Collection: Flexible-Slab

  • NOTE FOR STONE/GLASS WOOL ORDERS 2019: As there's currently a high demand for wool materials nationwide, most wool orders may take an estimated 4 weeks to deliver. This includes the following brands, Rockwool, Knauf, Isover, Superglass, Ursa.
  • Knauf Rocksilk Flexible Slab (All Sizes) 1200mm x 600mm
    Knauf Earthwool Flexible Slab 600mm x 1200mm - All Sizes All Insulation
    Regular price
    from £495.67 £594.80
    Sale price
    from £495.67 £594.80
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    The flexible-slab from is a multi-purpose slab which offers a variety of applications imparting excellent acoustic and thermal insulation along with fire performance.

    The Earthwool flexi-slab is a flexible, multi-purpose and non-combustible rock mineral wool slab which is particularly designed for friction fitting installations. The Earthwool flexi-slab is used majorly for acoustic and thermal insulations of a huge variety of building constructions which include metal stud and timber partitions as well as timber frame walls and suspended timber floors.

    The slabs in this range are manufactured according to BS EN ISO
    50001 Energy Management Systems, BS EN 13162, OHSAS 18001 Occupational Health and Safety
    Management Systems, ISO 14001 Environmental Management Systems and ISO 9001
    Quality Management Systems as per the certification by the Bureau Veritas.

    The flexi-slabs are odorless, rot-proof, do not sustain vermin and are non-hygroscopic. These do not encourage the growth of fungi, bacteria and mould.

    The Flexi-slab offers a negligible resistance to the passage of water vapor with a resistivity of 5.00MNs/gm.


    The flexi-slab from poses no threat on the environment and has a zero global warming potential and zero ozone layer depletion.
    The flexi-slabs are easy to manage and install. They are lightweight and can be easily cut to size where necessary. The flexi-slab is supplied in polythene packs that are designed mainly for short-term protection on site. The products are either stored under-cover or are stored indoors and off the ground. However, it comes with one indication of not to be left exposed permanently to elements.


    • Flexible edge on all 4 sides for easy installation
    • A+ generic BRE Green Guide rating
    • Made with ECOSE Technology
    • Euroclass A1 reaction to fire rating
    • Suitable for internal partitions and floors
    • Perfect for timber and metal stud walls
    • Efficient for in between timber roof rafters
    • Suitable for in between timber floor joists
    • A1 non-combustible
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