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// CODE SNIPPET

1029.6.1 Without Smoke Protection

Building Code 2018 of Illinois > 10 Means of Egress > 1029 Assembly > 1029.6 Capacity of Aisle for Assembly > 1029.6.1 Without Smoke Protection
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The required capacity in inches (mm) of the aisles for assembly seating without smoke protection shall be not less than the occupant load served by the egress element in accordance with all of the following, as applicable:
  1. Not less than 0.3 inch (7.6 mm) of aisle capacity for each occupant served shall be provided on stepped aisles having riser heights 7 inches (178 mm) or less and tread depths 11 inches (279 mm) or greater, measured horizontally between tread nosings.
  2. Not less than 0.005 inch (0.127 mm) of additional aisle capacity for each occupant shall be provided for each 0.10 inch (2.5 mm) of riser height above 7 inches (178 mm).
  3. Where egress requires stepped aisle descent, not less than 0.075 inch (1.9 mm) of additional aisle capacity for each occupant shall be provided on those portions of aisle capacity that do not have a handrail within a horizontal distance of 30 inches (762 mm).
  4. Ramped aisles, where slopes are steeper than one unit vertical in 12 units horizontal (8-percent slope), shall have not less than 0.22 inch (5.6 mm) of clear aisle capacity for each occupant served. Level or ramped aisles, where slopes are not steeper than one unit vertical in 12 units horizontal (8-percent slope), shall have not less than 0.20 inch (5.1 mm) of clear aisle capacity for each occupant served.

Related Code Sections


1029.6.1 Means of Egress, Without Smoke Protection
The required capacity in inches (mm) of the aisles for assembly seating without smoke protection shall be not less than the occupant load served ...
Building Code 2018 of Illinois > 10 Means of Egress > 1029 Assembly > 1029.6 Capacity of Aisle for Assembly > 1029.6.1 Without Smoke Protection
1030.6.1 Means of Egress, Without Smoke Protection
The required capacity in inches (mm) of the aisles for assembly seating without smoke protection shall be not less than the occupant load served ...
Building Code 2021 of Illinois > 10 Means of Egress > 1030 Assembly > 1030.6 Capacity of Aisle for Assembly > 1030.6.1 Without Smoke Protection
907.2.10.6 Fire Protection and Life Safety Systems, Power Source
and without a disconnecting switch other than as required for overcurrent protection. Exception: Smoke alarms are not required to be equipped ...
Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 907 Fire Alarm and Detection Systems > 907.2 Where Required—New Buildings and Structures > 907.2.10 Single- And Multiple-Station Smoke Alarms > 907.2.10.6 Power Source
907.2.11.6 Fire Protection and Life Safety Systems, Power Source
and without a disconnecting switch other than as required for overcurrent protection. Exception: Smoke alarms are not required to be equipped ...
Building Code 2021 of Illinois > 9 Fire Protection and Life Safety Systems > 907 Fire Alarm and Detection Systems > 907.2 Where Required—New Buildings and Structures > 907.2.11 Single- And Multiple-Station Smoke Alarms > 907.2.11.6 Power Source
716.4 Fire and Smoke Protection Features, Fire Protective Curtain Assembly
Approved fire protective curtain assemblies shall be constructed of any materials or assembly of component materials tested without hose stream ...
Building Code 2021 of Illinois > 7 Fire and Smoke Protection Features > 716 Opening Protectives > 716.4 Fire Protective Curtain Assembly
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