Rougeone Posted September 16, 2020 Report Share Posted September 16, 2020 I have a 686 door lining but there is a gap of 50mm from lining to internal brick wall, is this to big for foam ? Thank you in advance Quote Link to comment Share on other sites More sharing options...
Neil ashdown Posted September 17, 2020 Report Share Posted September 17, 2020 The 50mm gap is too large for a timber-based fire door assembly. Consult 'BS 8214:2016 Timber-based fire door assemblies - Code of practice' for details about maximum gap sizes and suitable fire stopping materials. Quote Link to comment Share on other sites More sharing options...
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