Specially designed using patented technology, these Flexi semi-rigid insulation slabs from ROCKWOOL are unique, with a flexible edge along one side, and quick and easy to friction fit between timber and metal frame systems. The flexible edge ensures a perfect fit between the supporting framework for optimal effectiveness.
Providing efficient acoustic performance, fire resistance and thermal insulation, these Flexi slabs are suitable for use in all framed areas of your building. Without the necessity for cutting or waste, they ensure essential tight fitting for acoustic and thermal integrity between frames in walls, roofs, floors and partitions. Manufactured from renewable volcanic rock, they are exceptionally fire-resistant and substantially reduce the carbon footprint of your building.
Features & Benefits: ROCKWOOL Flexi Slab Acoustic Insulation 1200mm x 600mm x 60mm – 8.64m2 Pack
- Light and easy to cut to shape with a sharp knife
- No maintenance needs after installation
- 0.038W/mK thermal conductivity
- 1.2m length x 600mm x 60mm slabs
- Excellent acoustic performance, fire resistance and thermal insulation
- 103.68m² coverage
- Manufactured from renewable volcanic rock
- Provides a perfect friction fit between timber and metal frame systems
- Flexible edge along one side
- Unfaced
This multi-use, dual-purpose thermal and acoustic insulation functions in two distinct ways to minimise noise either by absorbing sound at the surface or by impeding the transmission of sound through an element of the structure. The structure of the fibres makes these RW slabs ideal for use as a sound absorber with naturally high coefficients over a vast frequency range.
These ROCKWOOL slabs obtain an A1 classification in accordance with BS EN 13501-1 and comply with the specifications of non-combustible products/materials as defined in all UK and Ireland Building Regulations.
Standards & Certification
- Reaction to fire: A1 classification to BS EN 13501-1
Please note:
- ROCKWOOL RW slab products are either coated with a glass fleece or aluminium foil facing on one or both surfaces, or are unfaced.















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