Pete25

Yes, its true, a secondary route of escape can just be an escape window (certain heights and sizes) with nothing there once you are out of the window. The rest is the 'responsibility of the brigades'. So it's up to you what you do - wave at the fire brigade from your window when they try to get to you or put something in place that gets you down. A fire escape ladder from a gable end is a lot more attractive than one that goes over the tiles of a roof!