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    Cavity ClosersFire Protection

    Product Type:

      Mineral Fibre - Rock

    Market Sector:


    Rockwool SP Firestop Systems (35G)

    Product Description:

    ROCKWOOL® SP Firestop Cavity Slab systems form cavity fire stops within commercial and industrial buildings. The solution may be installed horizontally or vertically and is suitable for varying cavity widths in masonry and curtain wall constructions. The product has been designed as a one-piece system and affords easy cutting and using the SP Firestop Fixing Brackets . It provides a unique lateral compression to facilitate tightness of fit. The product consists of a semi-rigid lab with a smoke resistant aluminium foil facing on both sides. It is available in two versions:

    • SP 60 Slab for one hour fire resistance
    • SP 120 Slab for two hours fire resistance


    • Easy to cut and install
    • Ensures site tolerances are accommodated
    • Resists the passage of smoke
    • Suitable for cavity widths up to 400mm
    • Easy site storage and handling
    • Quality assured to BS EN ISO 9001

    ROCKWOOL® SP Firestop Cavity Slab is an effective fire stopping solution for up to two hours.


    M4 Product Table

    Encon Product Code Product Description Unit Type Quantity