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Rockwool RW3 Acoustic Insulation Slabs 1200mm x 600mm deliver dense, rigid mineral wool insulation with standout fire and acoustic performance. Each slab fits tightly between standard studs or joists, offering friction-fit installation without mechanical fixings. Designed for use in floors, walls, and ceilings, the RW3 range provides reliable protection across multiple building types, from commercial units to residential developments and education spaces.

These slabs help you meet fire safety and acoustic regulations in one go. They’re made from non-combustible stone wool and resist moisture while maintaining shape and performance. To view proper fitting instructions and safety details, check the official Rockwool installation guide. 

Key Features

• Made in the UK
• Provides up to 60 minutes of fire resistance
• High-density slab for airborne sound control
• Ideal for stud walls, floors, and ceilings
• Friction-fit design for fast installation
• Non-combustible and moisture-resistant
• Available in 25mm, 30mm, 50mm, 60mm, 75mm, and 100mm thicknesses
• Datasheet