SKU: 73356335807

Owens Corning R-15 Thermafiber Fire and Sound Guard Plus Mineral Wool Insulation Batts, 3.5 in. x 24 in. x 48 in. (16 Packs)

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Description

Owens Corning R-15 Thermafiber Fire and Sound Guard Plus Mineral Wool Insulation Batts, 3.5 in. x 24 in. x 48 in. (16 Packs)R 15 Thermafiber Fire & Sound Mineral Wool Batts (16 Packs) Owens Corning Thermafiber Fire and Sound Guard Plus batts deliver R 15 thermal performance with exceptional fire resistance and sound control. These unfaced mineral wool batts fit 2x4 walls and are easy to cut and install around irregularities for a snug fit in interior or exterior walls. Key Features: Triple Protection: Combines thermal insulation, superior sound attenuation, and fire

R-15 Thermafiber Fire & Sound Mineral Wool Batts (16 Packs)

Owens Corning Thermafiber Fire and Sound Guard Plus batts deliver R-15 thermal performance with exceptional fire resistance and sound control. These unfaced mineral wool batts fit 2x4 walls and are easy to cut and install around irregularities for a snug fit in interior or exterior walls.


Key Features:

  • Triple Protection: Combines thermal insulation, superior sound attenuation, and fire resistance in one product.
  • Durable Mineral Wool: Non-combustible, moisture-resistant, mold-resistant, and non-corrosive for long-term performance.
  • Easy Installation: Unfaced batts are simple to cut and fit around outlets, pipes, and non-standard stud spacing.
  • Optimized for 2x4 Walls: 3.5 in. thickness sized for wood studs; each bag covers about 60 sq. ft.
  • Sustainable Choice: Contains up to 70% recycled content, verified by ICC-ES.

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Mineral Wool Insulation
R-Value R-15
Form Batt
Faced or Unfaced Unfaced
Intended Install Location 2x4 Wall; Interior and Exterior Walls
Compatible Install Surface Plywood
Product Thickness 3.5 in.
Product Width 23 in. (web variant also lists 24 in.)
Product Length 47 in. (3.91 ft)
Pieces per Bag 8 pieces per bag (60.06 sq ft coverage per bag)
Number of Bags in Pack 16
Coverage Area (Total) 720 sq ft per 16-bag pallet
Bag Size 3.9 ft x 23 in x 16 in
Pallet Dimensions 48 in W x 48 in D x 92 in H
Pallet Weight 785 lb
Product Weight 49.05 lb
Features Fire resistant, mold resistant, non-corrosive, moisture-resistant, non-deteriorating
Recycled Content Approximately 70% recycled content (ICC-ES verified)
Warranty 3-Year Limited Warranty

Frequently Asked Questions (FAQ):

Q: What size framing is this insulation designed for?
A: These R-15 unfaced mineral wool batts are 3.5 in. thick and fit standard 2x4 wood-stud walls.


Q: Is the product fire rated?
A: Yes. Mineral wool is naturally non-combustible and meets ASTM E136 for non-combustibility.


Q: Can it help with sound control?
A: Yes. Thermafiber provides excellent sound attenuation for bedrooms, bathrooms, and media rooms.


Q: Is it difficult to cut and install?
A: No. Use a serrated knife to measure, cut, squeeze, and insert; the batts expand for a snug fit.


Q: Is the insulation faced?
A: No, these are unfaced mineral wool batts.


Quiet Strength, Fire-Smart Warmth

This insulation is the silent hero behind walls—elevating comfort while keeping the aesthetic calm and collected. Its mineral wool composition delivers a tailored, architectural feel with crisp, dense batts that install neatly. Pair it with natural wood finishes and matte paints to heighten acoustic serenity in bedrooms or home theaters. Consider it an essential layer of luxury living—where performance and poise meet.


Upgrade your walls with R-15 Thermafiber and enjoy quieter, safer, energy-smart comfort—add to cart today.

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 73356335807

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4.8 ★★★★★
Based on 15 reviews
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Verified Purchase
Eustace
Draper, US
★★★★★ 5
Nice and Sturdy. Great quality
Color: Dark Black
This a very well built sturdy chair. It was easy to put together and it came very fast in the mail. I have had 2 other office chairs made by other compaines and they were nice but they both seemed a little loose and not solid enough. they all lasted less than an year. This one is solid, well built and will likely last a lone time. It is easy to adjust also. Its nice and wide also.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
A
Verified Purchase
Angel Perez
Houston, US
★★★★★ 5
Great value
Color: Dark Black
Great size and comfort. Very fair price for the quality of the piece. I like the back support and mobility.
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Reviewed in the United States on May 18, 2026
P
Verified Purchase
Paige Donovan
Omaha, US
★★★★★ 5
Great find!!
Color: White Rose Velvet, Color: White Rose Velvet
This thing rocks. I hope it lasts longer than my last gaming chair bc it was double the price. It arrived days earlier than estimated, is soft, comfortable, and really pretty. I did not love the instructions, but I figured out assembly without too much trouble. It reclines without falling over and goes up and down smoothly. My cats immediately love it, so I’m really happy! Let’s hope it withstands longevity.
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Reviewed in the United States on June 7, 2026
L
Verified Purchase
Lady
West Palm Beach, US
★★★★★ 5
Great and comfy
Color: White
This is genuinely such a good chair and super comfy, the assembly was a little confusing at first but it’s very simple once you get started. I’m 5’2 and it’s nice and big, you can sit however you want and although it is expensive I do think it’s worth it. You can fully recline down to sleep if you wanted as well. It’s nicely designed and sturdy. Definitely get it if you are thinking about it!!
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Reviewed in the United States on June 5, 2026
K
Verified Purchase
k
Lake Worth, US
★★★★★ 5
LIFE-CHANGING. The only chair you'll ever want or need.
Color: Black
So... This chair has absolutely changed my life. I don't often leave reviews, but this is WORTH IT. I want one in every room in my home. Just as the other reviewer with the 'life-changing chair' title to their review: I've had 100% the same experience - especially as someone who sits 3,000 different ways w/ ADHD lol. So, in addition to agreeing with all those comments... I'll just add a few more thoughts here to further convince you: - I received the Cream/Teddy one as a Christmas gift and have literally have looked forward to sitting it in for work every. single. morning. for work. - I *ALSO* purchased a second one in the black velvet one to gift to my partner and his experience has also been 'life-changing.' (The black velvet is definitely sleeker looking, almost a teeny slippery, but just beautiful fabric. Love it. A note here: the fabric came with a crease, which steamed out no problem.) - I sit and edit websites and photo/video everyday, all day, for work, and I also spend a good chunk of my time gaming with my partner. (Now we are *both* very comfortable for those longer 5+ hour sessions.) - Previously I had tried the viral criss-cross chair and while it was cute and great at first, it just didn't hold up and started causing numb spots on my lower back after ~2 hours. Not an all-day chair at all. This one has solved all back issues for me! Size: definitely big & the back is quite a tall height but it makes you feel cozy, supported, *and* you can lean back, recline, adjust every little bit you like, have space for a velcro cat, sit criss-cross or 3,000 other ways as a ADHDr trying to sit all day, lol, etc. -- all things I was looking for in an upgrade. For reference, it fits someone 5'5" to 6"5" just as comfortably. I'd say it feels on the bigger side for someone under 6 foot, but personally, I love that. It's like a real adult chair - much needed if you sit for 6+ hours a day. Leg rest: Easy to flip out, I love using this so you can sit cross cross AND lean back, or just as extra 'accommodate the cat' space. Noise level: the arms clicking down/adjusting is loud, but I don't find myself adjusting them all that often. Especially when my cat claims this chair first, anticipating the start of our work day. Comfort level: 100% and 2.5-3 months in, it's still going strong and I'm more obsessed each day. *To the store: THANK YOU for making this chair, please never stop. *To the person reading this review: BUY IT. Let this be the review to convince you - your cat will take over the chair and you'll have to fight over it, it's that comfy. I mean, they know best, do they not?
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Reviewed in the United States on February 15, 2026

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