I came in at a rather late stage in the project where a old office building is being converted into a hotel. The wiring for the lighting was mistakenly routed above the compartment ceilings in the floor void above. The ceilings then had a small number of recessed downlights which were fire rated at 90min. The arrangement has been rejected by Building Control as there is no test evidence for the composite. So be careful when going for similar arrangements! I imagine recent serious fires are beginning to have an impact on the way regulations are interpreted.
Is that a ground floor plus 1 or a ground floor plus 2.
I am asking this as my thinking is the majority of houses with ground floor plus 1 are one fire compartment. In which case no need, but a good idea, for fire rated down lighters. My thinking is any fire will vent up the stairs and not be impeded my fire rated doors with closers.
Once you have a ground floor plus 2 the 2nd floor will usually be a separate fire compartment with fire rated doors and a window that can be used as a means of rescue by the FS. In which case fire rate down lighters fitted in the 1st floor ceiling need to be fire rated.
Is that a ground floor plus 1 or a ground floor plus 2.
I am asking this as my thinking is the majority of houses with ground floor plus 1 are one fire compartment. In which case no need, but a good idea, for fire rated down lighters. My thinking is any fire will vent up the stairs and not be impeded my fire rated doors with closers.
Once you have a ground floor plus 2 the 2nd floor will usually be a separate fire compartment with fire rated doors and a window that can be used as a means of rescue by the FS. In which case fire rate down lighters fitted in the 1st floor ceiling need to be fire rated.
