Guest Tony Posted October 5, 2023 Report Share Posted October 5, 2023 Hi, our block of flats were built in the 1980’s and have letterbox’s in the door. We have no information on these doors so I just wanted to know would we need the doors replaced as I heard unless the manufacturer says you can, fire doors cannot be drilled through. As we have no evidence how can we be sure these doors will perform in a fire? Quote Link to comment Share on other sites More sharing options...
Neil Ashdown MAFDI Posted October 9, 2023 Report Share Posted October 9, 2023 Some fire doors can have apertures for fire resistant and smoke restricting letter plates. My advice would be to engage a competent & experienced fire door inspector to verify whether or not the doors are suitable in terms of their fire and smoke performance, as flat entrance doors. Quote Link to comment Share on other sites More sharing options...
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