When the Building Changes but the Fire Strategy Doesn’t

I've been to buildings where the biggest problem isn't the fire door. It's the fact that the building has changed, but the information about the building hasn't changed with it. A building can start life as one thing and, over the years, become something completely different. Walls get built. Walls get removed. Rooms get divided. Offices are created. Floors are added. Doors are moved or added. Ceilings are changed. Raised floors are installed. Escape routes change. The use of parts of the building changes. At some point, you have to ask a simple question: Does the fire strategy still describe the building that actually exists? Buildings don't stay the same This is something I think gets missed when people look at existing fire doors. Someone can arrive on site with a door schedule or an old set of drawings and…