Owens Corning R-21 Thermafiber Fire and Sound Guard Plus 5.5" x 24" x 48" (16 Packs)
SKU: 60517751819

Owens Corning R-21 Thermafiber Fire and Sound Guard Plus 5.5" x 24" x 48" (16 Packs)

Sale price$1348.97 Regular price$1498.86
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Description

Owens Corning R-21 Thermafiber Fire and Sound Guard Plus 5.5" x 24" x 48" (16 Packs)R 21 Thermafiber Fire & Sound Guard Plus Mineral Wool Batts, 16 packs Owens Corning Thermafiber Fire and Sound Guard Plus delivers R 21 thermal performance with superior fire and acoustic control for residential and light commercial walls. Semirigid mineral wool batts are easy to cut and fit into 2x6 wood stud cavities, resisting moisture, mold, and deterioration for long lasting comfort. Key Features: Triple Protection: Thermal R 21 performance plus

R-21 Thermafiber Fire & Sound Guard Plus Mineral Wool Batts, 16 packs

Owens Corning Thermafiber Fire and Sound Guard Plus delivers R-21 thermal performance with superior fire and acoustic control for residential and light commercial walls. Semi‑rigid mineral wool batts are easy to cut and fit into 2x6 wood stud cavities, resisting moisture, mold, and deterioration for long-lasting comfort.


Key Features:

  • Triple Protection: Thermal R-21 performance plus fire resistance and exceptional sound control
  • Easy Fit Batts: Semi‑rigid mineral wool cuts cleanly and installs snugly around irregularities
  • Durable & Safe: Non‑combustible, non‑corrosive, moisture‑ and mold‑resistant construction
  • Sustainable Choice: Contains up to 70% recycled content, ICC‑ES verified
  • Versatile Applications: Ideal for interior/exterior walls, ceilings, basements, and floors

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Mineral Wool Insulation
R-Value R21
Faced or Unfaced Unfaced
Roll or Batt Batt
Product Thickness 5.5 in
Product Width 23 in
Product Length 47 in (3.91 ft)
Bag Size 3.91 ft x 23 in x 19 in
Number of Pieces 16 bags
Cover Area Per Bag 45.04 sq ft
Total Coverage Area 720.64 sq ft
Compatible Install Surface Plywood
Insulation Location 2x6 Wall
Product Weight 41.29 lb
Pallet Width 48 in
Pallet Depth 48 in
Pallet Height 92 in
Pallet/Pack Quantity 1
Warranty 3 Year Limited Warranty

Frequently Asked Questions (FAQ):

Q: Is this insulation faced or unfaced?
A: Unfaced mineral wool batts.


Q: What wall framing is it designed for?
A: Sized for 2x6 wood stud walls; each batt is 5.5 in. thick, 23 in. wide, and 47 in. long.


Q: How many bags are included and what is the total coverage?
A: This pallet includes 16 bags; coverage per bag is approximately 45.04 sq. ft. (total around 720.64 sq. ft.).


Q: Can I cut the batts to fit around pipes and boxes?
A: Yes—use a serrated knife; batts are easy to trim and fit around obstacles.


Q: Is the product non-combustible and mold resistant?
A: Yes—mineral wool is non-combustible (ASTM E136) and tested mold resistant (ASTM C1338).


Quiet, Fire‑Smart Comfort for Modern Walls

These R‑21 mineral wool batts bring a refined calm to the home, softening sound while wrapping walls in resilient thermal protection. The semi‑rigid texture creates a precise, tailored fit that looks as smart as it performs. Layer it behind bold architectural finishes in bedrooms or media rooms for a whisper‑quiet backdrop. It’s a discreet luxury—fire‑resistant, durable, and effortlessly elevated.


Upgrade your walls with Thermafiber Fire & Sound Guard Plus for 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:
  1. Standard Shipping : 3-10 business days
  • 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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60517751819

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Alice
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★★★★★ 5
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Size: 1.5 Ounce (Pack of 5)
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Reviewed in the United States on March 30, 2026
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E.J.
Port Orchard, US
★★★★★ 4
Helpful but pricey
Size: 1.5 Ounce (Pack of 5)
This is a helpful product. Too bad it’s so pricey though.
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Vdubya
Houston, US
★★★★★ 5
Very helpful
Size: 1.5 Ounce (Pack of 5)
My husband had throat cancer approximately 5 years ago. Treated with chemo and radiation. The radiation burned his saliva glands. This really helps him keep moisture in his mouth. I have it on an auto delivery every 6 weeks (pack of 6)
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Jay P. Francis
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★★★★★ 5
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Size: 1.5 Ounce (Pack of 5)
This product and xylitol lozenges by xylimelt plus taping my mouth closed as night for sleep make for a comfortable solution to my radiation induced dry mouth condition. Recommended.
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