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    Cavity ClosersDamp Proof Course

    Product Type:

      Mineral Fibre - Rock

    Market Sector:


    Rockwool RockClose & RockReveal (20B,35I)

    Product Description:

    Rockwool fire rated cavity closers

    Rockwool cavity closer systems have been developed to minimise thermal bridging at door and window reveals in cavity wall constructions. Rockwool can now offer a solution for both first-fix built-in (Rockclose) and second fix (RockReveal) applications. Both systems are fire rated and exceed the minimum requirements of Thermal Robust Details.


    Rockclose provides the user with a fire rated cavity closer for masonry walls with a returning inside leaf. RockReveal is a fire rated cavity closer, which can be used in timber, metal and masonry cavity walls without the need to return the block work.



    • • Built in as construction proceeds (First Fix)
    • • One-hour fire integrity
    • • One width covers most applications
    • • Easy to handle
    • • Self supporting



    • No need to return block
    • One-hour fire integrity
    • Easy to install
    • Second fix application
    • No additional dpc required



    M4 Product Table

    Encon Product Code Product Description Unit Type Quantity
    35I100050P RW-ROCKCLOSE DPC 1200x100/180x 50mm (10) PACK
    35I100030P RW-ROCKCLOSE DPC 1200x100/180x 30mm (10) PACK
    35I100020P RW-ROCKCLOSE DPC 1200x100/180x 20mm (10) PACK

    Associated Products: