Back Filling Fire Rated Door Frames

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4 thoughts on “Back Filling Fire Rated Door Frames

  1. Alastair withers Reply

    Hi just researching best way to back fill Fire rated pressed metal door in precast concrete
    Was looking at using grout and group pump
    Any heads up or good ideas

    • Surefab Admin Post authorReply

      Hello Alastair,
      Yes, using grout and a grout pump is a common option used to back fill fire rated door frames. The main thing to ensure is that the opening is fully sealed off before backfilling, and that all possible air gaps are filled.
      Hope this helps!
      Surefab Admin

  2. Daniel Reply

    Hi, Is fire rated expanding foam an acceptable method of backfilling an existing fire door jamb in timber frame construction?

    • Surefab Admin Post authorReply

      Hello Daniel,
      It depends on the brand of door you are using. If you are using a fire core door, fire foam has not been certified for use for backfilling the jamb. The approved backfill options are fire grade plasterboard, mortar, cement grout or LAF Vermitex TH. I hope this helps.

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