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R- 21 Attic Wall Unfaced Reflective Roll Insulation 400-sq ft ( 48-in W x 100-ft L ) Individual pack

Ratings & Reviews for Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 400-sq ft ( 48-in W x 100-ft L ) Individual pack

4.6
136
Review
 4.6 out of 5
136 Reviews


96% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The reflective insulation product is widely praised for being easy to work with, install, and cut to fit. Many customers report significant improvements in temperature regulation, with the insulation helping to keep spaces cooler in the summer and warmer in the winter. The product is described as versatile and suitable for use in a variety of applications. Customers appreciate the lightweight and flexible nature of the insulation, as well as the fact that it does not cause irritation like traditional fiberglass insulation. A few customers noted minor issues, but the vast majority of reviews highlight the effectiveness and value of this product.

Customer review summary generated by AI, including incentivized reviews.
136 Customer Reviews

Cut First

Product is exactly as described.... it is similar to a thick version of double-sided aluminum foil. One piece of advice is to cut the roll into 20-25 foot strips before taking the product into the attic. Much easier to unroll and cut the product on the driveway as compared to inside the atticl

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Worth every penny

Would Recommend

We put this on our windows in our rv for the hot desert sun in CA and really helps keep it cool inside

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Great installation

Would Recommend

I love this double sided reflective installation I’ve been putting it in my crawl space under the floor when everybody else paid 4 or 5 times what they normally pay for gas to heat their house because of gas prices I still paid what I usually pay now that summer is coming and I don’t have air conditioning I won’t sweat my butt off we just had 90 degrees weather and it was about 74 inside my house I love this stuff who came up with this idea is a Genius the way it could be better if it only in...

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Easy application

Would Recommend

Easy to affix to walls, used a staple gun and some firring inside of our knee walls. Only time will tell if it works, but it was cheaper and easier than doing drywall in a small space

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it is not 100ft

I got one big roll in the box. I needed an exact 100ft, BUT it was 97ft. I have to buy some extra.

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Home delivery

Would Recommend

Selected product for garage roof. Online 400sf was the best price available and needed 4 rolls. Great delivery in 3 days to our door. Product installed as expected with razor knife and staple gun.

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Cuts easily with a Razor knife or scissors

Would Recommend

This product was used to line the windows of my Sunroom, which gets very HOT in the Summer and is unbearable to use. After lining the windows the temperature is manageable with the fan and AC in the room. It was easy to work with and no messes, glues or fiberglass residue.

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It works

It really helps to low the temperature in the attic, I'm half way to finish the entire attic roof ánd temperature has dropped about 13% from 120 degrees to 105 degrees, keeping in mind that roof has a very poor ventilation along the ridge, next I'm installing an electric exhaust fan and a 14" exhaust turbine.

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Works great in my attic

Would Recommend

This stuff works great! I put this up in my attic by simply stapling it to the rafters. One rafter was greater than 24 inch center and a small gap remained so I left it to finish covering later. When I went back up there to finish I could feel the hot air coming out through the gap while the sections adjacent to that were cool.

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Received 97 Feet. Not 100 Feet

I ordered for my garage wall. I need to cut 10 piece 10 Feet. The last one only 7 Feet long. Now i need to order an extra roll.

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