ROCKWOOL AFB Acoustical Fire Batt Insulation, Unfaced Mineral Wool, 3 in x 15 in x 48 in, 60 sq ft (12 Pack)
Mineral Wool Acoustical Fire Batt Insulation
ROCKWOOL AFB® is an unfaced mineral wool (stone wool) batt designed for interior walls, floors, and ceilings to help improve fire resistance and sound absorption. Its durable, dense structure is suited for steel- or wood-stud assemblies and resists corrosion.
Key Features:
- Fire & Sound Performance: Designed to combine fire resistance with sound absorption for interior assemblies
- Unfaced Batts: Ideal for use behind drywall and in cavity applications where no facing is desired
- Durable Mineral Wool: Stone wool construction supports long-lasting performance and corrosion resistance
- Sized for Stud Cavities: 15 in x 48 in batts help fit common framing layouts
- Coverage per Bag: 60 sq ft total coverage with 12 batts per bag
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Product line / sub-brand | AFB® |
| Material | Mineral wool (stone wool / natural stone) |
| Facing type | Unfaced |
| Thickness | 3 in |
| Width | 15 in |
| Length | 48 in |
| Coverage area per bag | 60 sq-ft |
| Pieces per bag | 12 |
| Installation locations | Ceiling, Floor, Wall |
| Resists | Corrosion, Fire |
| Density | >2.5 lb/cu-ft |
Frequently Asked Questions (FAQ):
Q: Where can this insulation be installed?
A: It’s intended for interior wall, floor, and ceiling applications in steel-stud or wood-stud assemblies.
Q: Is it faced or unfaced?
A: This product is unfaced.
Q: How much does one bag cover?
A: One bag covers 60 sq ft and includes 12 batts.
Q: What is it made of?
A: It is made of mineral wool (stone wool).
Q: What are the batt dimensions?
A: Each batt is 3 in thick x 15 in wide x 48 in long.
The Quiet Luxury Layer Behind the Walls
There’s a certain kind of glamour that isn’t seen—it’s felt in the hush of a room and the confidence of materials that perform. These unfaced stone wool batts slip into walls, floors, and ceilings to elevate comfort with a more composed acoustic atmosphere and added fire resistance. I love using them to create a serene envelope around media rooms, bedrooms, or home offices—spaces where softness matters, even when the palette stays crisp. It’s the kind of foundational upgrade that makes a home feel undeniably more luxurious.
Upgrade your wall, floor, or ceiling assemblies with ROCKWOOL AFB batts for durable mineral-wool comfort with added sound and fire performance.
Original: $77.60
-70%$77.60
$23.28Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Mineral Wool Acoustical Fire Batt Insulation
ROCKWOOL AFB® is an unfaced mineral wool (stone wool) batt designed for interior walls, floors, and ceilings to help improve fire resistance and sound absorption. Its durable, dense structure is suited for steel- or wood-stud assemblies and resists corrosion.
Key Features:
- Fire & Sound Performance: Designed to combine fire resistance with sound absorption for interior assemblies
- Unfaced Batts: Ideal for use behind drywall and in cavity applications where no facing is desired
- Durable Mineral Wool: Stone wool construction supports long-lasting performance and corrosion resistance
- Sized for Stud Cavities: 15 in x 48 in batts help fit common framing layouts
- Coverage per Bag: 60 sq ft total coverage with 12 batts per bag
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Product line / sub-brand | AFB® |
| Material | Mineral wool (stone wool / natural stone) |
| Facing type | Unfaced |
| Thickness | 3 in |
| Width | 15 in |
| Length | 48 in |
| Coverage area per bag | 60 sq-ft |
| Pieces per bag | 12 |
| Installation locations | Ceiling, Floor, Wall |
| Resists | Corrosion, Fire |
| Density | >2.5 lb/cu-ft |
Frequently Asked Questions (FAQ):
Q: Where can this insulation be installed?
A: It’s intended for interior wall, floor, and ceiling applications in steel-stud or wood-stud assemblies.
Q: Is it faced or unfaced?
A: This product is unfaced.
Q: How much does one bag cover?
A: One bag covers 60 sq ft and includes 12 batts.
Q: What is it made of?
A: It is made of mineral wool (stone wool).
Q: What are the batt dimensions?
A: Each batt is 3 in thick x 15 in wide x 48 in long.
The Quiet Luxury Layer Behind the Walls
There’s a certain kind of glamour that isn’t seen—it’s felt in the hush of a room and the confidence of materials that perform. These unfaced stone wool batts slip into walls, floors, and ceilings to elevate comfort with a more composed acoustic atmosphere and added fire resistance. I love using them to create a serene envelope around media rooms, bedrooms, or home offices—spaces where softness matters, even when the palette stays crisp. It’s the kind of foundational upgrade that makes a home feel undeniably more luxurious.
Upgrade your wall, floor, or ceiling assemblies with ROCKWOOL AFB batts for durable mineral-wool comfort with added sound and fire performance.






















