
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.This product is amazing. The order process and the delivery was seamless. Abby at the Tilton store was super kind and helpful in placing the order.
From Comfortbatt R- 30.0 Attic Wall Unfaced Stone wool Batt Insulation 30-sq ft ( 23.0-in W x 47.0-in L ) Verified Purchaser
Terrible purchase experience
Would Not RecommendReceived a confirmation that my order was picked up today. Two months after it was ordered. I did not set foot in Lowes this week.
Verified Purchaser
The insulation is great. The delivery was the problem. I painted extra for in house delivery and they left it on the curb. I complained and I was told someone would get back to me within 24 hours and it’s been 3 days. I should be reimbursed the delivery charge.
Verified Purchaser
Sound Deadening, very insulating
Would RecommendCuts like fresh bread, installs easily, insulated and sound deadened my 120 year old timber loft better than anything else I could have used
Verified Purchaser
Very sound dampening
Would RecommendEasy to work with, do not need as much protection as with fiberglass - because of the dust and small pieces that occur you should wear eye protection, mask and while not necessary, I would recommend gloves.
Verified Purchaser
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