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 )

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.

I will be buying this again!

New kitchen, south exterior wall. Better R value. Sound suppression. Easy to cut. Doesn't fall apart when handling. Keeps it shape. No itching like fiberglass. Great Product. Costs a bit more but you get that back many times over!!!

Installs nice

We supply and install Rockwool Our customers love it because it is the best insulation on the market. It is fire proof, looks amazing in the wall cavities and has great thermal properties. I encourage my customers to choose Rockwool over traditional batt and even spray foam applications. We enjoy the product very much !

Easy to work with.

Used it to insulate exterior basements walls.easy to cut and install with the added rigidity over fibreglass. Great for basements as moisture does not have adverse effects like with fibreglass.

Worlds above any fiberglass products

I love to batt homes with Roxul. Definitely a better product than any other batt out there.

130 year old church restoration, ideal product

Installing comfort batt insulation in the walls and floor of a 130 year old William Critchlow Harris church/cottage upgrade. As this structure is a 'balloon' design, fire concern was paramount. Simple installation even with so many cuts, and huge long term benefits. Ideal application for your product.

Best thermal insulation product

Insulated my entire house with this product. Best money I spent on home improvement.

We won't use anything but this product in our builds!

We do both custom and high volume manufacturing for tiny homes on wheels. It's important to us that the products we spec out to use are easy to install and work effectively for our applications. This product does exactly that. Sounds carry far and wide even in tiny homes. So, when we have new families moving into a small space, this product makes an excellent noise dampener in between closed off rooms to provide an element of privacy where it can normally be hard to find. Nevermind its obvious p...

I WILL BUY THIS PRODUCT OVER & OVER & OVER AGAIN!!!!

Ive been a fan of Roxul aka "Rockwool" ever since Mike Holmes Introduced it to his show Holmes on Homes. Had to wait a couple of years before it came to the States but when it did, i was elated!!! I got to try the water test and burning it, and boy was it amazing, just as described and show. I will never ever use the pink insulation ever again!! Re-insulating that garage picture i sent you in 90degree heat, after done that garage kept a temp of 70 degrees, i was extremely impressed!! ROXUL HEAD ...

I am happy with this product.

I like it when i get asked what i'm putting into my walls.I let friends know that this product is safe to handle and not itchy.I'm using a bread knife to cut pieces to fit.I've got peace of mind knowing it's not going to grow mold,it's fire resistant,easy to install and i won't hear as much outside noise in my home.Right now i am installing this product and i am 3/4 completed.

This stuff is amazing!

Rodents do not touch this stuff, it's durable and super easy to instal, keeps it's insulating qualities even if damp, mould resistant, made from natural product and great for cold Canadian winters. I've used it in a few shipping container cabins and they stay cozy warm in winter and cool and comfy in sunmer.

Product Is Great, Delivery Experience was terrible

Roxul is great. Love the product. It's like cotton made of rock. Insulates well. You need to wear eye protection and mask to not breathe it in. It is irritating to the skin but not like fiberglass. Holds in place if you cut it large than intended install area. 5 star on the product. No stars on delivery. Delivery: Lowe's called to confirm delivery on Saturday saying they would call me on Friday night for a two hour delivery window. Friday night I get the robo call 10-2pm delivery. 10 arrives. C...

Cheaper than Fiberglass and Easier to work With

Having done the rental machine and blowing fiberglass routine- which worked but was way more effort and mess than you would think, decided to try the rockwool batts. It was cheaper than the equivalent R value FG and easier to work with.

The best insulation available

I've used Roxul insulation for a number of projects over the years - both for thermal insulation and soundproofing, Quite simply the best insulation there is. Easy to measure and cut (use an old bread knife), friction fit holds it in place securely (I've used it in a 9" basement ceiling without any support and it it doesn't sag or budge). Because it's easily compressed it's perfect for studs or joists that aren't perfectly square. Simple to cut around electrical boxes etc. Non-irritating and so ...

great product

Very usable, comfortable

great product

Earlier this year had comfort batt insulation installed in a renovation project - liked the fire protection feature, how the insulation holds up over time compared to pink alternatives, and the ease of use and installation (easier to cut, not itchy). Insulation is working like a charm now that cold weather has set in

Outstanding affordable an easy to work with product

My first time using Comfortbatt insulation. I was very impressed with ease of cutting and installation no staples and minimum mess. I can't see fiberglass insulation even coming close to real world insulating and sound suppression of the Roxul product there is no comparison in the density of these two products. Great for builds that incorporate odd and angled framing dimensions. Slightly higher cost than traditional fiberglass batting but I am sure we will see the return in energy savings. Did...