowing conductive heat, so its R-value runs about R-1.1 in a wall cavity and up to R-4.2 with an air gap on one side. That makes it a poor substitute for fiberglass batts in a stud wall, but a good add-on over them or a wrap for ducts, garage doors and attic rafters. Owners like the clean handling and no-itch install; reviewers warn that compressing it or laying it flat against a surface kills most of its performance.
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Lowest price we've seen: $23.39 on Nov 9 at Tractor Supply Co. Tracked across 6 stores since Nov 9.
Buyers use it mostly as an attic radiant barrier and duct wrap and report cooler rooms and lower attic heat. The recurring complaint is that people expect wall-grade R-value and get far less without an air gap.
This Reflectix roll is a reflective radiant barrier insulation for use in walls. It has an R-value range of R-1.1 to R-4.2. Each roll measures 48 inches wide by 10 feet long and covers 40 square feet.
The insulation can be installed at temperatures from -60 to +180 F. The product is sold as a double pack of the Reflectix BP48010.
