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)

Rockwool R22 insulation

This is a great product. Easy to use! We used it to insulate our garage! Worth every penny!

House

Good product , insulation and rating all in one. Not as itchy as fibreglass. We use this produce in all our commercial projects. Cheeper than using fibreglass

The best choice for contractors.

My crew and I install Comfortbatt on a regular basis for residential projects. Both new construction and renovations can benefit from the many features of Rockwool such as fire resistance and sound deadening. One huge reason to use it in our coastal area of western Canada is the resistance to humidity and moisture. It’s the perfect product!

Filling every wall with it

One particular YouTube channel turned me on to this product. I bought a 50’s home that still had some weird Kimsul insulation in it. The R3ish this stuff was won’t cut it in New England winters. Gutted the second floor first and every wall upstairs now has rockwool in it. I love it. I don’t hear the highway anymore, the rooms stay perfect temp with the mini splits only. Easy to install and love how you can carve out the batt to fit where you need it. Going to put another order in soon for the fi...

Rockwool R30 attic install

I installed the Rockwool comfortbatt in my attic over this last winter in hopes that it would help keep my home cool over this summer. In my opinion it helped a lot, that being said there was no insulation in my attic before the rockwool. I will be installing some Rockwool in my crawl space over the next winter hoping this helps keep the heat/coolness in the home even better. Shawn Solis

It’s great

This insulation is great, super easy to work with and great value. Thank you for making a great product.

Safe and quiet

I’ve used Rockwool insulation behind walls and under joists to isolate the sound in the TV room from the surrounding rooms. It performs well and was easy to install. I will use it again soon in my attic. Our furnace is in the attic and I believe that adding Rockwool insulation between the rafters will help to keep the attic cooler in the summer which will lower my AC costs.

Hands Down Bar None Best Insulation

Rockwool ComfortBatt is such a great product that is easy to use, easy to install, and gives so many benefits to our new custom homes. After installing it on my personal home I am convinced it is the best product out there. It went in so fast, wasn’t very messy, and that is before all of the benefits you get with any Rockwool product. Quiet, stable, fire and water resistant…this is going to be a lifelong high performance product.

Best fire resistant insulation!

I finally got around to fire stopping my garage since I live above it, and I chose Rockwool to fill joist cavities and pipe and wire penetrations. Rockwool is not only fire resistant but also has the best sound deadening properties out of any insulation on the market, and that’s great when I have to leave for work and my wife is still sleeping I know the noise of the car will not wake her up!!! I did tons of research on mineral wool insulation and Rockwool is the original best product to pro...

Comfort Batt for the win...AGAIN

We have been using RockWool on our interior residential renovation products for quite some time. It is a no brainer for us and for us to utilize on our projects. Its resistance to mold, rot, mold, and mildew because it is made of spun stone that cannot absorb and hold water is amazing and a game changer. It also offers incredible sound reduction and fire resistance. It is fluffy, holds its shape in the wall cavity, easy to trim down, and is not itchy fiberglass. Love it and love everything ...

Good product bad customer service

Product is very good but be aware when it is shipped I guess it is an open box and sometimes it comes in wet. This product is junk if it gets wet it holds water really bad. But the lowes stores carry it but never seem to have it stocked up. And they will take forever to bring down product from the shelves.

It’s a good quality material

My second shipment of 50 bags of material was loose looks likes it’s been seating for to long it losses density

Quality is amazing.

I love this insulation and think it is exactly what I needed. I placed it in two layers perpendicular to each other in the attic. Since applying, I've honestly noticed the difference in my home. Both my upstairs rooms are the same temperature now before one was always 5 degree off. The house feels more comfortable and I've noticed it doesn't have a drastic change in temperature. Prior the outside temp would change and my home would immediately either get hot or cold quick, now it's gradual keep...

Cleaner and easier to manage than fiberglass

Much clear and easier to deal with than fiberglass