The Ontario Building Code | Elevators, Slide Escapes and Windows as Means of Egress
188.8.131.52. Elevators, Slide Escapes and windows as Means of Egress
(1) Elevators, slide escapes or windows shall not be considered as part of a required means of egress.
(2) Except for floor areas of mercantile occupancy, casement windows not less than 1 060 mm high, 560 mm wide, with a sill height not more than 900 mm above the inside floor, are permitted to be considered part of a required means of egressto provide access to fire escapes, when fire escapes are permitted.