Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

R- 21 Attic Wall Unfaced Reflective Roll Insulation 100-sq ft ( 48-in W x 25-ft L ) Individual pack

Ratings & Reviews for Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 100-sq ft ( 48-in W x 25-ft L ) Individual pack

4.8
431
See Product Details
Review
  4.8 out of 5
431 Reviews


97% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The reflective insulation product appears to be a versatile and effective solution for home and RV insulation. Customers report it is easy to work with, install, and cut to size, making it suitable for various applications. The reflective properties help regulate temperatures, keeping spaces cooler in hot weather and warmer in cold weather. The product is particularly well-suited for insulating areas with large windows or exposed to direct sunlight, as the reflective layer blocks heat transfer. Customers also mention using it to insulate water pipes, crawl spaces, and attics, often in combination with other insulation types. Overall, the consensus is that this is a high-quality, effective product that can provide significant energy savings and temperature regulation benefits.

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

+

good product

April 2, 2025
Verified Purchaser
Was this Review Helpful ?

Great Window insulation

 Would Recommend

Great product for insulating windows in summer while you are away on extended vacation.

March 28, 2025
Verified Purchaser
Was this Review Helpful ?

Still haven’t recieved

 Would Not Recommend

Ordered 7 months ago and received 8/10 the other two have been delayed since July 11th

March 7, 2025
Verified Purchaser
Was this Review Helpful ?

Excellent garage door insulation package

 Would Recommend

The products are good, the service is excellent and my garage door looks very good.

February 18, 2025
Verified Purchaser
Was this Review Helpful ?

Insulation added value to my home!

February 9, 2025
Verified Purchaser
Was this Review Helpful ?

Easy and Inexpensive

 Would Recommend

Easy to cut and install, works like it should.

January 6, 2025
Verified Purchaser
Was this Review Helpful ?

great for drafty cold windows

 Would Recommend

easy to use

January 5, 2025
Verified Purchaser
Was this Review Helpful ?

Great to work with using aluminum tape.

 Would Recommend

Insulated my furnace trunk ducts. Much warmer heat coming from ducts!

December 15, 2024
Verified Purchaser
Was this Review Helpful ?

many uses

 Would Recommend

Great for wrapping water tanks, putting under rugs, radiant barrier in attics, etcetc

December 11, 2024
Verified Purchaser
Was this Review Helpful ?

Made liner for camping tent

 Would Recommend

One roll easily covered the floor of a 10’x9’ camping tent, to insulate it from ground while camping in colder weather. Excellent value and quality!!

November 20, 2024
Verified Purchaser
Was this Review Helpful ?

Great quality and price

 Would Recommend

Thick good quality

November 19, 2024
Verified Purchaser
Was this Review Helpful ?

Easy install

 Would Recommend

Very easy to install

November 16, 2024
Verified Purchaser
Was this Review Helpful ?