Rockwool AFB (Acoustic Fire Batt) is a batt insulation designed for wall and floor systems where acoustical performance and fire resistance are the priorities. This noncombustible, lightweight solution shines in friction-fit applications—from party walls to plant/manufacturing walls—delivering solid sound dampening without complicating installation.

Key Features & Design

• Easily cut for precise fit in wall partitions and system assemblies.
• Excellent sound absorbency to improve room acoustics and reduce noise transfer.
• Non-combustible with a melting point of approximately 2150°F (1177°C).
• Low moisture sorption and chemically inert; non-corrosive.
• Repels water and does not rot, mildew, fungi, or bacteria growth.
• CFC - and HCFC - free product and process.
• Made from natural & recycled materials.
• Earns LEED points — talk to the ROXUL Technical Service Professional for guidance.
• Dimensionally stable for reliable friction-fit performance in various wall system applications.

Sizes, Coverage & R-Value

• 1" thickness — 170.7 Sq Ft Per Bag; 32 Batts Per Bag; R4
• 1.5" thickness — 96 Sq Ft Per Bag; 18 Batts Per Bag; R6
• 2" thickness — 85.3 Sq Ft Per Bag; 16 Batts Per Bag; R8
• 2.5" thickness — 64 Sq Ft Per Bag; 12 Batts Per Bag; R10
• 3" thickness — 85.3 Sq Ft Per Bag; 12 Batts Per Bag; R12
• 3.5" thickness — 64 Sq Ft Per Bag; 10 Batts Per Bag; R14
• 4" thickness — 64 Sq Ft Per Bag; 8 Batts Per Bag; R16
• 5" thickness — 42.67 Sq Ft Per Bag; 6 Batts Per Bag; R21
• 6" thickness — 42.67 Sq Ft Per Bag; 6 Batts Per Bag; R25