ROCKWOOL Comfortbatt® R38 is Now Available at Rice Lumber

If you are planning to improve your home’s comfort and energy efficiency, Rice Lumber now stocks ROCKWOOL Comfortbatt® R38 in 10” x 16” and 10” x 24” sizes.

This high-performance stone wool insulation is a strong choice for attic floors, cathedral ceilings, and other areas where reliable thermal control matters. In Vermont’s colder climate, choosing the right insulation can make a noticeable difference in how comfortable your home feels through the seasons, while also helping reduce heating and cooling costs over time.

👉 Learn more directly from the manufacturer: ROCKWOOL Comfortbatt®

What Is Comfortbatt®?

Comfortbatt® is a stone wool batt insulation designed for use in wood and steel framing. It works well in a range of residential applications, including:

• Exterior wall cavities
• Attics and cathedral ceilings
• Basements and crawlspaces
• Exposed floors

Its dense, fibrous structure delivers strong thermal performance, while also helping with sound control, fire resistance, and long-term durability. For homeowners, that means a product designed to support a quieter, safer, and more comfortable home.

Why Stone Wool Is Worth Considering

If you are comparing insulation options for a renovation or new project, stone wool offers several practical advantages:

• High R-value per inch for strong thermal performance
• Noncombustible and fire-resistant to help contain flames
• Sound absorption for quieter interior spaces
• Moisture resistance, so it will not promote mold, mildew, or rot
• Durable yet lightweight for easier handling and installation

These benefits can be especially important in Vermont, where homes need materials that perform well through cold winters, changing temperatures, and everyday wear.

Learn more about the benefits of stone wool here: Why Stone Wool?

Key Features of Comfortbatt®

Comfortbatt® is designed to make installation more effective and help maintain long-term performance. Key features include:

• Flexible edge design for a snug fit between framing members
• Helps maintain full R-value without over-compression
• Can be cut easily with a serrated knife
• Made from inorganic material that does not support mold growth
• Provides long-term thermal performance for lasting comfort

If you are working with a contractor, these features can help support a more consistent installation. If you are planning your project yourself, they also make it easier to understand why proper material selection matters.

Common Applications in the Home

Framed Wall Cavities

Comfortbatt® fits neatly between wood or steel studs, helping reduce gaps and improve the overall thermal performance of exterior walls.

Basement Walls

When paired with ROCKWOOL Comfortboard®, Comfortbatt® can be part of an effective split insulation system for basement renovations.

Attics and Ceilings

The new R38 size is especially well suited for attic floors and cathedral ceilings, making it a smart option when you want a higher-R insulation solution for new construction or retrofit work.

Other Comfortbatt® Sizes We Stock

In addition to R38, Rice Lumber carries several other Comfortbatt® sizes to support a variety of project needs:

• R15 (4”): 16” and 24” on-center
• R23 (6”): 16” and 24” on-center
• R30 (8”): 24” on-center

Upgrade Your Home with Comfortbatt®

ROCKWOOL Comfortbatt® R38 offers a premium insulation solution for homeowners looking to improve comfort, energy efficiency, fire resistance, and long-term performance.

Whether you are tackling a renovation, planning a new build, or working with a contractor to improve your home, Rice Lumber is here to help you choose the right materials with confidence. Stop by to see our full selection and get expert guidance on the best insulation for your next project.