I have tried to get advice from the Fire Brigade, so far without any response, and have not found any relevant information on the Scout Association website, even though this must be a very common situation.
We occupy a stone/block built hall with the usual sort of kitchen, toilet, meeting room and store facilities. The hall is separated from the other rooms by a corridor leading directly to the main entrance/exit. All rooms open onto the corridor. The hall also has a fire exit at the opposite end.
Fire alarm may be activated by MACs at both hall exits and at the main exit, and by a smoke detector in the corridor. The single alarm bell can be heard clearly throughout.
On occasions, our own, or visiting groups of youngsters sleep overnight in the hall. We don't provide sleeping accommodation "per se", but there may be up to ~40 kids sleeping on bed-rolls on the floor. The adult leaders will sleep in the meeting rooms.
I consider our overall risk of fire to be very low, though would tend towards getting a heat detector installed in the kitchen. But does the fact that people sleep here mean that we really need a fire certificate, smoke detectors in every room and 1 hour protection to the corridor?
Any suggestions/advice welcome