Model # RXCB551525

Internet #205972546

ROCKWOOL R-23 ComfortBatt Fire Resistant Stone Wool Insulation Batt 15 in. x 47 in. (12-Bags)
0774783472209

ROCKWOOL

R-23 ComfortBatt Fire Resistant Stone Wool Insulation Batt 15 in. x 47 in. (12-Bags)

  • Maintains R-Value year after year
  • Fire Resistant & Water Repellent
  • Ease of Installation - Cuts Easily & Friction Fits
$ 559 98 /pallet(lift)
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Frequently Bought Together

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Product Overview

  • Maintains R-Value year after year
  • Fire Resistant & Water Repellent
  • Ease of Installation - Cuts Easily & Friction Fits
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. Non-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)
  • Excellent sound absorbency
  • Bag coverage: 39.8 sq. ft.
  • Water and moisture resistant; does not absorb moisture to maintain insulating value
  • Easily cut
  • Does not rot or promote growth of fungi or mildew
  • GreenGuard gold certified for indoor air quality
  • Made from natural rock
  • 12 bags included on a pallet
  • Buying guide and insulation calculator:

    insulation buying guide
    Insulation calculator button
    "

Product Overview

  • Maintains R-Value year after year
  • Fire Resistant & Water Repellent
  • Ease of Installation - Cuts Easily & Friction Fits
Model #: RXCB551525
Internet #: 205972546

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. Non-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)
  • Excellent sound absorbency
  • Bag coverage: 39.8 sq. ft.
  • Water and moisture resistant; does not absorb moisture to maintain insulating value
  • Easily cut
  • Does not rot or promote growth of fungi or mildew
  • GreenGuard gold certified for indoor air quality
  • Made from natural rock
  • 12 bags included on a pallet
  • Buying guide and insulation calculator:

    insulation buying guide
    Insulation calculator button
    "

Info & Guides

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Price
$554.83 /pallet(lift)
$559.98 /pallet(lift)
$611.99 /pallet(lift)
$712.89 /pallet(unit load)
Name R-30 ComfortBatt Fire Resistant Mineral Wool Insulation Batt 15 in. x 47 in. (12-bag) R-23 ComfortBatt Fire Resistant Stone Wool Insulation Batt 15 in. x 47 in. (12-Bags) R-15 ComfortBatt Fire Resistant Stone Wool Insulation Batt 15 in. x 47 in. (12-Bags) 15 in. x 47 in. R-23 Thermafiber Ultrabatt Mineral Wool Insulation Batt (18-Bags)
Brand ROCKWOOL ROCKWOOL ROCKWOOL Owens Corning
Ratings (430) (951) (963) (22)
Insulation Location Attics,Attics,Basements,Basements,Ceilings,Ceilings,Crawlspaces,Crawlspaces,Floors,Floors 2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Floors 2x4 Walls,Attics,Basements,Ceilings,Crawlspaces,Floors 2x6 Walls,2x6 Walls,2x6 Walls,Ceilings,Ceilings,Ceilings,Floors,Floors,Floors
Roll or Batt Batt Batt Batt Batt
Faced or Unfaced Unfaced Unfaced Unfaced Unfaced
Product Thickness (in.) 7.25 in 5.5 in 3.5 in 5.5 in
Coverage Area (sq. ft.) 29.9 39.8 59.7 19.6 ft²
View Product View Product View Product View Product

Specifications

Dimensions

Coverage Area (sq. ft.)
39.8
Product Length (ft.)
3.91 ft
Product Thickness (in.)
5.5 in
Product Width (in.)
47 in

Details

Faced or Unfaced
Unfaced
Insulation Features
Friction Fit
Insulation Location
2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Floors
Insulation R-Value
R23
Insulation Type
Mineral Wool Insulation
Number of Bags
12
Pieces Per Bag
8
Product Weight (lb.)
51.2lb
Returnable
90-Day
Roll or Batt
Batt

Warranty / Certifications

Warranty Information
No

Specifications

Dimensions

Coverage Area (sq. ft.)
39.8
Product Length (ft.)
3.91 ft
Product Thickness (in.)
5.5 in
Product Width (in.)
47 in

Details

Faced or Unfaced
Unfaced
Insulation Features
Friction Fit
Insulation Location
2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Floors
Insulation R-Value
R23
Insulation Type
Mineral Wool Insulation
Number of Bags
12
Pieces Per Bag
8
Product Weight (lb.)
51.2lb
Returnable
90-Day
Roll or Batt
Batt

Warranty / Certifications

Warranty Information
No

Questions & Answers

Im putting this in a crawl space. Beams are 2x6. Do i need some kind of vapor barrier or some kind of air ventilation.

Asked by: HomeProject
No, do not install vapor barrier in crawlspace. You should have adequate ventilation through the foundation vents.
Answered by: HandyJack
Date published: 2018-09-29

Can I cut the 5.5" insulation vertically. I will have left over and want to fit in 2x4 walls for...

Can I cut the 5.5" insulation vertically. I will have left over and want to fit in 2x4 walls for sound proofing.
Asked by: buck
Yes, it can be cut in any direction and size. There is a special knife that is excellent for cutting this insulation. It has a serrated 7.5 in long blade, stainless steal and it makes the job so easy. It is only about $12 to $14 and is well worth it. I used to cut insulation with a pair of shears and the knife made the job go very quick compared to using the shears. I had a corner that was only about two inches between stud and next wall. It was easy to cut to size and stuff into the corner. It does create some dust so you will want to ware a dust mask. I did not ware a dust mask and it caused me to cough for about an hour afterwards. I was in a hurry and forgot to buy one and said oh well it is a small job, but if I use this product again, I will for sure use a dust mask. It is not a lot of dust, but even a little causes breathing irritation. This is in my opinion the best insulation on the market for DIY projects.
Answered by: papa
Date published: 2018-09-23

can i use this between metal studs?

Asked by: NickyWu
I believe so, yes. You can contact the company and they have very good customer support. Even helped me figure out what size batts and how many bags I needed for project. I have noticed a huge difference in room temp and sound buffer.
Answered by: Sd
Date published: 2018-01-28

how many pieces in a single bag? 8?

Asked by: granadaCoder
Yes, there are 8 batts per package
Answered by: TES
Date published: 2018-07-07
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Customer Reviews

R-23 ComfortBatt Fire Resistant Stone Wool Insulation Batt 15 in. x 47 in. (12-Bags) is rated 4.8 out of 5 by 951.
Rated 5 out of 5 by from This mineral wool product is dense and sized to be pushed between 16" oc 2x6 stud walls. It is v... This mineral wool product is dense and sized to be pushed between 16" oc 2x6 stud walls. It is very easy to install and far less irritating dust than fiberglass. When installation is completed in any room, there is a noticeable reduction of echo when walking on raw wood floors or with talking. I am thrilled with it also being a fire retardant and water repellent. Cuts easily for outlets, power or water lines, or just odd shaped bays. A relatively expensive product, but anyone can install this insulation so you can certainly save on installation costs.
Date published: 2019-01-15
Rated 5 out of 5 by from Easy to install and now that the floor and ceiling of the master bed room is fully insulated, I b... Easy to install and now that the floor and ceiling of the master bed room is fully insulated, I barely have to heat up my room anymore. It s like the whole room is covered by a nice and invisible blanket. The only issue is that you have to order by a batch of 12 bags. You need to calculate your needs very precisely
Date published: 2018-12-18
Rated 5 out of 5 by from Rockwool r23 was perfect for our remodel of a 100+... Rockwool r23 was perfect for our remodel of a 100+ Year old farmhouse. We took walls back to the studs and have found that none of the bays are on a true 16” center so we were able to cut these batts down to sizes need. Also was very easy to cut out for electrical boxes wire Gas and water lines
Date published: 2019-01-15
Rated 2 out of 5 by from I started insulating this weekend. Out of the 9 bags... I started insulating this weekend. Out of the 9 bags I have opened so far 3 of them had wet sides. It has been stored in my garage since delivery. I am trying to air them out but they don’t seem to be drying. These must have sat out somewhere exposed prior to my receiving them.
Date published: 2019-02-12
Rated 5 out of 5 by from 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.
Date published: 2018-11-30
Rated 5 out of 5 by from This rockwool batting is awesome. Easy to install. Can be... This rockwool batting is awesome. Easy to install. Can be cut easily with bread knife-like blade. Can be spilt longitudinally into thinner pieces easily. Good sound proofing and insulation.
Date published: 2018-11-27
Rated 5 out of 5 by from Stays in place easy to cut with Grip Rite insulation... Stays in place easy to cut with Grip Rite insulation knife no itching to skin
Date published: 2019-02-07
Rated 5 out of 5 by from I WOULD BUT THIS PRODUCE AGAIN Used in a new pump house. worked great and easy to use. Has not froze since.
Date published: 2018-11-25
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