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1003.3.1 Headroom
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Protruding objects are permitted to extend below the minimum ceiling height required by Section 1003.2 where a minimum headroom of 80 inches (2032 mm) is provided over any circulation paths, including walks, corridors, aisles and passageways. Not more than 50 percent of the ceiling area of a means of egress shall be reduced in height by protruding objects.
Exception: Door closers and stops shall not reduce headroom to less than 78 inches (1981 mm).
A barrier shall be provided where the vertical clearance above a circulation path is less than 80 inches (2032 mm) high above the finished floor. The leading edge of such a barrier shall be located 27 inches (686 mm) maximum above the finished floor.
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1003.3.1 Means of Egress, Headroom
Protruding objects are permitted to extend below the minimum ceiling height required by Section 1003.2 where a minimum headroom of 80 inches (2032 mm ...
Building Code 2021 of Illinois > 10 Means of Egress > 1003 General Means of Egress > 1003.3 Protruding Objects > 1003.3.1 Headroom
1003.3.1 Means of Egress, Headroom
Protruding objects are permitted to extend below the minimum ceiling height required by Section 1003.2 where a minimum headroom of 80 inches (2032 ...
Building Code 2018 of Illinois > 10 Means of Egress > 1003 General Means of Egress > 1003.3 Protruding Objects > 1003.3.1 Headroom
1011.3 Means of Egress, Headroom
Stairways shall have a headroom clearance of not less than 80 inches (2032 mm) measured vertically from a line connecting the edge of the nosings ...
1011.3 Means of Egress, Headroom
Stairways shall have a headroom clearance of not less than 80 inches (2032 mm) measured vertically from a line connecting the edge of the nosings ...
1012.5.2 Means of Egress, Headroom
The minimum headroom in all parts of the means of egress ramp shall be not less than 80 inches (2032 mm) above the finished floor of the ramp ...
Building Code 2021 of Illinois > 10 Means of Egress > 1012 Ramps > 1012.5 Minimum Dimensions > 1012.5.2 Headroom