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    DuctingFire Protection

    Product Type:

      Mineral Fibre - Rock

    Market Sector:


    Knauf Insulation Rocksilk Pyroduct Slab (05P)

    Product Description:

    For the fire protection of steel ductwork up to 2 hours


    PyroDuct Slab is a rigid, rock mineral wool slab, faced with a Bright Class ‘O’ reinforced aluminium foil.


    PyroDuct Slab is fully tested and certified to provide up to 2 hours fire protection to HVAC steel ductwork. It can be used in horizontal ducts, vertical ducts, ducts passing through compartment walls and floors and kitchen extracts. PyroDuct Slabs are suitable for applications above clean rooms, within air plenums or for aesthetic purposes.


    PyroDuct Slab is classified as non-combustible to BS 476: Part 4: 1970 (1984), Class 1 Surface Spread of Flame to BS 476: Part 7: 1997 and Class ‘O’ to the Building Regulations.

    PyroDuct Slab is fully certified for duct types A and B (fire inside and outside with insulation, integrity and stability) to provide up to 2 hours fire protection for steel ductwork.

    • Combines lightness, strength and ease of use
    • The aluminium foil facing ensures a positive vapour seal
    • Corrosion free
    • No deterioration of performance over time
    • Resilient, strong and flexible



    M4 Product Table

    Encon Product Code Product Description Unit Type Quantity
    05P045 KN R'SILK PYRODUCT FF 1200x600x 45mm (4) PACK
    05P090 KN R'SILK PYRODUCT FF 1200x600x 90mm (2) PACK

    Associated Products: