ROCKWOOL Comfortbatt R-38 Unfaced Mineral Wool Batt Insulation (9-1/2 in x 15-1/4 in x 47 in) – 19.91 sq ft
Regular price $66.97R-38 Unfaced Mineral Wool Batt Insulation
ROCKWOOL Comfortbatt® is a mineral (stone) wool thermal batt insulation designed for wood and steel stud applications to improve energy efficiency and comfort. Its flexible edge supports a snug fit while helping maintain R-value, with added fire resistance, moisture resistance, and sound absorbency.
Key Features:
- Flexible Edge Fit: Designed to friction-fit in stud bays for easier installation while helping prevent over-compression that can reduce R-value.
- Fire-Resistant Mineral Wool: Non-combustible insulation that resists flame spread and helps improve building safety.
- Moisture & Water Resistance: Helps resist water and moisture for more durable performance in common residential areas.
- Sound Absorbency: Mineral wool structure helps reduce noise transfer between rooms and floors.
- Health-Conscious Certification: GREENGUARD Gold Certified to support a healthier indoor environment.
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Brand | ROCKWOOL® |
| Product line / sub-brand | Comfortbatt® |
| Product type | Mineral wool (stone wool) batt insulation |
| R-Value | R-38 |
| Facing type | Unfaced |
| Thickness | 9-1/2 in |
| Width | 15-1/4 in |
| Length | 47 in |
| Coverage area | 19.91 sq-ft |
| Installation type | Ceiling |
| Applications | Exterior wood and steel stud applications |
| Stud construction | Wood stud construction |
| Density | > 2 lb/cu-ft |
| Fire performance | Non-combustible; fire resistant; does not promote flame spread |
| Moisture performance | Water and moisture resistant |
| Acoustic performance | Excellent sound absorbency |
| Indoor air quality certification | GREENGUARD Gold Certified |
| Proposition 65 warning | California Residents: Proposition 65 Warning (www.P65Warnings.ca.gov) |
Frequently Asked Questions (FAQ):
Q: Where can this batt insulation be installed?
A: It’s intended for exterior wood and steel stud applications and is also listed for ceiling installation in the provided product details.
Q: Is this insulation faced or unfaced?
A: This product is unfaced.
Q: What R-value and thickness is this batt?
A: It is R-38 insulation with a 9-1/2 in thickness.
Q: How much area does one unit cover?
A: It covers 19.91 sq ft.
Q: What material is it made from?
A: It is mineral wool (stone wool).
Quiet Luxury, Built into the Walls
Comfort starts beneath the surface—this mineral wool batt turns the bones of a home into a calmer, more temperature-stable retreat. The flexible edge is a small design gesture with major payoff, creating a tailored fit that helps preserve performance without fussy installation. Use it to elevate bedrooms, media rooms, or any space where hush and warmth feel like true indulgence. It’s the kind of invisible upgrade that makes a home feel effortlessly, unmistakably luxe.
Upgrade your comfort and peace of mind with ROCKWOOL Comfortbatt R-38 mineral wool batts for a snug, high-performing insulation fit.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
