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Rockwool R30 Comfortbatt Exterior Insulation 29.86-Square Feet
- Mfg.#
- RXCB301525
- Sku#
- 4290706
- Semi-rigid stone wool batt with flexible edge for an airtight fit
- Non-combustible and moisture-resistant, inhibiting mold and mildew
- Excellent acoustic absorption to reduce noise transmission
- Easily cut to length with standard insulation knives
- Made from natural and recycled materials; free of CFCs and HCFCs
* Estimated stock levels as of Tue, Apr 28, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
Rockwool Comfortbatt delivers high-performance stone wool insulation for wood studs, joists and floor frames in both new residential construction and renovation projects. Engineered for an R-30 thermal rating, each semi-rigid batt provides exceptional energy efficiency, helping to maintain consistent indoor temperatures and reduce heating and cooling costs year-round.
Featuring a unique compression edge, Comfortbatt is easy to install in 15-inch stud bays. The flexible edge springs back to fill any gaps, ensuring a complete fit for optimal thermal performance and sound absorption. Non-combustible and moisture resistant, this stone wool product also resists mold, mildew and degradation over time—making it a durable, long-lasting solution that can contribute toward LEED points in green building designs.
Specifications
General
| Insulation Rating | R30 |
|---|---|
| Square Foot Coverage | 29.86 sq ft |
| Type | Stone Wool Insulation |
| Width (In) | 16 in |
Dimensions
| Actual Thickness | 7 1/4 in |
|---|---|
| Length (In) | 47 in |
Label Information
| Certification, Codes, Standards | Declare, ETL Intertek Listed - CA/USA, UL Classified - CA/USA |
|---|
Manufacturing Details
The following information is subject to change without notice
| Shop USA | Yes |
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Related Documents
Brochure (PDF)
