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.This stuff works
Would RecommendBought this for a small shed that was not insulated and temps reaching around 116f in the peak sun. Installed this and instantly kept temps down minimum of 10degrees cooler. Very impressed. Used staple gun and duct seam tape to seal the seams. Definitely recommend and worth the cost.
Great Product.
Verified Purchaser
Works well
Used to insulate shed. Easy to work with.
Verified Purchaser
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.