ROCKWOOL · Insulation
AFB®
ROCKWOOL AFB® is a stone wool acoustical fire batt insulation designed for interior steel stud partitions. AFB is noncombustible and resists fire while absorbing sound to protect and soundproof your space.
AFB contributes to enhanced acoustical control and fire protection through numerous third-party fire- and acoustic-rated wall and floor-ceiling assemblies. Made from stone, it provides the optimal balance of rigidity and flexibility, helping to make installations easy, fast and efficient.
- Applications
- Interior partition walls, Interior framed floors, Interior ceilings, Acoustic insulation, Fire protection
- Properties
- Stone wool, Noncombustible, Acoustic, USDA BioPreferred, GREENGUARD Gold
- Material
- Stone wool
- Nominal density
- Greater than 2.5 lbs/ft³ (40 kg/m³)
- Smoke developed index
- 0 (ASTM E84)
- Combustibility
- Non-combustible (ASTM E136 at 750 °C · CAN/ULC S114)
- Standard compliance
- CAN/ULC S702 Type 1 · ASTM C665 Type 1 · ASTM C553 Type 7
- Corrosion of steel
- Passed (ASTM C665)
- Batt size
- 16 in or 24 in wide × 48 in long
- Thicknesses
- 1 in · 1.5 in · 2 in · 2.5 in
- Pack coverage
- 64–192 sq ft per pack
Uses+
Interior partition walls in steel stud commercial construction
Interior framed floor and ceiling assemblies
Assemblies needing both acoustic control and fire protection
Third-party fire- and acoustic-rated wall and floor-ceiling assemblies
Why Stone Wool+
Stone wool provides excellent noise reduction and sound absorption to help create quieter, more productive environments.
Noncombustible and fire resistant, stone wool works to contain a fire and prevent its spread.
Water resistant, stone wool does not rot or promote the growth of mildew, fungi or mold.
Stone wool batts are lightweight and easy to install.
AFB and AFB evo have been USDA certified Biobased, obtaining the USDA BioPreferred Certification.
Installation Notes+
Easily cut with a serrated knife.
Snug fit between steel studs at varying widths.
Inorganic — does not promote mold growth.
Water and moisture repellent.
Sizes & Packaging+
AFB 1 in · 24 in × 48 in · 24 pieces/pack · 192 sq ft/pack (item 168671)
AFB 1.5 in · 24 in × 48 in · 16 pieces/pack · 128 sq ft/pack (item 168672)
AFB 1.5 in · 16 in × 48 in · 18 pieces/pack · 96 sq ft/pack (item 291318)
AFB evo 1.5 in · 16 in × 48 in · 18 pieces/pack · 96 sq ft/pack (item 291333)
AFB evo 1.5 in · 24 in × 48 in · 16 pieces/pack · 128 sq ft/pack (item 248812)
AFB 2 in · 24 in × 48 in · 12 pieces/pack · 96 sq ft/pack (item 168648)
AFB 2 in · 16 in × 48 in · 16 pieces/pack · 85.3 sq ft/pack (item 291322)
AFB evo 2 in · 16 in × 48 in · 16 pieces/pack · 85.3 sq ft/pack (item 291334)
AFB evo 2 in · 24 in × 48 in · 12 pieces/pack · 96 sq ft/pack (item 248817)
AFB 2.5 in · 16 in × 48 in · 12 pieces/pack · 64 sq ft/pack (item 291321)
Certifications+
Listed on the Declare product database.
UL GREENGUARD Gold Certified.
UL Classified — CA/USA.
USDA BioPreferred Program — 25% bio-based content.
