Div 07 · Thermal & Moisture Protection
Thermafiber SAFB
O
Owens Corning · Thermafiber SAFB
Mineral wool sound attenuation fire blankets sized for stud cavities in fire-rated and acoustically-rated wall and floor-ceiling assemblies.
✓ Verified 2026-08-28
Specs on this page were checked against Owens Corning Thermafiber SAFB data sheet on 2026-08-28.
Specifications
| Density | 2.5 lb/ft3 (SAFB 2.5), 4.0 lb/ft3 (SAFB 4.0) |
| Thickness | 1-1/2 in to 7 in (SAFB 2.5); 1 in (SAFB 4.0) |
| UL classification code | BZJZ |
Certifications & Standards
ASTM C665
ASTM C795
ASTM C1104
ASTM C1338
ASTM C423
ASTM E84
ASTM E90
ASTM E136
ASTM E413
Attributes — product claims, not third-party certifications
NoncombustibleMineral wool
Sustainability
Recycled Content
Minimum 70%