16.1. Exit doors in family-type buildings:
Every exit door required in a family-type building shall:
(a) have a minimum headroom clearance of 1.88 m; no device shall be installed in such a way as to reduce the headroom clearance to less than 1.85 m;
(b) pivot on a vertical axis;
(c) normally be kept closed when placed in a fire separation and shall be provided with a reliable self-closing device and a latch;
(d) when locked, shall be provided with a mechanism such that it can be readily opened without the use of a key; such mechanism shall be easy to operate, even in the dark;
(e) open onto a landing whose width and length measure at least the width of the door.