#1 Home Improvement Retailer

Internet # 312713135

Model # 1307044

Store SKU # 1005398533

23 in. x 47 in. R-15 Thermafiber Fire and Sound Guard Plus Mineral Wool Insulation Batt (16-Bags)

Covers 720 sq.ft. ($1.66 /sq.ft.)
$1195.29 /pallet
Apply Now
$undefined.00 /mo† suggested payments with months† financingApply Now
  • R-15 Mineral wool batt can be installed within exterior 2x4 wall
  • Easy to cut and install, even around construction irregularities
  • Fire resistant, mold resistant and non-corrosive
  • View More Details
Store
0 in stock
icon
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy

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.

About This Product

Thermafiber Fire and Sound Guard Plus mineral wool insulation is designed to provide excellent thermal, noise control and fire resistance in residential and light commercial construction applications. Fire and Sound Guard Plus can be used in a variety of applications, including interior and exterior walls, ceilings, basement walls and crawl spaces, these products are non-combustible, moisture-resistant, noncorrosive, nondeteriorating and mold-resistant. (Tested per ASTM C1338, Standard Test Method for Determining Fungi Resistance of Insulation Materials and Facings, ASTM International).

Highlights

  • Fire resistant: mineral wool is naturally fire resistant
  • Thermal comfort: contributes to energy efficiency with R-values that won't decrease as the insulation ages
  • Mold resistant: resists mold, fungi and is vermin-resistant due to its being an inorganic material - tested per ASTM C1338
  • Non-combustible: mineral wool is non-combustible per ASTM E136
  • Sound control: helps control noise between floors, through walls and from outdoors
  • Ease of installation: batt product that is easy to cut and install, flexibility and durability allow it to conform and friction fit
  • Recycled content: 70% recycled content, verified by ICC-ES
  • Shop all Owens Corning thermafiber Mineral Wool Insulation here
  • Measure and cut - fire and Sound Guard Plus insulation is easy to cut with a serrated knife for custom fitting around electrical boxes, pipes, duct-work, wiring or between non-standard studs and joists
  • Squeeze and insert - fire and Sound Guard Plus insulation is flexible and pliable; simply squeeze the sides to compress the insulation and insert into the desired wall
  • Release and expand - once in place, fire and Sound Guard Plus insulation naturally expands to fill in the space, creating a snug, custom fit
  • Click here to learn more about Insulation R-Values
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 312713135

Model # 1307044

Store SKU # 1005398533

Specifications

Dimensions

Cover Area Per Bag (sq. ft.)

60.06 sq ft

Coverage Area (sq. ft.)

720 sq ft

Product Length (ft.)

3.91 ft

Product Thickness (in.)

3.5 in

Product Width (in.)

23 in

Details

Bag Size

3.9 ft. x 23 in. x 16 in.

Batt/Roll Size

3.91 ft. x 3.5 in. x 23 in.

Compatible Install Surface

Plywood

Faced or Unfaced

Unfaced

Insulation Features

Fire Block Rated

Insulation Location

2x4 Wall

Insulation R-Value

R15

Insulation Type

Batt

Number of Pieces

16

Pack Size

4

Pallet Depth (IN)

48

Pallet Height (IN)

92

Pallet Weight (LB)

631

Pallet Width (IN)

48

Pallet/Pack Quantity

16

Product Weight (lb.)

49.05 lb

Returnable

90-Day

Roll or Batt

Batt

Warranty / Certifications

Warranty Information

3-Year Limited

Questions & Answers

78Questions
caret
Q:Can this be used under an enclosed porch to insulate the floor?
by|Apr 15, 2024
1 Answer
Answer This Question

A:  Hello Amanda, The Fire and Sound Guard Plus could be used but would need to be protected from the elements. We also recommend contacting your local code department for R-value and vapor retarder requirements in your area. Thank you for your inquiry!

by|Apr 16, 2024
    caret
    Q:How many pieces are in a full pallet?
    by|Nov 9, 2023
    1 Answer
    Answer This Question

    A:  Hello Yorgi, There are 128 pieces per pallet. Thank you for your inquiry!

    by|Nov 22, 2023
      1 found this answer helpful
      caret
      Q:Can this be used as exterior continuous insulation between sheathing and siding?
      by|Jul 26, 2023
      1 Answer
      Answer This Question

      A:  Hello CuriousPNW, Thermafiber Fire and Sound Guard Plus is not designed and tested for use as continuous insulation. It should not be used on the exterior side of the weather resistive barrier. Thank you for your inquiry!

      by|Oct 28, 2023
        caret
        Q:Can this be used in an unfinished basement ceiling without falling dust/particles until ceiling is finished later?
        by|Jul 4, 2023
        1 Answer
        Answer This Question

        A:  Hello KenS, The Fire and Sound Guard Plus meets the code requirements to be left exposed. Once installed if not disturbed there should not be issues with particles falling. Thank you for your inquiry!

        by|Jul 5, 2023
          Showing 1-4 of 78

          Customer Reviews

          4.6 out of 5

          • 4.6 out of 238 reviews
          • 92% recommend this product
          Filter by:
          Showing 1-10 of 238 reviews
          Inferior Product
          Got a few bats of this product as Rock Wool wasn't available. What a mistake. This stuff has a noxious rotten egg odor, the insulation media feels sub-par, and to top it off the black glass is not well mixed in so you will encounter big chunks that tear out and try to ruin your knife as you cut it. I have absolutely no idea why this product has so many five star ratings. I'm hoping the sound deadening is as good as some of the reviews say or it's a waste. The odor is concerning.
          by
          Response from OwensCorningApr 25, 2022
          Dear NotHappy --

          I am so sorry to hear about your experience. During the manufacturing process the insulation is cured in an oven. In some cases, the binder is not completely cured and may cause a burnt sugar odor. This odor should dissipate over time. That time can vary depending on the weather conditions. In many cases once the interior finish is installed you will no longer smell the insulation.

          Thank you!
          Owens Corning
            1 found this review helpful
            5 stars despite awful odor
            Mineral wool has terrific advantages over other types of insulation. You can read about them elsewhere so I won’t go into it. This is easy to cut and fairly neat to install. The one major fault I find, and you may not be willing to live with it, is the awful odor. Kind of a sweaty urine if I had to describe it, and six months later it still is apparent.
            by
              • Recommended
              4 found this review helpful
              easy to install recommend buying a insulation knife or...
              easy to install recommend buying a insulation knife or use a old bread knife to cut. could see a difference in temperature even before the sheet rock went in
              by
              • Verified Purchase
              This was very easy to cut using an insulation knife and installed between studs great. In my cas...
              This was very easy to cut using an insulation knife and installed between studs great. In my case, some of the studs spacing was not 16" centers so I had to cut the insulation into multiple pieces to get it to fit. I found you could use the studs as a guide when cutting. For example, I pushed the insulation against the left stud of a pocket and used the inner edge of the right stud as my line to cut along the insulation. This seemed to work pretty well and went quickly. This was for a bathroom and, except for one exterior wall, mainly for sound reduction and it has definitely worked on that front. I can barely hear the shower running when not in the bathroom. I also noticed that the shower wall tiles don't get nearly as cold as they used to prior to insulating the walls, so an added benefit there. One minor note is that the insulation has a distinct smell upon opening it. I didn't find it offensive, but I could certainly seeing it bothering someone else. The smell dissipates so it's not like it's a permanent concern. Overall, very happy with this purchase and would definitely use it again.
              by
                • Recommended
                2 found this review helpful
                Great product installed so easy and don't have to worry about damage from the old plaster walls. ...
                Great product installed so easy and don't have to worry about damage from the old plaster walls. the pink that was there was molded and useless. Will be picking up more well worth the extra few bucks.
                by
                • Verified Purchase
                • Recommended
                1 found this review helpful
                Did the job used it in the walls of a...
                Did the job used it in the walls of a remodeling job. Fire and sound resistant along with R15 was good for us. Easy to work with - Not fiberglass.
                by
                • Verified Purchase
                I was insulating a garage with 2x4 walls and a 2x8 ceiling. I doubled up the batts in the ceiling...
                I was insulating a garage with 2x4 walls and a 2x8 ceiling. I doubled up the batts in the ceiling to achieve R30! This would not have been possible with the other insulation design for a 2x8 cavity. What I like best about working with this product is that it stays in place. Great friction fit. The only con is some of the batts were a bit fragile. There was definitely a difference in the resiliency and integrity of a few batts, but most were fine. A couple of batts had to be handled really carefully as they were sort of brittle and crumbling. But like I said most were fine. I love the fact the batts a designed to fit 2 vertically in a 92-5/8" stud cavity without any cutting. Installing the insulation in the ways went really easy. I used an electric carving knife for the cuts and this worked wonderfully. I will never use fiberglass pink insulation again after using this type of insulation. Easier to install, better R value and better fit.
                by
                • DIY
                • Verified Purchase
                • Recommended
                2 found this review helpful
                I am a 67 year old female "rustic" DIYer. Was finally insulating an exterior concrete block wall...
                I am a 67 year old female "rustic" DIYer. Was finally insulating an exterior concrete block wall in my laundry room. Put up a stud wall, air barrier, batt insulation (THIS PRODUCT), moisture barrier and drywall. This insulation made an immediate and HUGE temperature difference in my whole basement. Recommend without reservation. This product was easy to handle and apply. Fit into a standard stud wall as stated. However, when needed to resize, was easy to cut and fit. NON-ITCHING!!!!! Looked at other products, bought some. Found this product and returned the other stuff. Best decision. (Pictures are in reverse order. Oops.)
                by
                • DIY
                • Verified Purchase
                • Recommended
                4 found this review helpful
                So far I’ve used this product to insulate my garage. The noise from the garage door opening has b...
                So far I’ve used this product to insulate my garage. The noise from the garage door opening has been noticeably dampened. I used roxul for my basement. There is very little difference between the products in my own opinion. Take care when pushing Owens into place to avoid fraying (roxul also did this). Others have used plywood for this, I managed with my hands just fine. I’m currently working on my homes exterior walls where standard fiberglass was installed, so I will update on its effect on my homes comfort. At half the price I wish I would have used in my basement. This is a quality product with great sound dampening and easy installation. I will continue to use.
                by
                • Verified Purchase
                • Recommended
                Easy to work with,I cut it with a bread knife!
                Easy to work with,I cut it with a bread knife!
                by
                • Verified Purchase
                • Recommended
                Showing 1-10 of 238 reviews