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Comfortbatt R- 30.0 Attic Wall Unfaced Stone wool Batt Insulation 30-sq ft ( 23.0-in W x 47.0-in L )

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 )

4.8
569
Review
 4.8 out of 5
569 Reviews


99% Recommend this product

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.
569 Customer Reviews

Easy to cut with a bread knife.

This is an awesome product.Easy to cut with a bread knife.

October 29, 2026
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Lower your bills...

Would Recommend

Best insulation ever

October 25, 2026
Verified Purchaser
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Best Delivery Guy on Island

Would Recommend

Super friendly, great communication, and right on time.

October 6, 2026
Verified PurchaserVerified Pro
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Great product

Would Recommend

This is very easy to work with, cuts easily, and installs nicely. I'm fortunate that my local store had some return stock so I could buy it without special ordering this somewhat less common size.

September 25, 2026
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Great sound dampening

Would Recommend

Great product to reduce noise.

September 18, 2026
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Would Recommend

Anna was Fabulous. Quick and efficient. Don't lose her!!!

May 7, 2026
Verified Purchaser Lowe's Employee
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High R value for Thickness

Just what I needed

April 21, 2026
Verified Purchaser
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Better than fiberglass

Would Recommend

Easy to work with

April 2, 2026
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Great stuff, but not a lot of it.

Handy, easy to cut and install. Only get 4 batts per package, don’t doesn’t go a long way.

January 27, 2026
Verified Purchaser
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Disappointed delivery communication

Would Recommend

Product was fine . Problem getting it to me .. Delivery was confusing and I had to go too store get it fixed . Naperville store very helpful MK and Ron excellent job . AJ delivery person excellent job . One person not naming was supposed to call AJ with correct phone number never did . AJ went to my neighbor got my phone number and called me to finish delivery

January 16, 2026
Verified Purchaser
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Online order was sold by store

Would Recommend

My online order require the purchase of a minimum order of 12 packages of insulation. this was fine because I would require all 12 bundles to insulate my cathedral ceiling. When the order reached the store for delivery, six of the bundles were sold to another customer before it could be delivered to my home. When they delivered my order it was only six bundles. I had paid for 12 bundles. The Assocuate Manager apologized but said the only thing they could do was reorder the missing six bundles. I...

November 21, 2025
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ProDesk

Would Recommend

The ProDesk person (Eternity) was extremely helpful with fulfilling my order for insulation.

October 16, 2025
Verified Purchaser
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