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.
Customer review summary generated by AI, including incentivized reviews.cold showers help get the itchy bits off your skin
It's not like we live in any of the houses we build. We are the wrong people to ask about the performance of this insulation. As far as we know, it's great. Could be garbage; we can't say.
From InsulPure R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack Verified Purchaser