Ratings & Reviews for Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 50-sq ft ( 24-in W x 25-ft L ) Individual pack
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this reflective insulation for exceptional heat reduction, with many reporting garage temperature drops of 6-15 degrees during summer. Reviewers consistently highlight its ease of installation—lightweight, flexible design requires no tools, with some completing projects in under 20 minutes. Users appreciate its versatility across garages, RVs, windows, skylights, ductwork, and water heaters. Most find it highly effective as a radiant barrier for reflecting heat away from living spaces and improving air conditioning efficiency. A few clarify it functions as a heat reflector rather than traditional insulation, and some note mixed results on garage doors, but overall customers strongly recommend it for thermal management.
Customer review summary generated by AI, including incentivized reviews.Window covering
This is the best I've found for covering my windows to keep the heat out.
Verified Purchaser
the very best
Would Recommendputting this in made a twenty degree temperature difference.
Verified Purchaser
Great stuff
Would RecommendThis is great stuff and good value
Make sure you buy correct size!
Would RecommendGreat for split level homes on duct work. Stopped sweating ducts.
Verified Purchaser
Easy/Helpful
easy to use, very helpful This cuts easily with scissors to fit window space. Also was even easy to custom fit to a a/c hose with bends. Taping with just package tape works but should also be fine with duct tape and the Real tape pros use on foil ductwork.
Verified Purchaser