R-15 Comfortbatt 3-1/2 in. x 15 in. x 47 in. Fire Resistant Stone Wool Insulation Batt (59.7 sqft)(12-Bags)
$78845
/pallet
- Maintains R-Value year after year
- Fire Resistant & Water Repellent
- Ease of Installation - Cuts Easily & Friction Fits
- View More Details
How to Get It
Product Overview
ROCKWOOL COMFORTBATT is a semi-rigid stone wool batt insulation for exterior wood and steel stud applications in both new construction and renovations. It features a unique flexible edge designed to compress as the batt is inserted then spring back, expanding the batt against the frame studs to give a complete fill. This flexibility ensures the expected R-value is achieved and maintained. On-combustible and fire resistant, COMFORTBATT will not develop toxic smoke or promote flame spread, even when exposed directly to a fire. It is also offers water and moisture resistance and excellent sound absorbency. COMFORTBATT is an effective way to improve a home's energy efficiency. It is GREENGUARD Gold Certified and contributes to a healthier indoor environment.
- Fire resistant due to its high melting temperature of 1177°C (2150°F)
- Stone wool provides excellent noise reduction and sound absorption to help you create quieter, more productive environments.
- Water and moisture resistant; does not absorb moisture to maintain insulating value
- Lightweight and easy to install, cut using a serrated knife and compression fit into place
- Water resistant, stone wool does not rot or promote the growth of mildew, fungi or mold
- Flexible edge springs back, expanding the batt against the frame studs to provide a complete fill
- GreenGuard gold certified for indoor air quality
- 12-bags included on a pallet
- Click here to learn more about Eco Options and Energy Efficiency
- Buying guide and insulation calculator:
![insulation buying guide](https://inlinecontent.thdstatic.com/pre/082014/21/INSULATION_MODAL.jpg")
Compare Similar Mineral Wool Insulation
Top Rated |  |  |  | |
| Brand | ROCKWOOL | Owens Corning | Owens Corning | Owens Corning |
| Name | R-15 Comfortbatt 3-1/2 in. x 15 in. x 47 in. Fire Resistant Stone Wool Insulation Batt (59.7 sqft)(12-Bags) | R-15 Thermafiber UltraBatt Mineral Wool Insulation Batt 23 in. x 47 in. (12-Bags) | Thermafiber Fire and Sound Guard Unfaced Mineral Wool Insulation Batt 23 in. x 47 in. (16-Bags) | R-15 Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt 15in. x 47in. (24-Bags) |
| Price | $78845 | $81579 | $114179 | $117447 |
| Ratings | (514) | (228) | (6) | (8) |
| Insulation Location | 2x4 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Floor | 2x4 Wall,Ceiling Insulation,Floor | 2x4 Wall | 2x4 Wall,Ceiling Insulation,Floor |
| Product Thickness (in.) | 3.5 in | 3.5 in | 3 in | 3.5 in |
| Insulation R-Value | R15 | R15 | R15 | |
| Insulation Features | Friction Fit | Fire Block Rated,Friction Fit,Soundproofing Insulation | Fire Block Rated | Fire Block Rated,Friction Fit,Soundproofing Insulation |
| Product Width (in.) | 15.25 in | 23 in | 24 in | 15 in |
| Compatible Install Surface | Wood | Plywood | Plywood | Plywood,Wood |
| Insulation Type | Batt | Batt | Batt | Batt |
| Roll or Batt | Batt | Batt | Batt | Batt |
| Product Length (ft.) | 4 ft | 3.91 ft | 3.91 ft | 3.92 ft |
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
| Cover Area Per Bag (sq. ft.) | 59.7 ft² | Coverage Area (sq. ft.) | 59.7 ft² |
|---|---|---|---|
| Product Length (ft.) | 4 ft | Product Thickness (in.) | 3.5 in |
| Product Width (in.) | 15.25 in |
Details
| Bag Size | 4 ft. x 16 in. x 24 in. | Batt/Roll Size | 4 ft. x 3.5 in. x 15.25 in. |
|---|---|---|---|
| Compatible Install Surface | Wood | Faced or Unfaced | Unfaced |
| Insulation Features | Friction Fit | Insulation Location | 2x4 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Floor |
| Insulation R-Value | R15 | Insulation Type | Batt |
| Number of Pieces | 144 | Pack Size | 12 |
| Product Weight (lb.) | 52.6 lb | Returnable | 90-Day |
| Roll or Batt | Batt |
Warranty / Certifications
| Warranty Information | No |
|---|
Questions & Answers
Typical questions asked about products:
- Is the product durable?
- Is the product easy to use?
- What are the dimensions of the product?
Customer Reviews
Nov 26, 2020
Insulation installed easily, no airborne fiberglass to inhale or itchy...
Insulation installed easily, no airborne fiberglass to inhale or itchy rash. Cuts easily with a serrated saw (bread knife)!
Made my cabin much quieter and keeps the heat in. I expect it to keep it cool in the warmer months as well.
by
Jul 10, 2019
The best product!
I have replaced all of the old 1955 insulation in my home and i am working on the last room right now.I'm using R14 for 2 x 4 application inside my walls.I am so glad that i'm using Roxul as it has already shown to lower my heating bills and the accoustics changed right away.I don't hear much noise outside anymore.It is so easy to install and it's not itchy,i'm cutting the pieces with a bread knife.Thanks guys for a great product!
by
Customer review from rockwool.comJan 29, 2019
It's easy to work with, not as dusty as fiberglass. I love its water repellent and fire resistant...
It's easy to work with, not as dusty as fiberglass. I love its water repellent and fire resistant qualities. Even though it is quite a bit more expensive than fiberglass, it's long term durability makes it worth the price. It is stiffer and more dense than fiberglass which makes it easier to cut and shape as needed. I just used a bread knife.
by
Jul 19, 2018
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 like it better than the foam & I can easily install it myself.
by
Customer review from rockwool.comMay 18, 2018
Fast install, easy to work.
Fast install, easy to work.
by
Apr 18, 2018
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.
by
Customer review from rockwool.comMar 13, 2018
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.
by
Customer review from rockwool.comMar 12, 2018
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.
by
Customer review from rockwool.comMar 12, 2018
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 positives, this product is just far superior at the end of the day. It's our gold standard for each home that we send out of our shop and it makes us proud!
by
Customer review from rockwool.comMar 12, 2018
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 4 LIFE!!!!!!!
by
Customer review from rockwool.com
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