Page 240 - 2018_IFC

CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS

5. Group I. provide a clear opening width of 28 inches (711 mm). The
minimum clear opening height of doorways shall be 80
6. Group M.
inches (2032 mm).
Exception: Buildings less than 3,000 square feet Exceptions:
2
(279 m ) in gross sales area on one story only,
excluding mezzanines. 1. The minimum and maximum width shall not apply
to door openings that are not part of the required
7. Group R-1. means of egress in occupancies in Group R-2 and
R-3 units that are not required to be an Accessible
Exception: Where each sleeping unit has direct
Type A unit or Type B unit.
access to the outside of the building at grade.
2. Door openings to storage closets less than 10
8. Group R-2. square feet (0.93 m ) in area shall not be limited by
2
Exception: Where each dwelling unit or sleeping the minimum clear opening width.
unit has direct access to the outside of the building at 3. The width of door leaves in revolving doors that
grade. comply with Section 1010.1.4.1 shall not be lim-
ited.
1104.5.1 Emergency power duration and installation.
Emergency power for means of egress illumination shall 4. The maximum width of door leaves in power-
be provided in accordance with Section 1203. In other operated doors that comply with Section
than Group I-2, emergency power shall be provided for 1010.1.4.2 shall not be limited.
not less than 60 minutes for systems requiring emergency 5. Door openings within a dwelling unit shall have a
power. minimum clear opening height of 78 inches (1981
mm).
1104.6 Guards. Guards complying with this section shall be
provided at the open sides of means of egress that are more 6. In dwelling and sleeping units that are not required
than 30 inches (762 mm) above the floor or grade below. to be Accessible units, Type A units or Type B
units, exterior door openings, other than the
1104.6.1 Height of guards. Guards shall form a protective required exit door, shall have a minimum clear
barrier not less than 42 inches (1067 mm) high. opening height of 76 inches (1930 mm).
Exceptions: 7. Exit access doors serving a room not larger than 70
2
square feet (6.5 m ) shall have a minimum door
1. Existing guards on the open side of exit access
leaf width of 24 inches (610 mm).
and exit stairways and ramps shall be not less
than 30 inches (760 mm) high. 8. The minimum clear opening width shall not apply
to doors for nonaccessible showers or sauna com-
2. Existing guards within dwelling units shall be not partments.
less than 36 inches (910 mm) high.
9. The minimum clear opening width shall not apply
3. Existing guards in assembly seating areas. to the doors for nonaccessible toilet stalls.
1104.6.2 Opening limitations. Open guards shall have 10. Door closers and door stops shall be permitted to
balusters or ornamental patterns such that a 6-inch-diame- be 78 inches (1980 mm) minimum above the floor.
ter (152 mm) sphere cannot pass through any opening up 1104.7.1 Group I-2. In Group I-2 occupancies, means of
to a height of 34 inches (864 mm). egress doors where used for the movement of beds shall
1
provide a minimum clear opening width of 41 / inches
Exceptions: 2
(1054 mm).
1. At elevated walking surfaces for access to, and Doors serving as means of egress doors and not used
use of, electrical, mechanical or plumbing sys- for movement of beds shall provide a minimum clear
tems or equipment, guards shall have balusters or opening width of 32 inches (813 mm).
be of solid materials such that a sphere with a 1104.7.2 Ambulatory care. In ambulatory care facilities,
diameter of 21 inches (533 mm) cannot pass doors serving as means of egress from patient treatment
through any opening.
rooms shall provide a minimum clear opening width of 32
2. In occupancies in Group I-3, F, H or S, the clear inches (813 mm).
distance between intermediate rails measured at 1104.8 Opening force for doors. The opening force for inte-
right angles to the rails shall not exceed 21 inches rior side-swinging doors without closers shall not exceed a 5-
(533 mm). pound (22 N) force. The opening forces do not apply to the
force required to retract latch bolts or disengage other devices
3. Approved existing open guards.
that hold the door in a closed position. For other side-swing-
1104.7 Size of doors. The required capacity of each door ing, sliding and folding doors, the door latch shall release
opening shall be sufficient for the occupant load thereof and when subjected to a force of not more than 15 pounds (66 N).
shall provide a minimum clear opening width of 28 inches The door shall be set in motion when subjected to a force not
(711 mm). Where this section requires a minimum clear exceeding 30 pounds (133 N). The door shall swing to a full-
opening width of 28 inches (711 mm) and a door opening open position when subjected to a force of not more than 50
includes two door leaves without a mullion, one leaf shall pounds (222 N). Forces shall be applied to the latch side.

2018 INTERNATIONAL FIRE CODE ® 207
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