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80mm Knauf Rocksilk Rainscreen Slab (1200mm x 600mm) (43.2m2 per pallet)

£670.25 (incl. VAT: £804.30)

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    80mm Rocksilk® RainScreen Slab is a BBA certified Rock Mineral Wool slab, specifically designed as sheathing insulation for rainscreen façade systems above and below 18m in height. It ensures non-combustibility with the highest Euroclass A1 reaction to fire classification and is manufactured using Knauf Insulation’s innovative bio-based binder, ECOSE® Technology.

    Features and Benefits:

    • BBA Certified: Holds BBA certification (certificate 19/5609), providing confidence for use in various build-ups.
    • Accurate U-Value Calculation: Comes with a BBA accredited 3D U-value calculation service, ensuring the most precise calculations.
    • Water-Repellent Additive: Manufactured with a water-repellent additive, ensuring slabs maintain their integrity when exposed on-site.

    thermal conductivity

    0.034 W/mk

    Fire Rating

    Euroclass A


    Rock Mineral Wool

    compressive strength




    R Value (M2K/W)


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