Div 07 · Thermal & Moisture Protection
MinWool Sound Attenuation Fire Batt
J
Johns Manville · MinWool SAFB
A rock mineral wool batt friction-fit into metal stud cavities and above suspended ceilings to raise the STC and support the fire rating of the partition.
✓ Verified 2026-08-28
Specs on this page were checked against Johns Manville commercial mineral wool guide on 2026-08-28.
Specifications
| Density | 2.5 pcf |
| Thickness | 1 in to 6 in in 1/2 in increments |
| R-value | 3.7 per inch |
| Batt sizes | 16 in x 48 in and 24 in x 48 in |
Certifications & Standards
ASTM C665
ASTM C1104
ASTM C1338
ASTM E84
ASTM E136
GREENGUARD Gold
Attributes — product claims, not third-party certifications
NoncombustibleFlame spread 0Smoke developed 0Rock mineral wool
Sustainability
No sustainability metrics on file for this product.