Comfortbatt R38 10x24 22.5sf

ROCKWOOL Comfortbatt R38 Insulation (10" x 24") – 22.5 sq. ft. per Bag

ROCKWOOL Comfortbatt R38 is a high-performance stone wool insulation designed for superior thermal efficiency, fire resistance, and sound control. Engineered for use in wood and steel framing, these semi-rigid batts are precision-cut to fit standard 24" on-center spacing, ensuring a snug, friction fit that stays in place without sagging over time.

With an R-value of 38, this insulation is ideal for attics, ceilings, and cathedral assemblies where maximum thermal performance is required. Made from natural and recycled stone materials, Comfortbatt is water-repellent, vapor permeable, and resistant to mold, mildew, and rot—delivering long-term durability in a wide range of applications.

In addition to thermal performance, ROCKWOOL Comfortbatt provides excellent acoustic insulation, helping reduce noise transmission between rooms and from the outside environment.

Key Features:

• R38 thermal performance for high-efficiency insulation
• Fits 24" on-center framing (10" x 24" batts)
• Covers 22.5 sq. ft. per bag
• Fire-resistant (non-combustible stone wool)
• Water-repellent and vapor permeable
• Mold, mildew, and rot resistant
• Excellent sound absorption and noise reduction
• Easy to cut and install with a friction fit