Dragos Rusu Posted June 10 Report Share Posted June 10 Hi there, I have a question regarding the gap at the bottom of the door, I have a riser door with a full frame all around, but at the bottom, the so-called threshold is part of the frame, my question is if this gap is treated as a gap around the (2mm - 4mm) or as a bottom gap up to 10mm. Quote Link to comment Share on other sites More sharing options...
Neil Ashdown MAFDI Posted June 10 Report Share Posted June 10 Noting that the bottom part of the door frame has an intumescent edge seal, I would work on a 2mm to 4mm gap. Have you checked with the door leaf or door-set manufacturer? It would be interesting to see what they require. Quote Link to comment Share on other sites More sharing options...
Dragos Rusu Posted June 14 Author Report Share Posted June 14 Thank you Neil for getting back to me so quickly. The manufacturer is not on the market anymore, unfortunately, but that`s what I was thinking too, due to the bottom seal. Quote Link to comment Share on other sites More sharing options...
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