For older properties there are often no fire strategy drawings available that detail the protected zones, locations of fire doors and the necessary fire resistance etc.
What is the general approach in this case for fire door inspectors? For example if the inspector comes across a door do they just make a determination on if the door is a nominal fire door (in absence of any signs of certification labels) based on the door make-up (leaf width, hinges, presence of intumescent strips, door closers etc)? I have also come across doors that appear to be fire doors where if you then look above the (non fire resistant) suspended ceiling there is no compartmentation to the wall above the door! So in this instance it wouldn't make much sense to recommend replacement of the fire door without also recommending upgrade of the compartmentation above the ceiling. But it does raise the question on if the door actually needs to be a fire door.
If the inspector determines it is a fire door and it needs replaced, how does the client instructing the fire door inspector know what specification of fire door to replace it with in absence of fire strategy information? Would the fire door inspector be expected to advise on this or would it be reasonable to suggest that the client looks to have restrospective fire strategy drawings produced?