ROCKWOOL Comfortbatt R-23 Unfaced Mineral Wool Batt Insulation, 5-1/2 in x 23 in x 47 in (37.53 sq ft)
Regular price $71.56R-23 Unfaced Mineral Wool Batt Insulation
ROCKWOOL Comfortbatt® is an unfaced stone wool batt insulation designed for wood or steel stud applications to improve thermal comfort and sound control. Its flexible edge helps it friction-fit into framing cavities while maintaining R-value, and the mineral wool construction is non-combustible and moisture resistant.
Key Features:
- Flexible Edge Fit: Designed to friction-fit into stud cavities for easier installation and reduced gaps.
- Fire-Resistant Mineral Wool: Non-combustible insulation with 0 flame spread and 0 smoke developed indices.
- Moisture Resilience: Water- and moisture-resistant and does not rot or promote fungi/mildew growth.
- Sound Control: Excellent sound absorption to help quiet walls, floors, and ceilings.
- Health-Conscious Choice: GREENGUARD Gold Certified for a healthier indoor environment.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | ROCKWOOL® |
| Sub-brand | Comfortbatt |
| Category | Batt Insulation |
| Material | Mineral wool (stone wool) |
| R-Value | R-23 |
| Facing Type | Unfaced |
| Thickness | 5-1/2 in |
| Width | 23 in |
| Length | 47 in |
| Coverage Area | 37.53 sq-ft |
| Density | >2 lb/cu-ft (>2 pcf) |
| For Use With | Wood stud framing (also described for exterior wood and steel stud applications) |
| Installation Type | Ceiling |
| Flame Spread Index | 0 |
| Smoke Developed Index | 0 |
| Standards/Certifications | ASTM C167; ASTM C518; CAN/ULC S702; CAN/ULC S102; CAN/ULC S114; GREENGUARD Gold Certified |
| Features | Easily cut; Non-combustible; Excellent sound absorption; Does not rot or promote the growth of fungi or mildew; Low moisture absorption; Water and moisture resistant (does not absorb moisture to maintain insulating value) |
Frequently Asked Questions (FAQ):
Q: What size framing is this batt designed for?
A: This batt is 5-1/2 in thick and 23 in wide, intended for standard 2x6 framing cavities (23 in width matches typical stud bay spacing).
Q: Is this insulation faced or does it include a vapor retarder?
A: It is unfaced, so it does not include a facing or built-in vapor retarder.
Q: Where can it be installed?
A: It’s listed for ceiling installation and described for exterior wood and steel stud applications such as walls, basements, and crawlspaces.
Q: Can it be cut to fit around wiring and boxes?
A: Yes—it's noted as easily cut for fitting around obstructions.
Q: Does it help with fire safety and smoke?
A: It is non-combustible and fire resistant, with a flame spread index of 0 and smoke developed index of 0.
Quiet, cocooned comfort—built into the bones of the room
True luxury starts with what you don’t see: a space that feels still, warm, and effortlessly composed. This mineral wool batt creates a calmer interior by wrapping stud cavities in thermal performance and sound-softening density—an invisible upgrade that makes every finish look more intentional. Use it in walls and ceilings to elevate bedrooms, media rooms, or any space where serenity is the ultimate design flex. Consider it the foundation layer that turns a house into a sanctuary.
Upgrade your walls or ceilings with ROCKWOOL Comfortbatt® for R-23 thermal performance, sound control, and non-combustible peace of mind.
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