SKU: 20940422469

Owens Corning R-30 Thermafiber Fire & Sound Guard Plus Mineral Wool Insulation Batt, 7.125" x 15" x 47" (3-Piece, 14.7 sq. ft.)

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Description

Owens Corning R-30 Thermafiber Fire & Sound Guard Plus Mineral Wool Insulation Batt, 7.125" x 15" x 47" (3-Piece, 14.7 sq. ft.)R 30 Thermafiber Fire & Sound Guard Plus Mineral Wool Batt Professional grade mineral wool batts engineered for superior thermal performance, sound control, and fire resistance in interior or exterior wall assemblies. These unfaced R 30 batts fit 2x8 wood studs, are moisture and mold resistant, and are easy to cut for a custom, snug fit. Key Features: High R Value Thermal Performance: R 30 batts help improve energy efficiency without degrading over

R-30 Thermafiber Fire & Sound Guard Plus Mineral Wool Batt

Professional-grade mineral wool batts engineered for superior thermal performance, sound control, and fire resistance in interior or exterior wall assemblies. These unfaced R-30 batts fit 2x8 wood studs, are moisture- and mold-resistant, and are easy to cut for a custom, snug fit.

Key Features:

  • High R-Value Thermal Performance: R-30 batts help improve energy efficiency without degrading over time.
  • Fire and Safety Rated: Non-combustible mineral wool provides fire resistance and is non-corrosive and moisture resistant.
  • Acoustic Control: Dense fibers reduce sound transmission—ideal for bedrooms, baths, and home theaters.
  • Easy, Precise Installation: Unfaced batts cut cleanly with a serrated knife and expand to fill cavities, even around irregularities.
  • Sustainable Composition: Contains approximately 70% recycled content (ICC-ES verified).

Please check the Product Data Sheet Here

Specifications Table:

Specification Details
Insulation Type Mineral Wool Insulation
Roll or Batt Batt
Faced or Unfaced Unfaced
Insulation R-Value R-30
Dimensions (each batt) 7.125 in. thick x 15 in. wide x 47 in. long
Number of Pieces 3
Coverage Area per Bag 14.7 sq. ft.
Compatible Install Surface Plywood, Wood
Insulation Location Ceiling, Floor; Interior & Exterior Walls
Insulation Features Fire Block Rated, Fire Resistant, Moisture Retardant, Mold Resistant, Soundproofing
Product Weight 23.57 lb
Batt/Roll Size 3.91 ft. x 15 in.
Bag Size 3.91 ft. x 15 in. x 19 in.
Warranty 3-Year Limited Warranty
Recycled Content Approximately 70% recycled content (ICC-ES verified)

Frequently Asked Questions (FAQ):

Q: How much area does one bag cover?
A: Each bag contains 3 batts and covers approximately 14.7 sq. ft.

Q: What stud depth does this product fit?
A: Designed for 2x8 wood stud walls; each batt is 7.125 in. thick, 15 in. wide, and 47 in. long.

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

Q: Where can I install it?
A: Suitable for interior and exterior walls, ceilings, basement walls, and floors.

Q: Does mineral wool resist mold and moisture?
A: Yes. It is moisture-resistant and tested mold-resistant per ASTM C1338.

Quiet Strength for Elevated Walls

Thermafiber’s dense, sculpted batts bring a refined calm to rooms by taming noise before it reaches your ear. I love the crisp, uniform edges—clean lines that slide into wall cavities and disappear, leaving only performance. Wrap a primary suite or home theater to create a cocoon of serenity, then layer textures and finishes with confidence. It’s a discreet luxury that makes everyday living feel tailored and tranquil.

Upgrade your walls with R-30 Thermafiber performance—add to cart and create a quieter, safer, more efficient home today.

Warranty

Installation

Shipping Notes
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SKU: 20940422469

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Reviewed in the United States on June 4, 2026
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Debbie B.
Massapequa, US
★★★★★ 5
An incredible guide for your Advent journey.
Format: Paperback
Thank you Miriam for bringing us this beautiful and deep guide for our Advent journey. I used it for the first time in 2023, and will definitely be using it again in 2024. I loved and looked forward to every day that I sat with the daily passage. Miriam guides us into daily Scripture, and includes questions for us to meditate on and apply those passages. In addition, she adds her own meditation, which offers a rich perspective. It is accompanied by Lilias Trotter's own perspective through her words and wisdom and gorgeous art. The author invites us into self-reflection multiple times through each daily passage and includes poetry and song that binds each daily message. I will definitely give these as gifts for next year, and I am so looking forward to walking through it again next Advent. It will be interesting to see the Lord's living and active wisdom reveal itself year after year. I would highly recommend keeping a journal as you dive in to this rich, rewarding journey.
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Reviewed in the United States on December 27, 2023
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Carol Benoy
Lake Worth, US
★★★★★ 3
Good news, bad news.
Format: Paperback
I like the product, but because it was inadequately packaged, the top of the book is imperfect. It's certainly readable, but if I am paying full price, I expect a perfect copy.
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Reviewed in the United States on September 24, 2024
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Sotol Observer
Birmingham, US
★★★★★ 5
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This a very, very informative book about the financial crash of 2008 and its lengthy recovery. The British author is a fine writer and definitely appears to master the subject. His background is as an economic historian and his approach to the financial collapse is thru the lens of political economy. For a European, he is very charitable towards the failures of the US markets and the responses of the US govt in the crisis. In fact, he is much more critical of the Germans and the British and the EU govts in their involvement in the crisis and their failure to more effectively guide the Eurozone out of the financial crisis. The book is somewhat dense and daunting and is 616 pages of text. Definitly not for the faint of heart or those who are not somewhat financially and economically literate. It does not lend itself to speed reading. A glossary and list of abbreviations would have been very helpful--as other commenters have suggested. Abbreviated acronyms of organizations, treaties, agreements,govt agencies, etc. come flying fast and furious. Still, with due and diligent effort on the part of the reader, you can see how very well the author knits his technocratic financial narrative together. The negative reviews often seem poorly informed. It's a difficult book to get thru. Some readers appear to dislike the author because he is a Keynesian liberal. I understand that, but they should note that he tends to be very positive about US govt financial leadership leading the world out of the crisis. Some don't like the fact that he thinks Trump is a grifter. Unfortunately, Trump is, irrefutably, a grifter and a con man. The only areas where I found myself disagreeing with the author were on the issues of immigration and protectionism. The Eurozone and the US cannot support unrestricted immigration. There are too many millions in the world of 8 billion people who would kick down the gateways of either entitity to gain entry. Unrestricted immigration is an existential threat to all the Western countries involved. Sober assessment of reality is something other than "racist". "Realistic" is a far more accurate term. The author is a classic liberal and against national "protectionism". However, this is 2023. The book was written in 2017. Much water has passed under the bridge since then. Countries are political entities with borders. Too often--as the writer points out--economic and financial advisors forget the "political" part of "political economy". Trump's legions are there to remind them. At least they are good for something. Protecting your economy from essential foreign supply chain failures and from hostile foreign competitors is just good governance. And insuring that others share in general prosperity besides coastal elites is another part of good governance. "Flyover Country" is every bit as important as the two coasts. Probably more so. Never forget the "political" part of "political economy".
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Reviewed in the United States on July 29, 2023

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