Fire escapes and related balconies, ladders, landings, and operating devices shall not be obstructed in any manner. No object shall be stored on or attached to a fire escape without the approval of the fire code official. Fire escapes shall not be located beyond a locked door or room that restricts immediate access to the fire escape from the corridor.
Exception: These restrictions shall not apply to a building in which every dwelling or commercial space within the building has immediate access to a fire escape without exiting the dwelling or space and entering the corridor.