Owens Corning Thermafiber UltraBatt R-24 Mineral Wool Insulation, 6" x 16" x 48" (24 Bags)

Regular price $1,631.72

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Thermafiber UltraBatt R-24 Mineral Wool Batts, 6x16x48 (24 Bags)

Professional-grade mineral wool batts engineered for high thermal performance, fire resistance, and sound control. Sized 6 x 16 x 48 inches with an R-24 rating, ideal for exterior walls and other cavities in residential or light commercial builds.


Key Features:

  • High Thermal Performance: R-24 mineral wool helps improve energy efficiency in wall cavities.
  • Fire Resistant: Non-combustible fibers provide added protection and peace of mind.
  • Sound Control: Dense, semi-rigid batts reduce noise transfer between rooms.
  • Moisture Resistant: Mineral wool resists moisture, corrosion, and mold growth for long-term durability.
  • Pro-Ready Fit: 6 x 16 x 48 in. batts designed for fast installation in standard stud bays.

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Mineral wool (Thermafiber UltraBatt)
R-Value R-24
Batt Dimensions 6 in x 16 in x 48 in
Package Quantity 24 bags
Primary Applications Exterior and interior walls; residential and light commercial
Fire Rating / Property Non-combustible; reference ASTM C 1338 per supplier listing
Acoustic Performance Designed for noise reduction (sound control)

Frequently Asked Questions (FAQ):

Q: What is the R-value of these batts?
A: R-24.


Q: What are the batt dimensions?
A: Each batt is 6 x 16 x 48 inches.


Q: What material are these made of?
A: Mineral wool (stone wool) designed for thermal, fire, and acoustic performance.


Q: Are these suitable for wall applications?
A: Yes—commonly used in exterior and interior walls in residential and light commercial projects.


Q: Do the batts resist mold and moisture?
A: Yes, mineral wool is moisture resistant and does not support mold growth.


Sculpted Warmth with Studio-Quiet Performance

This mineral wool insulation elevates the envelope of a home—quieting the world outside while preserving a crisp, tailored interior. I love the dense, architectural feel of the batts; they slip into stud bays like custom tailoring. Pair it with natural wood cladding and matte black fixtures to let the serene acoustics amplify your design moment. It’s the unseen layer that makes luxury living feel effortless and hushed.


Upgrade your walls with R-24 Thermafiber UltraBatt and get energy savings, fire resistance, and a quieter home—order today.

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