Back Filling Fire Rated Door Frames

Download this fact sheet as a PDF here

Is there any one else you know who would benefit from this? Feel free to share it with them…

6 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

    • Neville De Lisle Reply

      How do you backfill an existing -/120/30 rated steel door frame & door in a plaster wall.

      • Surefab Admin Post authorReply

        Hello Neville,
        Thanks for your question.
        We haven’t heard of this being done before, because any form of liquid backfill will pour through the holes in the studs and fill the wall cavity.
        You may have no option but to remove the frame and backfill, and then install it back into the opening.
        Hope this helps.

  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.

Leave a Reply

Your email address will not be published. Required fields are marked *