
Ratings & Reviews for CertainTeed InsulPure R- 21 Wall Kraft faced Fiberglass Batt Insulation 77.5-sq ft ( 15-in W x 93-in L)
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this insulation for exceptional thermal performance, ease of installation, and outstanding value. Most highlight its snug fit in standard wall cavities, precut sizing for 16" and 24" on-center framing, and DIY-friendly design requiring no special tools. Reviewers note measurable energy savings, improved home comfort, and effective pipe-freeze prevention. Many appreciate the solid, heavy material that doesn't scatter, comparing it favorably to pricier alternatives. A few mention skin irritation when handling and suggest wearing protective gear. Overall, customers consider it an excellent choice for both new construction and remodeling projects.
Customer review summary generated by AI, including incentivized reviews.R-13 insulation
Would RecommendWent up easily and held up well.
From InsulPure R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack Verified Purchaser
Good product
Would RecommendLiked this product. Good insulation
From InsulPure R- 13 Wall Kraft faced Fiberglass Batt Insulation 125.94-sq ft ( 15-in W x 93-in L) Verified Purchaser
Solid insulation
Would RecommendGreat installation for any general project that you are working on. The only issue was this package was slightly ripped however I think that was an individual item issue not a product issue.
From InsulPure R- 13 Wall Unfaced Fiberglass Batt Insulation 128.04-sq ft ( 15.25-in W x 93-in L) Verified Purchaser
Great option
Would RecommendThe paper backed insulation was easy to use and pretty self explanatory when installing.
From InsulPure R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack Verified Purchaser
Itchy
Would RecommendWish roll wider
From InsulPure R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack Verified Purchaser
Great product
Would RecommendPut in my attic to replace the blown in, very easy to handle definitely makes a difference in keeping a stable temperature in the house so that saves energy which is money highly recommend for new construction or remodeling.
From InsulPure R- 38 Attic Kraft faced Fiberglass Batt Insulation 64-sq ft ( 24-in W x 48-in L) Verified Purchaser
love this stuff
Would RecommendBought a house. Garage ceiling had the pink unfaced insulation falling down and half missing. Bought this stuff and now it looks amazing. Easy to install
From InsulPure R- 19 Wall Kraft faced Fiberglass Batt Insulation 87.19-sq ft ( 15-in W x 93-in L)
Hi Louie, HI Justin, Thank you so much for taking the time to review and sharing your experience with the InsulPure Batt insulation. Your input is in...

Great insulation, have used it for years
Would RecommendEasy to work with
From InsulPure R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack Verified Purchaser
Handles well
Would RecommendIt was a good size easy to cut and I like the packaging.
From InsulPure R- 19 Wall Kraft faced Fiberglass Batt Insulation 87.19-sq ft ( 15-in W x 93-in L) Verified Purchaser
HI Justin, Thank you so much for taking the time to review and sharing your experience with the InsulPure Batt insulation. Your input is incredibly h...