Ratings & Reviews for ROCKWOOL Comfortbatt R- 15.0 Attic Wall Unfaced Stone wool Batt Insulation 60.1-sq ft ( 23.0-in W x 47.0-in L)

Does what it says.

Had to redo an addition on my home, practically no insulation at all originally. Once this added, the room now doesn't lose cooling like it used to and it feels much better on the rare cold spell.

I WOULD BUT THIS PRODUCE AGAIN

Used in a new pump house. worked great and easy to use. Has not froze since.

Great Product

Rockwool Comfortbatt is easy to install & retains it shape overtime. This product is more great for homeowner who live in a humid areas like Houston Texas since Rockwool Comfortbatt is resistant to mold & mildew which limits bacterial growth in your walls.

First time insulating experience great product

Im insulating a small shed to be finished out into a showroom and Im using this for the ceiling. I used the 16” in the walls and love how easy it is to work with. Im cutting it with an inexpensive electric knife and it makes the cutting smooth and quick. Love that you dont have to staple it as its a semi-firm slab without a paper backing that stays in the studs just by pushing it in and not as badly irritating as fiberglass Ive heard, although I still wear a mask and long sleeves. This is my fir...

Great product.

This is a great product. Living in Florida I especially like the fact that it does not rot or promote growth of of fungi or mildew and it is moisture and water resistant.

It seems to lower the garage temperature

I've only installed a portion of the insulation, since I'm adding attic flooring as I go, so I have something to stand on. Some of the insulation and flooring got moved, because I was also installed an attic ladder. It's really easy to cut, but it also falls apart more easily than I expected. Nevertheless, I get R-15 with only 3.5 inches of insulation. I'd say that is pretty darn good.

The amount of sound reduction is immediately noticed

So far, I have bought 5 packages of the comfortbatt to finish my garage and I don't have plans to stop there. I am insulating and finishing our 2 car garage and when just one wall was insulated the noise reduction was already very noticeable! It is easy to cut, easy to install, easy to notice a positive difference! I am already planning on using the safe'n'sound on my next project. The only complaint I have is that for as heavy as the packages are the bags tear too easily trying to load and unlo...

This should make regular fiberglass insulation obsolete

I'm remodeling my 1950 mid century modern home one room at a time. I started with the hardest room to heat & cool, knocked out the old plaster & had the room sprayed with rigid & soft foam. The guys rushed the job & left some thin spots and even bare wood showing thru. I wanted to fill voids with Roxul but could not find it anywhere in Oklahoma so I hung the drywall anyway. Since then I've found a dealer 30 miles from me that can order it. I've since used Roxul in my sun room & garage. I l...

Prefer rock wool insulation

Having finally found a vendor in the local area that would sell it, I use nothing else. It doesn't mold. Air and moisture do not as readily move thru material as such do fiberglass. Bugs don't appear to like the stuff. R value per inch provides better insulation in remodel of structures with 2x4 walls without resorting to scabbing 2x2s or double-walling exterior walls.

Comfortbatt's fire performance gives you piece of mind

I used it for wall insulation.

Absolutely will buy again.

I am in the middle of a full renovation and have used Roxsul in my attic. I plan on finishing walls with Roxsul also. Very happy overall with product.

Works great in our 1942 house!

We had the old insulation vacuumed out of our attic, to get the house re-wired. There's still some to do, so some of the attic is uninsulated at this time. This has actually been interesting, despite the high temps where we live, because we can measure the effects of different amounts of insulation. The first layer is the R15, to the top of the joists. The entire attic will have this. For some areas, this is ALL that will be there, because my husband wants to be able to access some areas, s...

I'll be buying more of this

I remodeled a room and insulate with R15, it was great to install and send to work well

LOVE IT !!!!!

I had used quite a bit of the Comfort Batt when we lived in VT ( mainly our last house we had up there) and loved it , our house stayed nice and warm plus i put some in a wall that was between out living room and office ( there was a tv and sound bar hanging on that wall) and when I was in the office I could barely hear a thing . Our current house is now in PA and I want to put some in but do not have the funds , it is a very large and prominent victorian house that has been neglected so money ...

Great Product

I used this product in my basement below grade. Works great. I am now going to use it in my lake home remodel. Thank You

Easy to work with!

Used this in our basement to fill gaps between floor joists (that little picked between the concrete basement wall and the ceiling) - flexible, easy!

I would buy this product again

it would be better if each roll has length guide and tin sheet to attach insulation.

Better Conformance to Joist Spacing

Fiberglass batts depend on springback to original shape, from large compression in packaging. That springiness then results in buckling if a bit oversize for the space. Rockwool doesn't do this. Lost contact with confining surfaces destroys insulation value.

I love using this compared to regular fiberglass batts.

I just started using this instead of regular batts and seem to like it alot more .

Staying either warm or cool

Rockwool insulation is energy efficient and consistent. It keeps our family comfortable during all seasons.