The Ontario Building Code | Temperature Rise and Area Limits Waived temperature Rise and Area Limits Waived

(1) The temperature rise limits and glass area limits required by Articles and are waived for a closurebetween an exit enclosure and an enclosed vestibule or corridor provided,

(a) the vestibule or corridor is separated from the remainder of the floor area by afire separation having a fire-resistance rating not less than 45 min,

(b) the fire separation required by Clause (a) contains no wireref ="" title ="Electricians in East York">wired glass or glass block within 3 m of the closure into the exit enclosure, and

(c) the vestibule or corridor contains no occupancy.