Ratings & Reviews for Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 33.3-sq ft ( 16-in W x 25-ft L ) Individual pack
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this insulation for exceptional ease of installation and versatility. Reviewers consistently note it cuts easily, requires no special tools, and conforms to irregular surfaces, making it ideal for DIY projects in garages, RVs, camper windows, and ductwork. Many highlight its effectiveness as a radiant heat barrier and lightweight flexibility. A few note it functions as a radiant barrier rather than traditional bulk insulation, clarifying expectations about thermal performance. Overall, customers consider it a reliable, multi-purpose solution.
Customer review summary generated by AI, including incentivized reviews.Easy to install with exterior tape to hold it
Would RecommendFlexible and affordable easy to install. If a heavier exterior grade was availability I would pay more and bought it.
Verified Purchaser
Reflective Insulation
Would RecommendThis flexible and versatile product was easy to manipulate and install especially in small, hard to reach spaces.
Verified Purchaser
Works.
Would RecommendGood stuff. Seems to work. Thank you.
Verified Purchaser
Quality product
Would RecommendQuality product
Verified Purchaser
Good stuff
Would RecommendI bought it mainly to insulate the exhaust duct for a couple of portable air conditioners. It is really easy to work with since it can be cut with scissors to fit any size or shape.
Verified Purchaser
Does what it is supposed to do and easy to use
Would RecommendEasy to work with
Verified Purchaser
Coldtub insulation
Would RecommendPerformed as expected.
Verified Purchaser
Nice
Would RecommendNice easy to use
Verified Purchaser
Easy heat control
Would RecommendIt’s the easiest solution to heat radiation control, basic principles of foil-air-foil stop heat both ways, you still need to have a way to disípate or vent that reflected heat away, forced air or convection. I use it inside electronic control boxes that are exposed to direct sunlight with a fan inside, equipment is at least 30% cooler than just a box with a fan
Verified Purchaser
Great Insulation product.
Would RecommendThis insulation is great I used to insulate my garage door it is awesome.
Verified Purchaser
plan on more tape than you 'think' you might need
Would RecommendWe had some duct work done and the installed suggested wrapping the new ducting to keep heating/cooling within and not leaching out. It was a two-person job to cut make the initial piece in place and then wrap the duct, but it went fine (we had done it before).
Verified Purchaser
Seems to be a good product
Would RecommendGood insulation and easy to install
Verified Purchaser