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R-30 Comfortbatt 7-1/4 in. x 15 in. x 47 in. Fire Resistant Stone Wool Insulation Batt (29.9 sqft) (12-Bags)

$71510
/pallet
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  • Maintains R-Value year after year
  • Fire Resistant & Water Repellent
  • Ease of Installation - Cuts Easily & Friction Fits
  • View More Details
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Price:
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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. 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)
  • 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
  • Does not rot or promote growth of fungi or mildew
  • Flexible edge springs back, expanding the batt against the frame studs to provide a complete fill
  • 12 bags included on a pallet
  • Click here to learn more about Eco Options and Energy Efficiency
  • Buying guide and insulation calculator:

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Additional Resources

From the Manufacturer

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Top RatedR-30 Comfortbatt 7-1/4 in. x 15 in. x 47 in. Fire Resistant Stone Wool Insulation Batt (29.9 sqft) (12-Bags)
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Price
$71510
/pallet
$74076
/pallet
$113168
/pallet
$146549
/pallet
Ratings
(481)
(230)
(11)
(57)
Insulation LocationAttic,Basement,Ceiling Insulation,Crawlspace,Floor2x4 Wall,Ceiling Insulation,Floor2x4 Wall,Ceiling Insulation,Floor2x6 Wall
Product Thickness (in.)7.25 in3.5 in3.5 in5.5 in
Insulation R-ValueR30R15R15R23
Insulation FeaturesFriction FitFire Block Rated,Friction Fit,Soundproofing InsulationFire Block Rated,Friction Fit,Soundproofing InsulationFire Block Rated
Product Width (in.)47 in23 in15 in15 in
Compatible Install SurfaceWoodPlywoodPlywood,WoodPlywood
Roll or BattBattBattBattBatt
Insulation TypeBattBattBattBatt
Product Length (ft.)3.92 ft3.91 ft3.92 ft3.91 ft
View ProductView ProductView ProductView Product

Specifications

Dimensions

Cover Area Per Bag (sq. ft.)29.9 ft²Coverage Area (sq. ft.)29.9 ft²
Product Length (ft.)3.92 ftProduct Thickness (in.)7.25 in
Product Width (in.)47 in

Details

Bag Size4 ft. x 16 in. x 24 in.Batt/Roll Size3.92 ft. x 7.25 in. x 47 in.
Compatible Install SurfaceWoodFaced or UnfacedUnfaced
Insulation FeaturesFriction FitInsulation LocationAttic,Basement,Ceiling Insulation,Crawlspace,Floor
Insulation R-ValueR30Insulation TypeBatt
Number of Pieces72Pack Size6
Product Weight (lb.)36.8 lbReturnable90-Day
Roll or BattBatt

Warranty / Certifications

Warranty InformationNo

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.8
    out of 481 reviews
  • 99%recommend this product
Filter by:
Showing 1-10 of 481 reviews
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.
by
    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 provide fire resistance, sound deadening and thermal insulation all in one product!!!
    by
      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 about it!
      by
        Great product! For 2 years I've been wanting to reinsulate the floor of my living room which sits...
        Great product! For 2 years I've been wanting to reinsulate the floor of my living room which sits above my garage. Our winters here in NJ are very cold, and walking on a cold floor isn't very enjoyable. I didn't want to deal with the itchy fiberglass and also wanted something fire resistant for safety purposes, so I decided to go with the Rockwool mineral wool batts. My garage is 22x20 and framed 16 o.c. with 2x8 floor joists, so I ordered 15 bags of the R-30 ComfortBatt insulation to fill the spaces between the 2x8s. Shipping was fast and they didn't inform me my order was a week ahead of the shown delivery, but luckily I was home when they came. These are very dense and stay in place when placed overhead, but I would definitely recommend some type of eye protection and a mask when insulating overhead as little pieces tend to fall in your face.
        by
          • Recommended
          5 found this review helpful
          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
            • Recommended
            Delivery was great. Installation was easy. I had to cut the sheets in half to fit in between th...
            Delivery was great. Installation was easy. I had to cut the sheets in half to fit in between the 24 inch joists. My husband installed the insulation. There was no insulation above the garage space, and now it's chock full. Easier to work with than fiberglass, but you still need a mask and gloves. Just a little itchy.
            by
            • Verified Purchase
            • Recommended
            4 found this review helpful
            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
              • Recommended
              Great product, easier and more sound dense, fire safe than regular fiberglass, inspector loved it...
              Great product, easier and more sound dense, fire safe than regular fiberglass, inspector loved it, commented on the fire rating, make sure you get the knife to cut it with.
              by
              • Verified Purchase
              • Recommended
              6 found this review helpful
              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
                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
                  • Recommended
                  Showing 1-10 of 481 reviews