Ratings & Reviews for CertainTeed InsulPure R- 21 Wall Unfaced Fiberglass Batt Insulation 78.79-sq ft ( 15.25-in W x 93-in L)
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this insulation for exceptional ease of installation, outstanding thermal performance, and excellent value. Most highlight its lightweight design, beginner-friendly handling, and perfect fit for standard wall and attic cavities without special tools. Reviewers consistently report noticeable energy savings, improved temperature stability, and unexpected sound-dampening benefits. Many emphasize the affordable price compared to alternatives while noting the material's durability and resistance to compression. A few mention minor skin irritation when handling, though most find it manageable with gloves. Overall, customers strongly recommend this product for both DIY and professional projects.
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Would RecommendI was loaded with wrong product, realized only after reaching home, had to make an extra trip and also I was sent emails saying my items are ready but had to wait for almost 30 mins for the items outside.
From InsulPure R- 19 Wall Kraft faced Fiberglass Batt Insulation 87.19-sq ft ( 15-in W x 93-in L) Verified Purchaser
serves the purpose
Would Recommendeasy to install. Good quality
From InsulPure R- 19 Wall Kraft faced Fiberglass Batt Insulation 87.19-sq ft ( 15-in W x 93-in L) Verified Purchaser
Ask for help.
Would RecommendLike customers service.
From InsulPure R- 38 Attic Kraft faced Fiberglass Batt Insulation 64-sq ft ( 24-in W x 48-in L) Verified Purchaser
Full thickness, easy to cut and install
Would RecommendI used this to insulate a roof with 2x10 joists. Once out of the package and manually "fluffed", the batts were 10" or thicker, completely filling the space. They trimmed easily using a utility knife and staples held the face paper well.
From InsulPure R- 30 Attic Kraft faced Fiberglass Batt Insulation 58.67-sq ft ( 16-in W x 48-in L) Verified Purchaser
Good products
Good product
From InsulPure R- 38 Attic Kraft faced Fiberglass Batt Insulation 64-sq ft ( 24-in W x 48-in L) Verified Purchaser
Wear gloves
Would Recommenddurability, made with quality material, price was good
From InsulPure R- 19 Wall Kraft faced Fiberglass Roll Insulation 48.96-sq ft ( 6.25-in W x 39.2-ft L ) Multi-pack Verified PurchaserIncentivized
Precut for 8’ walls
Would RecommendPrecut for 8’ walls on 16”center. Paper face has edges that are easy to staple
From InsulPure R- 15 Wall Kraft faced Fiberglass Batt Insulation 77.5-sq ft ( 15-in W x 93-in L) Verified PurchaserVerified Pro Incentivized
Precut to 4’
Would RecommendPrecut into 4’ sections to fit between joists on 24” center
From InsulPure R- 38 Attic Kraft faced Fiberglass Batt Insulation 64-sq ft ( 24-in W x 48-in L) Verified PurchaserVerified Pro Incentivized
Precut for 8’ walls on 24” center
Would RecommendGood basic fiberglass batts precut for 2x6 walls 8’ tall
From InsulPure R- 21 Wall Kraft faced Fiberglass Batt Insulation 77.5-sq ft ( 15-in W x 93-in L) Verified PurchaserVerified Pro Incentivized
great, could use updated packaging
Would Recommendproduct works as intended but difficult to transport due to size, should be nice if it came in bag that was sealed with the air removed
From InsulPure R- 38 Attic Kraft faced Fiberglass Batt Insulation 64-sq ft ( 24-in W x 48-in L) Verified PurchaserIncentivized
Easy install insulation
Would RecommendEase of use and packaged well. Fit the wall space perfectly
From InsulPure R- 19 Wall Kraft faced Fiberglass Batt Insulation 87.19-sq ft ( 15-in W x 93-in L) Verified PurchaserIncentivized