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Rockwool Comfortboard 80 Stone Wool Insulation Board 48-Sq. Ft.
- Mfg.#
- RXCB11224
- Sku#
- 4290847
- Fire resistant stone wool can withstand temperatures of approximately 2,150°F
- Reduces thermal bridging through wood framing, leading to a higher-performing building envelope.
- Stone wool provides excellent noise reduction and sound absorption to help you create quieter, more productive environments.
- Vapor permeable enabling wall systems to have superior drying potential, minimizing the risk of condensation and water accumulation.
- High recycled content: made from natural stone recycled content, HFC free
* Estimated stock levels as of Mon, Mar 23, 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
Enhance your building envelope with ROCKWOOL Comfortboard®, a rigid stone wool insulation board that provides exceptional fire protection, energy efficiency, and versatility.
Available in two product options to support specific structural requirements for your next project, Comfortboard 80 and Comfortboard 110 products are used with screws through strapping and insulation cladding support systems.
Comfortboard enables the creation of safer, more comfortable buildings that resist moisture and reduce energy costs. It's engineered for use as exterior continuous insulation in both above- and below-grade exterior walls, under-slab, exterior-insulated stucco assemblies, and in pitched roofs.
Specifications
General
| Approx Product Weight (lb) | 9.8 lbs |
|---|---|
| Facing | Unfaced |
| Rating | R6.3 |
| Type | Mineral Wool Insulation |
Dimensions
| Length | 48 in |
|---|---|
| Square Feet | 48 |
| Thickness | 1.5 in |
| Width | 24 in |
Manufacturing Details
The following information is subject to change without notice
| Shop USA | Yes |
|---|
