
Ratings & Reviews for ROCKWOOL Comfortbatt R- 30.0 Attic Wall Unfaced Stone wool Batt Insulation 30-sq ft ( 23.0-in W x 47.0-in L)
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this insulation for exceptional thermal and acoustic performance, noting warmer homes, reduced energy costs, and significantly dampened noise. Installation is remarkably easy—it cuts smoothly, requires no special tools, causes no skin irritation, and fits snugly into tight spaces, making it ideal for DIY projects and renovations. Most customers declare they will never return to fiberglass, citing superior R-value, better durability, and resistance to fire, mold, water, and insects. A few mention blade dulling during large installations, but this minor drawback is vastly outweighed by overwhelming positive feedback.
Customer review summary generated by AI, including incentivized reviews.Insulation
Would RecommendGreat product. Easy to work with
Verified PurchaserVerified Pro
Cost Effective for Small Areas / Shallow Cavities
Would RecommendThis product is worth the money, especially if you need to insulate a very small area.I cut the batts in half to insulate the ceiling cavity between my kitchen and upstairs bathrooms. It was more cost-effective bag-for-bag than buying safe n sound.
Great insulation
Would RecommendI used this product to insulate the floor and ceiling of a large attic storage room before finishing it. I also used the R-15 version to insulate the walls. It is easy to handle, does not release particles into the air like fiberglass does (or at least much less so), cuts easily to fit around obstructions, and compresses for a tight fit. I would use it again in a heart beat.
Verified Purchaser
great product!
Would RecommendHad to drive 3.5+ hrs each way to pick up but we needed insulation for our cathedral ceiling and it was either this or spray foam. Rockwool is very easy to install and can be cut to size with a bread knife. I also like that it doesn't cause your skin to become irritated or itch like fiberglass can
Easy to install
Would RecommendEasy to cut, does not compress easily, very little itching. Wish lowes carried the rolls as well.
Verified Purchaser
Incredible Insulation
Would RecommendWe installed R23 Comfortbatt in exterior walls, R24 in our I-Joist floor platform, and R38 plus a layer of R15 in the attic of our new construction owner-built house. What a huge difference it made in thermal comfort of the house, even before the vapor control layer and drywall was in. Love the resistance to fire, water, mold, insects, etc. and our DIY install was easy!
From rockwool.com
Product was fine. Delivery was delayed by a week
Product was fine. Delivery was false. Delayed by a week
Verified Purchaser
Easy Installation and Very Quiet
Would RecommendI used the Rockwool R38 and R15 Comfortbatt in my garage build. I did a flash and bat method with 2" of spray foam and then the R15 Comfortbatt on the walls. Installation was easy and boy does it help knock the sound down. What a fantastic product!
From rockwool.com
Easy work
Would RecommendVery easy to install
Verified Purchaser
Excellent product. Horrible customer service experience with the pick up. Waited an hour for staff to actually get the order ready (yes, it was marked ready for pickup). A complete disaster.
Verified Purchaser
Really easy to install.
Would RecommendProduct was cheaper than other options, easy to use, and minimum mess.
Verified Purchaser
Worth the price in ease of use alone
Would RecommendIt was easy to cut and install. Very friendly to bare skin. Not much irritation lie traditional fiberglass. Safer amount of particulate released into the air, although always recommended to wear proper breathing protection. Has a better R-Value per inch than fiberglass. Don't let the increased price deter you. This is about as good as it gets before spray-in insulation and has a lot of the same benefits.
Verified Purchaser
Insulation
Would RecommendHow well it insulations our home.
Verified Purchaser
wear personal protection
Would Recommendeasy to work with
Verified Purchaser
Great Product
Would RecommendEasy to work with. Not as itchy as the pink stuff. Easy to cut/notch.
Verified Purchaser
Perfect For Every Project
Would RecommendI have been using ROCKWOOL since it was Roxul! The Comfortbatt thermal insulation offers a lot of big benefits. It’s easy to cut and install, holds its shape for a snug fit, resists mold, moisture and fire, all while providing reliable thermal performance. The stone wool batts are ideal for achieving a more durable and efficient home. I’ve trusted ROCKWOOL Comfortbatt insulation for my shows and personal projects for years! Disclosure: I am a long-standing ambassador of ROCKWOOL and its stone...
From rockwool.com
Thank you Kwhit. A serrated knife always makes the cutting as easy as cutting a loaf of bread.
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