TeeKay Posted February 27 Report Share Posted February 27 I have a fire door with a gap between about 3 and 4mm round the edges, but the cold smoke brush seal doesn't touch the door. I'd say the gap is about 1mm. Is that acceptable? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Neil Ashdown MAFDI Posted March 2 Report Share Posted March 2 The cold smoke seal should be in contact with the opposing surface in order for it to be effective. There are various types of smoke seals available, including types that can seal against the face of the door instead of at the edge. Quote Link to comment Share on other sites More sharing options...
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