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.
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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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viar
West Palm Beach, US
★★★★★ 5
VERY GOOD
Color: Dark Brown
VERY GOOD
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Reviewed in the United States on May 12, 2026
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haley
Chelsea, US
★★★★★ 4
slightly annoying to hang
Color: Brown
A little annoying to hang but look great and seem to be holding up well! I have heavy plants on them and no issues at all!
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Reviewed in the United States on August 11, 2025
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Evan Coffey
Chelsea, US
★★★★★ 5
Love these
Color: Brown
Looks great and holds up
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Reviewed in the United States on March 8, 2026
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MRH
Port Orchard, US
★★★★★ 5
Functional, Look Great
Color: Brown
These were nice corner shelves that were easy to install, and look great. There are plenty of other options on Amazon that offer more shelves and/or at a lower price, but these ones look nicer than most. Overall they're pretty easy to install. It's not exactly a two-person job, but it is easier if you have help - someone to hold the shelf and a level, and the other to mark the holes. My only other recommendation is to check your L-brackets before you do anything. Some come bent inward, some bent outward. If they're really crooked it will make it hard to wedge the shelf into the corner and may result in uneven measurements/holes, so make sure you straighten them out first.
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Reviewed in the United States on February 25, 2025
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Verified Purchase
Zara J
Boise, US
★★★★★ 5
Corner shelf
Color: Brown
Great product easy to install
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Reviewed in the United States on December 29, 2025

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