SKU: 98167696853

Owens Corning Thermafiber UltraBatt R-15 Mineral Wool Insulation, 3.5 in x 15 in x 47 in (8 Batts, 39.2 sq ft)

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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 Mineral Wool Insulation, 3.5 in x 15 in x 47 in (8 Batts, 39.2 sq ft)Thermafiber UltraBatt R 15 Mineral Wool Wall Insulation Professional grade mineral wool batts engineered for 2x4 walls deliver R 15 thermal performance with fire and mold resistance. Semi rigid batts are easy to cut and fit around irregularities, providing 39. 2 sq ft of coverage per package for interior or exterior stud walls. Key Features: R 15 Performance: Ideal for 2x4 wood stud walls to boost thermal comfort and energy savings Mineral Wool

Thermafiber UltraBatt R-15 Mineral Wool Wall Insulation

Professional-grade mineral wool batts engineered for 2x4 walls deliver R-15 thermal performance with fire and mold resistance. Semi-rigid batts are easy to cut and fit around irregularities, providing 39.2 sq ft of coverage per package for interior or exterior stud walls.


Key Features:

  • R-15 Performance: Ideal for 2x4 wood-stud walls to boost thermal comfort and energy savings
  • Mineral Wool Construction: Fire resistant, moisture and mold resistant, and non-corrosive
  • Easy to Install: Semi-rigid batts cut cleanly and friction-fit around pipes, wires, and odd spaces
  • Unfaced Design: No vapor retarder, suitable where vapor control is handled separately
  • Package Coverage: 3.5 in thick x 15 in wide x 47 in long; 8 pieces covering 39.2 sq ft

Specifications Table:

Specification Details
Insulation Type Mineral wool batt
R-Value R-15
Dimensions (each batt) 3.5 in thick x 15 in wide x 47 in long
Pieces per Pack 8
Coverage Area 39.20 sq ft per package
Facing Unfaced (no vapor retarder)
Application Interior and exterior 2x4 wood-stud walls
Fire Resistance Non-combustible; provides fire resistance
Mold/Moisture Resistance Moisture- and mold-resistant
Cut/Install Semi-rigid; easy to cut and friction-fit
Brand Owens Corning Thermafiber UltraBatt

Frequently Asked Questions (FAQ):

Q: Is this insulation faced or unfaced?
A: Unfaced; it does not include a vapor retarder.


Q: What wall framing is it designed for?
A: Sized for 2x4 wood-stud walls at 16 in on center (15 in cavity width).


Q: How many batts are in a package and what area do they cover?
A: 8 batts per package covering 39.2 square feet.


Q: Can it help with fire and mold resistance?
A: Yes. Mineral wool is non-combustible, fire resistant, and resistant to moisture and mold.


Q: Is it easy to cut and fit?
A: Yes. The semi-rigid batts cut easily and friction-fit into stud cavities, including around obstructions.


Sculpted Warmth with Quiet Confidence

Thermafiber UltraBatt slips into the wall like a tailored suit, bringing a serene hush and cocooning warmth to modern living. Its mineral wool texture adds a refined, architectural rigor—crafted for precision and performance. Use it to elevate bedrooms or media rooms where calm is a luxury, pairing with crisp drywall and natural woods for an effortless finish. Consider it the invisible layer of indulgence that makes a home feel truly composed.


Upgrade your walls with UltraBatt R-15 today and enjoy quieter, more comfortable rooms with lasting energy savings.

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
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  • 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: 98167696853

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Nicole S.
Bozeman, US
★★★★★ 3
Missing items
Color: Sky Blue, Size: 16
Was missing the tie that is supposed to come with it and it looked like it was tried on and thrown back in the bag. The sleeve to the jacket were rolled up.
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Reviewed in the United States on December 7, 2025
A
Alley Cat on a Homestead
Houston, US
★★★★★ 5
Excellent Quality, Great Value, Great Look. Highly Recommend
Very well-made, there are some minor imperfections in the cuff sewing that aren't really noticeable when on. Liner is quality, color is spot on, and it fits true to size. If you're in the market for a toddler blazer and pants, you can't go wrong with this one in terms of quality, price, and the cut is perfect for a very polished look. There were a few loose strings to be clipped, but everything was correctly sewn and well. None of them affected the seam strength. The pants have a button and elastic on the waistband to make adjusting the waist size easier.
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Reviewed in the United States on November 14, 2025
A
Amazon Customer
Louisville, US
★★★★★ 5
Great boys slim fit suit for weddings, church, or special events
Color: Medium Grey, Size: 12
Great kids suit. Comes with a jacket, pants, and tie. Does not have a shirt. Fits as expected. Classic cut on the lapels. Great quality materials. Well made pants and jacket. The color is consistent without any fade or dark spots that can happen with lower quality fabrics. Looks great on. My son loves it. Says it is not restrictive, he can move easily in it. Highly recommend for church, special events, weddings, etc.
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Reviewed in the United States on October 22, 2025
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Mommynificent
Natrona Heights, US
★★★★★ 5
Nice high-quality, light weight suit for a tween!
Color: Navy Blue, Size: 10
This is such an attractive suit for a tween boy! My son loves dressing up, and this is his new favorite suit. He really likes the double-breasted style and the light weight of the fabric so that it isn't too hot. The tie that came with it gives major Harry Potter vibes which we weren't expecting, but he has lots of other ties that he also enjoys pairing with it. The size seems right, and it fits him well. He says it is very comfortable. I'm happy with the quality and the navy color.
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Reviewed in the United States on October 14, 2025
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A. Beauto
Grantham, US
★★★★★ 5
Stylish and great value!
Color: Medium Grey, Size: 14
This grey suit was a great find for a school ceremony and will definitely be used again. The neutral color makes it easy to pair with different shirts and ties, and it has a modern, clean-cut look. The jacket and pants fit nicely after a quick press, and the quality was better than I expected for the price. It lost a star only because the waist on the pants needed a slight adjustment, but overall, we’re very happy with it!
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Reviewed in the United States on October 10, 2025

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