Each flat should be self contained for fire and should stop it for 30 minutes or so. The fire brigade don't want people trying to get out whilst they're trying to get up the staircase to put the fire out.
Obviously workplaces aren't isolated in the same way.
You still have fire doors etc. Even in a hospital with patients the plan is to move sideways through each set of fire doors away from a fire before having to move down
However the rate at which that suspected PIR cladding catches and spreads I can't help but think being told to 'stay in your room' was a death sentence.
Each flat should be self contained for fire and should stop it for 30 minutes or so. The fire brigade don't want people trying to get out whilst they're trying to get up the staircase to put the fire out.
Obviously workplaces aren't isolated in the same way.