The ROCKWOOL Flexi Slab Acoustic Insulation 1200mm x 400mm x 100mm Pack is a dual, multi-use and purpose thermal and acoustic insulation product that features a unique flexible edge along one side.
The flexible edge ensures you will have the perfect fit between the product and its supporting framework, giving you its optimum effectiveness. Without cutting and wasting product, the Flexi slab ensures an essential tight-fitting for thermal and acoustic integrity between frames in walls, partitions, roofs and floors.
Features & Benefits: ROCKWOOL Flexi Slab Acoustic Insulation 1200mm x 400mm x 100mm – 2.88m2 Pack
- One flexible side
- Renewable materials
- Fire resistant
- Reduces carbon footprint
- Uses patented technology
- Thermal insulation
- Acoustic performance
- Pack quantity: 6x slabs
- Pallet quantity: 30 packs
Manufactured from renewable volcanic rock, this insulation is not only highly fire-resistant but will also aid in reducing the carbon footprint of your building. The acoustic insulation has been developed explicitly using patented technology that allows fast and easy friction between timber and metal frame systems.
Acoustic performance
Rockwool stone wool products work in two distinct ways to reduce noise, either by impeding the transmission of sound through an element of the structure or by absorption of sound at the surface. The structure of the fibres in Rockwool slabs make them ideal for use as a sound absorber, with characteristically high coefficients over a wide frequency range.
Fire resistance
- All Rockwool slab products, either un-faced or with an aluminium foil or glass fleece on one or both surfaces, achieve an A1 classification in accordance with BS EN 13501-1 and therefore comply with the requirements of non-combustible materials/products, as defined in all UK and Ireland Building Regulations.
Handling, storage & maintenance
- Rockwool slabs are light and easy to cut to any shape with a sharp knife.
- Once installed the Rockwool slabs need no maintenance.
Standards & Certification
- Reaction to fire: A1 classification to BS EN 13501-1

















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