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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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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Reviewed in the United States on June 7, 2026
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Julia
Louisville, US
★★★★★ 5
Great frother
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Reviewed in the United States on April 22, 2026
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Dr Berry
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★★★★★ 4
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William
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