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Model #SG-25-P3--15--47--221

Thermafiber Fire and Sound Guard Unfaced Mineral Wool Insulation Batt 15 in. x 47 in. (24-Bags)

  • Mineral wool batt can be installed within interior 2x4 wall
  • Easy to cut and install, even around construction irregularities
  • Sound control, fire resistant and mold resistant
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Product Details

Thermafiber fire resistance icon

Fire Resistance

Non-combustible insulation resists fire and temperatures in excess of 2000F, giving you more time to get out in the event of a fire.

Thermafiber sound performance icon

Sound Insulation

Outstanding acoustic insulation designed to reduce noise and absorb sound traveling from room to room.

Thermafiber mold icon

Mold Resistant

Mineral Wool is made of an inorganic material that will not promote the growth of mold or retain moisture.

Supplies needed for Thermafiber project

Easy to Install

Thermafiber insulation is easy to install with minimal PPE required.

diagram of Thermafiber install

Measure and Cut

Thermafiber insulation is easy to cut with a serrated knife for custom fitting around electrical boxes, pipes, ductwork, wiring or between nonstandard studs and joists.

diagram of Thermafiber Install

Squeeze and Insert

Thermafiber insulation is flexible and pliable; simply squeeze the sides to compress the insulation and insert into the desired wall.

diagram of Thermafiber install

Release and Expand

Once in place, Thermafiber insulation naturally expands to fill in the space, creating a snug, custom fit.

Thermafiber recycled content icon

Recycled Content

Thermafiber Mineral Wool Insulation is composed of at least 70% recycled content which means you can help protect your home while protecting the environment.

Thermafiber product with logo

Benefits of Mineral Wool

Thermafiber Mineral Wool Insulation products are non-combustible, mold-resistant, non-corrosive and non-deteriorating. (ASTM C 1338)

Thermafiber Fire and Sound package

Thermafiber Fire and Sound Guard

Thermafiber Fire and Sound Guard insulation is designed to provide exceptional acoustical control and fire resistance.

House diagram for Thermafiber Fire and Sound

Where to Install

Thermafiber Fire and Sound Guard insulation is for use in interior walls, floors and ceilings.

Thermafiber UltraBatt Package

Thermafiber UltraBatt

Thermafiber UltraBatt insulation is a dense, semi-rigid batt designed to provide excellent thermal insulation, fire resistance and noise control.

House diagram for Thermafiber UltraBatt

Where to Install

Thermafiber UltraBatt insulation is for use in exterior walls, ceilings, cathedral ceilings, basement walls and crawlspaces.

Thermafiber Fire and Sound Guard mineral wool is designed to provide exceptional acoustic control and fire protection in interior walls as well as floor and ceilings in residential and light commercial construction. Fire and Sound Guard is fire resistant to temperatures above 2000°F allowing for additional time to exit the structure in the event of a fire. It is available for wood and steel construction.
  • Dimensions: 3.91 ft. x 3 in. x 15 in., 10 pieces (49 sq. ft. / bag)
  • 24 bags/pallet = 240 pieces/1176 sq. ft.
  • Insulation offers sound proofing benefits by helping to reduce unwanted noise
  • Fire resistant to temperatures above 2,000°F
  • Mold resistant
  • Minimum 70% recycled content
  • Unfaced Insulation: does not have a vapor retarder
  • Flexible Insulation is easy to cut and install, allowing it to conform to building shapes and construction irregularities
  • Thermafiber Fire & Sound Guard mineral wool insulation batts are designed to provide exceptional acoustic control and fire protection in interior walls
  • Step 1 of installation: Measure and cut Insulation
  • Step 2 of installation: Squeeze and insert Insulation into desired space
  • Step 3 of installation: Release and let product expand within the wall
  • Shop all Owens Corning Thermafiber Mineral Wool Insulation here
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.
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Specifications

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Questions & Answers

10Questions
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Q:Can this product be used for exterior walls as well a interior? Also, any suggestions for a vapor barrier here in western New York?
by|Mar 1, 2022
1 Answer
Answer This Question

A:  Hello Vern, Thermafiber Fire and Sound Guard is intended for use on interior walls for acoustical purposes. It does not have an R-value assigned to it. In regards for vapor retarders we suggest checking with your local building codes for requirements. Thank you for your inquiry!

by|Mar 2, 2022
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    Q:can I get a box or a roll of fire wool??
    by|Feb 23, 2022
    1 Answer
    Answer This Question

    A:  Hello Chicago, please check with your local Home Depot for product availability and minimum purchasing requirements. Thank you for your inquiry!

    by|May 8, 2022
      1 found this answer helpful
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      Q:may this be installed under the floor of a raised house
      by|Feb 4, 2022
      1 Answer
      Answer This Question

      A:  Hello Chris, Thermafiber Fire and Sound Guard is designed for use as an acoustical insulation on interior walls. The Fire and Sound Guard has not been tested for R-value. Thank you for your inquiry!

      by|Feb 7, 2022
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        Q:What's best for sound barrier and insulation
        by|Nov 9, 2021
        1 Answer
        Answer This Question

        A:  Hello Al, the amount the insulation installed within an assembly assist with noise absorption is dependent on the other components within the wall assembly. To better assist you we will need additional information. Please contact Owens Corning at 1-800-Get-Pink (438-7465). Thank you for your inquiry!

        by|Nov 10, 2021
          Showing 1-4 of 10
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          Customer Reviews

          4.6 out of 5
          (11)
          • 4.6
            out of 11 reviews
          • 100%recommend this product
          Filter by:
          Showing 1-10 of 11 reviews
          very good sound deadening material, good insulation....
          very good sound deadening material, good insulation.
          by
          • Verified Purchase
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          by
          • Verified Purchase
          Product didn't cut near as well as Rockwool. I...
          Product didn't cut near as well as Rockwool. I tried a couple of packages but am now back to Rockwool.
          by
          • Verified Purchase
          The insulation was easy to put up and dust free...
          The insulation was easy to put up and dust free
          by
          • Verified Purchase
          by
          • Verified Purchase
          Only thing I don’t like is they clearanced out the...
          Only thing I don’t like is they clearanced out the R-15 and I ended up with part R-15 and part R-13. The R-13 is more of a yellow color and you don’t get as much per bundle. As far as actual performance goes works great and easy to install. Really blocks sound and gives a great thermal barrier.
          by
          • Verified Purchase
          Great for between mud room and living room....
          Great for between mud room and living room.
          by
          • Verified Purchase
          Noice
          Highly recommend just wasn't good as a coat. Real itchy!
          by
          Response from OwensCorningApr 5, 2022
          Thank you for choosing Owens Corning Thermafiber!
          • Verified Purchase
          • Recommended
          The Best kind of Insulation
          It’s a very safe and pretty natural product. At Home Depot when I was looking for it didn’t have a clue what I wanted was Mineral of Rock Insulation. It can be heated to extreme temperatures without catching fire. Most are good till a 1,000 degrees to 2,000 degrees. Plus insulates great!!
          by
          • Verified Purchase
          • Recommended
          This stuff worked well for the purpose. It was easy to open the packaging and stuff into our wall...
          This stuff worked well for the purpose. It was easy to open the packaging and stuff into our walls. It is extremely dusty, so I recommend using eye, nose, and mouth protection (especially if you're installing above your head) during installation. We used a steak knife to cut it (bc that's how professional we are) but it easily tears. As for the sound barrier, we quickly noticed the difference as it went up, so we are happy with it.
          by
            • Recommended
            Showing 1-10 of 11 reviews

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