SKU: 18782292658

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

Sale price$13.37 Regular price$14.85
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 2130 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
David
Massapequa, US
★★★★★ 5
Good quality
Size: Medium, Color: Black/Assorted
Comfy and sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2025
B
Verified Purchase
Brooke
Pawtucket, US
★★★★★ 5
Favorite socks
Size: Medium, Color: Black/Assorted
These are my go to socks! Love these. Great towards sweat and different weather temperatures. Mostly use for working out and love them. Will be getting more!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2024
G
Verified Purchase
Glass
San Leandro, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
L
Verified Purchase
Lauren
Bozeman, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2025
E
Verified Purchase
Elliz
Lake Worth, US
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2021

recommand products