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    Product Range:


    Product Type:

      Insulation - Fibre

    Knauf Insulation Earthwool Rock Acoustic Floor Slab & Floor Slab Plus (05N)

    Product Description:

    For use as a resilient layer in the acoustic insulation of separating floors


    Acoustic Floor Slab and Acoustic Floor Slab Plus are dense, compression resistant, non-combustible, rock mineral wool slabs that have been manufactured specifically for use as a resilient layer beneath chipboard and floor screeds.


    Acoustic Floor Slab is for use as a resilient layer in the acoustic insulation of separating floors.

    Acoustic Floor Slab meets the requirement in Approved Document E (England and Wales) for a resilient layer under a floating platform to be mineral wool, 25mm thick with a nominal density between 60 and 100 kg/m3.

    Acoustic Floor Slab also provides a weighted reduction in impact sound pressure level ( Lw) of at least 17 dB when measured in accordance with Appendix 5 in Section 5 of the Scottish Technical Handbook.

    Acoustic Floor Slab Plus is an extra high density slab, with a nominal density of 140 kg/m3, for the acoustic insulation of separating floors to meet the requirements of a floating floor treatment in the Robust Details (England and Wales E-FC-1, E-FC-2 and E-FS-1).



    Ecose Technology ensures an evironmentally friendly formaldehyde-free binder made from rapidly renewable bio-based materials.

    • High compressive resistance
    • Excellent acoustic and thermal properties
    • Easy to install



    M4 Product Table

    Nevill Long Product Code Product Description Unit Type Quantity
    05NAF1025 KN ROCK ACOUST.FLOOR SLB 1000x600x25(12)
    05NAP1025 KN ROCK ACOUST.FLOOR SLB+1000x600x25( 8)
    05NAP1050 KN ROCK ACOUST.FLOOR SLB+1000x600x50( 4) PACK