SKU: 18782292658

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

Sale price$13.37 Regular price$14.85
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Owens Corning Thermafiber UltraBatt R-15 3.5" x 24" x 48" (16 Bags)Thermafiber UltraBatt R 15 Mineral Wool Insulation, 3. 5" x 24" x 48" Professional grade mineral wool batts designed for superior thermal performance, fire resistance, and sound control in residential and light commercial walls. Semi rigid, higher density batts install quickly and resist moisture, corrosion, deterioration, and mold. Key Features: Thermal Performance: R 15 mineral wool batts deliver reliable insulation for 2x4 wall cavities Fire

Thermafiber UltraBatt R-15 Mineral Wool Insulation, 3.5" x 24" x 48"

Professional-grade mineral wool batts designed for superior thermal performance, fire resistance, and sound control in residential and light commercial walls. Semi-rigid, higher-density batts install quickly and resist moisture, corrosion, deterioration, and mold.


Key Features:

  • Thermal Performance: R-15 mineral wool batts deliver reliable insulation for 2x4 wall cavities
  • Fire Resistance: Non-combustible composition with robust fire performance for added safety
  • Sound Control: Dense fiber structure helps reduce noise transfer between rooms
  • Moisture & Mold Resistant: Inorganic fibers resist moisture, corrosion, and mold growth
  • Easy Installation: Semi-rigid batts fit snugly in standard framing for faster, cleaner installs

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Mineral wool batts
Series Thermafiber UltraBatt
R-Value R-15
Thickness 3.5 in
Dimensions per batt 24 in x 48 in
Pack Quantity 16 bags
Fire Rating reference ASTM C 1338 (mold resistance standard cited on web data)
Application Residential and light commercial walls; exterior walls
Features Non-combustible; moisture, corrosion, deterioration, and mold resistant; sound control; higher density semi-rigid batts

Frequently Asked Questions (FAQ):

Q: What framing does this fit?
A: The 3.5-inch thickness is designed for standard 2x4 wall cavities; each batt measures 24" x 48".


Q: Is this product combustible?
A: No, Thermafiber mineral wool is non-combustible and provides enhanced fire resistance.


Q: Can it be used in exterior walls?
A: Yes, it's suitable for exterior wall insulation in residential and light commercial applications.


Q: Does it resist mold and moisture?
A: Yes, the mineral wool fibers are resistant to moisture and mold growth.


Q: How many bags are included?
A: This listing specifies a pack of 16 bags.


Elevate Walls with Quiet, Fire-Safe Warmth

UltraBatt’s dense mineral wool brings a refined calm to interiors—quieting rooms while cocooning them in consistent warmth. Its non-combustible fibers and crisp, semi-rigid form speak to performance-driven design. Pair it with clean-lined drywall and matte finishes for an elevated, modern envelope. It’s a discreet essential that underpins luxurious, resilient living.


Choose UltraBatt R-15 today for safer, quieter, and energy-efficient walls that install with confidence.

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: 18782292658

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Amazon Customer
Phoenix, US
★★★★★ 4
Nice Umbrella for the Price
Size: 9ft, Color: Red
Truly surprised at the quality of this umbrella. Great deal for the price. I did see some reviews prior to buying that there were issues with the tilting mechanism/crank so I am giving it a 4 until I have it for more than a few days to see how it all works out.
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Reviewed in the United States on April 27, 2026
W
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Wild Roots Farmstead
Omaha, US
★★★★★ 5
Honestly impressed would recommend
Size: 9ft, Color: Beige, Size: 9ft, Color: Beige
I’m honestly really impressed with this patio umbrella! It’s lightweight enough that it was easy to move and set up, but it still feels sturdy and stable once in place. The fabric material feels much nicer than the cheap plastic-like material some outdoor umbrellas use — it looks clean, durable, and gives really good shade. The color is beautiful and works perfectly with outdoor spaces without looking harsh or too bright. It opens smoothly, provides a large amount of coverage, and has held up great in the sun and wind so far. Definitely a thumbs up from me — great quality for the price and makes the whole patio area feel more relaxing and put together! ☀️👍
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Reviewed in the United States on May 9, 2026
S
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ShopMom
Phoenix, US
★★★★★ 5
Brightens up the whole patio!
Size: 9ft, Color: Apple Green
I am so happy with this umbrella! The "Apple Green" color is gorgeous—it’s super vibrant and really makes my backyard feel more tropical and fun. The crank is smooth and easy to use, so I don’t have to struggle to get it open, and the push-button tilt is a total lifesaver when the sun starts to dip in the afternoon. It feels much sturdier than the one I replaced; the ribs seem solid and it hasn't budged during our usual afternoon breezes. It provides a ton of shade for our table, and you can tell the fabric is thick enough to actually block the heat. If you want a pop of color and a reliable umbrella that doesn't cost a fortune, this one is perfect!
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Reviewed in the United States on April 7, 2026
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Verified Purchase
Debbie Caperton
New York, US
★★★★★ 5
High quality. Umbrella crank works smoothly. Love it!
Size: 9ft, Color: Peacock Blue, Size: 9ft, Color: Peacock Blue
This umbrella and rug, both from Amazon, look beautiful on my deck! I'm thrilled with them both! My deck is my favorite happy place! The colors are very impressive. Great price 👍
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Reviewed in the United States on May 23, 2026
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Candace Harding
Draper, US
★★★★★ 4
Mostly well made…
Size: 9ft, Color: Dark Blue, Size: 9ft, Color: Dark Blue
The umbrella itself is made out of great fabric and the color is accurate to the photo. However, we’ve had it for less than a month and the piece that controls the angle of the umbrella has already broken off. It still works, but will always be at an angle now.
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Reviewed in the United States on April 12, 2026

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