(1)
Except as provided in Sentence (2), at least one egress doorway shall be provided from every room.
(2)
A minimum of 2 egress doorways located so that one doorway could provide egress from the room as required by Article 2.2.6.3. if the other doorway becomes inaccessible to the occupants due to a fire originating in the room, shall be provided for every room
(a)
that is used for a Group G, Division 1 major occupancy, other than one housing livestock with a below-floor storage area for liquid manure, where the area of the room is more than
(i)
15 m
(ii)
30 m
(b)
in a floor area that is not sprinklered throughout and contains a Group G, Division 1 major occupancy housing livestock with a below-floor storage area for liquid manure or a Group G, Division 2 or 3 major occupancy, where
(i)
the area of the room is more than 200 m
(ii)
the travel distance within the room to the nearest egress doorway is more than 15 m, or
(c)
in a floor area that is sprinklered throughout and contains a Group G, Division 1 major occupancy housing livestock with a below-floor storage area for liquid manure or a Group G, Division 2 or 3 major occupancy, where
(i)
the area of the room is more than 300 m
(ii)
the travel distance within the room to the nearest egress doorway is more than 25 m.
(3)
Where 2 egress doorways are required by Sentence (2), they shall be placed at a distance from one another equal to or greater than one third of the maximum overall diagonal dimension of the area to be served, measured as the shortest distance that smoke would have to travel between the nearest required egress doorways.