SKU: 60672226339

Owens Corning Thermafiber UltraBatt R-15, 3.5" x 16" x 48" Mineral Wool Insulation (24 Bags)

Sale price$636.08 Regular price$706.76
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Owens Corning Thermafiber UltraBatt R-15, 3.5" x 16" x 48" Mineral Wool Insulation (24 Bags)Thermafiber UltraBatt R 15 Mineral Wool Batts, 3. 5" x 16" x 48" (24 Bags) Dense, semi rigid mineral wool batts deliver R 15 thermal performance with outstanding fire resistance and sound control. Sized for wood stud framing, these 3. 5" x 16" x 48" batts install quickly and expand to a snug fit in exterior walls. Key Features: High Thermal Performance: R 15 mineral wool batts help reduce energy loss in exterior walls Fire Resistance: Noncombustible

Thermafiber UltraBatt R-15 Mineral Wool Batts, 3.5" x 16" x 48" (24 Bags)

Dense, semi-rigid mineral wool batts deliver R-15 thermal performance with outstanding fire resistance and sound control. Sized for wood stud framing, these 3.5" x 16" x 48" batts install quickly and expand to a snug fit in exterior walls.


Key Features:

  • High Thermal Performance: R-15 mineral wool batts help reduce energy loss in exterior walls
  • Fire Resistance: Noncombustible insulation with ASTM C1338 compliance and 25 flame spread
  • Sound Control: Dense fibers dampen noise between rooms and floors
  • Easy Installation: Flexible batts cut with a serrated knife and expand to fill cavities
  • Moisture & Mold Resistant: Noncorrosive, nondeteriorating material with minimum 70% recycled content

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Material Type Mineral Wool
Product Type Batt
R Value 15
Thickness 3.5 inches
Length 48 inches
Width 16 inches
Installation Wood Stud
Fire Rating ASTM C 1338
Flame Spread 25
Batts per Bag 5
Coverage per Bag (3.5" x 16" x 48") 32 sq ft

Frequently Asked Questions (FAQ):

Q: What framing is this size intended for?
A: The 3.5" x 16" x 48" batts are designed for wood stud framing in exterior walls.


Q: How many batts come per bag and what is the coverage?
A: There are 5 batts per bag; the 3.5" x 16" x 48" size provides approximately 32 sq ft per bag.


Q: Can I cut the batts to fit around obstacles?
A: Yes. Use a serrated knife to measure, cut, and fit around boxes, pipes, or non-standard cavities.


Q: Is this insulation moisture or mold resistant?
A: Yes. UltraBatt mineral wool is moisture resistant, mold resistant, noncorrosive, and nondeteriorating.


Q: Does it help with soundproofing?
A: The dense, semi-rigid mineral wool fibers provide effective sound control between rooms and floors.


Elevate Comfort and Quiet with Sculpted Mineral Wool

This UltraBatt brings a tailored, architectural sensibility to your walls—clean, dense, and impeccably functional. Its mineral wool composition delivers a hushed serenity while bolstering thermal and fire protection. Pair it with refined wall finishes and natural woods to craft a space that feels cocooned and composed. A smart, luxurious foundation that lets design—and life—shine effortlessly.


Upgrade your walls with UltraBatt R-15 for efficient comfort, safer living, and quieter rooms—add to cart today.

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: 60672226339

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4.5 ★★★★★
Based on 25 reviews
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Product Reviews
R
Verified Purchase
ron
Alexandria, US
★★★★★ 5
Happy with my purchase
Style: Industrial / Rustic, Style: Industrial / Rustic
These shelves are fantastic! The quality is excellent, assembly was quick and easy, and they look great once installed. They have a much more expensive appearance than their price suggests. I’m very happy with my purchase and would highly recommend them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
L
Verified Purchase
Lisa Brown
Massapequa, US
★★★★★ 5
Nice product
Style: 2 Tier with Tower Bar
Great quality, great material. Easy to install. Looks great on the wall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
H
Verified Purchase
HA
Los Angeles, US
★★★★★ 5
Great sturdy shelf, install can be a bit challenging
Style: 3 Tier with Tower Bar, Style: 3 Tier with Tower Bar
The shelf is great and does exactly what I wanted it to do. I will note that the instructions indicate you’re supposed to use a 6 mm drillbit to install the anchors which comes out to about a 15/64 size. I would recommend a quarter inch drillbit because I was really struggling to get those anchors in there. Several folks also said that it’s easiest to install with two people, but you don’t need two people if you have some way to prop the piece up while you’re marking the hole placements to drill (and I would definitely recommend having a level on it the entire time you’re working to make sure that it’s correct). Lastly, it is easiest to put it together first, and then mark the drill holes, put the piece aside and drill and install the anchors, and then screw it in. I will also caution folks to not overtighten the pipe connections, because the pipes will end up in a wonky direction in the end. Overall I am extremely happy with this piece and certainly for the price!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Easy to put together. Super cute in any room
Style: 3 Tier
I fell in love with these when we were at our kids home and we installed them for them. The way my daughter-in-law decorated them, I loved it. I ordered 3 of them. I ordered a two tier for my office, because the 3 tier was too big, and i have the 3 tier in my bathroom. They look so dang cute and finishes up the wall in those areas. They are sturdy and strong. Super easy to put together. No tools required, except when you need to hang them. It will require two people to hang them. You can put them together in less than 5 minutes. Not super heavy but strong. strong to hold several things on them. I had no parts missing. Everything came packaged very nicely. Very functional. I would definitely recommend.
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Reviewed in the United States on October 7, 2025
G
Verified Purchase
Ghall65
New York, US
★★★★★ 4
Shelf
Style: 2-tier Vintage Industrial
I’m giving a 4 star due to installation. Screws were too small for the anchors. Shelf is very nice and looks great . Took little more time than what should have been an easy hang .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

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