Page 183 - 2018_IFC

MEANS OF EGRESS

POWER-OPERATED DOOR. barrier shall be located 27 inches (686 mm) maximum
PUBLIC WAY. above the finished floor.
RAMP. [BE] 1003.3.2 Post-mounted objects. A free-standing
object mounted on a post or pylon shall not overhang that
SCISSOR STAIRWAY.
post or pylon more than 4 inches (102 mm) where the low-
SELF-LUMINOUS.
est point of the leading edge is more than 27 inches (686
SMOKE-PROTECTED ASSEMBLY SEATING. mm) and less than 80 inches (2032 mm) above the fin-
STAIR. ished floor. Where a sign or other obstruction is mounted
STAIRWAY. between posts or pylons and the clear distance between the
posts or pylons is greater than 12 inches (305 mm), the
STAIRWAY, INTERIOR EXIT.
lowest edge of such sign or obstruction shall be 27 inches
STAIRWAY, SPIRAL.
(686 mm) maximum or 80 inches (2032 mm) minimum
WINDER. above the finished floor or ground.
Exception: These requirements shall not apply to slop-
ing portions of handrails between the top and bottom
SECTION 1003
GENERAL MEANS OF EGRESS riser of stairs and above the ramp run.
[BE] 1003.3.3 Horizontal projections. Objects with lead-
[BE] 1003.1 Applicability. The general requirements speci- ing edges more than 27 inches (685 mm) and not more
fied in Sections 1003 through 1015 shall apply to all three than 80 inches (2030 mm) above the finished floor shall
elements of the means of egress system, in addition to those not project horizontally more than 4 inches (102 mm) into
specific requirements for the exit access, the exit and the exit the circulation path.
discharge detailed elsewhere in this chapter. 1
Exception: Handrails are permitted to protrude 4 /
[BE] 1003.2 Ceiling height. The means of egress shall have inches (114 mm) from the wall or guard. 2
a ceiling height of not less than 7 feet 6 inches (2286 mm) [BE] 1003.3.4 Clear width. Protruding objects shall not
above the finished floor.
reduce the minimum clear width of accessible routes.
Exceptions:
[BE] 1003.4 Slip-resistant surface. Circulation paths of the
1. Sloped ceilings in accordance with Section 1207.2 means of egress shall have a slip-resistant surface and be
of the International Building Code.
securely attached.
2. Ceilings of dwelling units and sleeping units within [BE] 1003.5 Elevation change. Where changes in elevation
residential occupancies in accordance with Section of less than 12 inches (305 mm) exist in the means of egress,
1207.2 of the International Building Code.
sloped surfaces shall be used. Where the slope is greater than
3. Allowable projections in accordance with Section one unit vertical in 20 units horizontal (5-percent slope),
1003.3. ramps complying with Section 1012 shall be used. Where the
4. Stair headroom in accordance with Section 1011.3. difference in elevation is 6 inches (152 mm) or less, the ramp
5. Door height in accordance with Section 1010.1.1. shall be equipped with either handrails or floor finish materi-
als that contrast with adjacent floor finish materials.
6. Ramp headroom in accordance with Section
1012.5.2. Exceptions:
7. The clear height of floor levels in vehicular and 1. A single step with a maximum riser height of 7
pedestrian traffic areas of public and private parking inches (178 mm) is permitted for buildings with
garages in accordance with Section 406.2.2 of the occupancies in Groups F, H, R-2, R-3, S and U at
International Building Code. exterior doors not required to be accessible by Chap-
ter 11 of the International Building Code.
8. Areas above and below mezzanine floors in accor-
dance with Section 505.2 of the International Build- 2. A stair with a single riser or with two risers and a
ing Code. tread is permitted at locations not required to be
accessible by Chapter 11 of the International Build-
[BE] 1003.3 Protruding objects. Protruding objects on cir-
culation paths shall comply with the requirements of Sections ing Code, where the risers and treads comply with
1003.3.1 through 1003.3.4. Section 1011.5, the minimum depth of the tread is
13 inches (330 mm) and not less than one handrail
[BE] 1003.3.1 Headroom. Protruding objects are permit- complying with Section 1014 is provided within 30
ted to extend below the minimum ceiling height required inches (762 mm) of the centerline of the normal path
by Section 1003.2 where a minimum headroom of 80 of egress travel on the stair.
inches (2032 mm) is provided over any circulation paths,
including walks, corridors, aisles and passageways. Not 3. A step is permitted in aisles serving seating that has
more than 50 percent of the ceiling area of a means of a difference in elevation less than 12 inches (305
egress shall be reduced in height by protruding objects. mm) at locations not required to be accessible by
Chapter 11 of the International Building Code, pro-
Exception: Door closers and stops shall not reduce vided that the risers and treads comply with Section
headroom to less than 78 inches (1981 mm).
1029.14 and the aisle is provided with a handrail
A barrier shall be provided where the vertical clearance complying with Section 1029.16.
above a circulation path is less than 80 inches (2032 mm) Throughout a story in a Group I-2 occupancy, any change
high above the finished floor. The leading edge of such a
in elevation in portions of the means of egress that serve

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