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// CODE SNIPPET

1011.7.3 Other Vertical Shafts

Existing Building Code 2018 of Illinois > 10 Change of Occupancy > 1011 Change of Occupancy Classification > 1011.7 Enclosure of Vertical Shafts > 1011.7.3 Other Vertical Shafts
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Interior vertical shafts other than stairways, including but not limited to elevator hoistways and service and utility shafts, shall be enclosed as required by the International Building Code where there is a change of use to a higher-hazard category as specified in Table 1011.4.
Exceptions:
  1. Existing 1-hour interior shaft enclosures shall be accepted where a higher rating is required.
  2. Vertical openings, other than stairways, in buildings of other than Group I occupancy and connecting less than six stories shall not be required to be enclosed if the entire building is provided with an approved automatic sprinkler system.

Related Code Sections


1011.7.3 Change of Occupancy, Other Vertical Shafts
Interior vertical shafts other than stairways, including but not limited to elevator hoistways and service and utility shafts, shall be enclosed ...
Existing Building Code 2018 of Illinois > 10 Change of Occupancy > 1011 Change of Occupancy Classification > 1011.7 Enclosure of Vertical Shafts > 1011.7.3 Other Vertical Shafts
1011.8.3 Change of Occupancy, Other Vertical Shafts
Interior vertical shafts other than stairways, including but not limited to elevator hoistways and service and utility shafts, shall be enclosed ...
Existing Building Code 2021 of Illinois > 10 Change of Occupancy > 1011 Change of Occupancy Classification > 1011.8 Enclosure of Vertical Shafts > 1011.8.3 Other Vertical Shafts
403.2.1.2 Special Detailed Requirements Based on Occupancy and Use, Shaft Enclosures
shafts , other than interior exit stairway and elevator hoistway enclosures, is permitted to be reduced to 1 hour where automatic sprinklers ...
Building Code 2021 of Illinois > 4 Special Detailed Requirements Based on Occupancy and Use > 403 High-Rise Buildings > 403.2 Construction > 403.2.1 Reduction in Fire-Resistance Rating > 403.2.1.2 Shaft Enclosures
403.2.1.2 Special Detailed Requirements Based on Occupancy and Use, Shaft Enclosures
shafts , other than interior exit stairway and elevator hoistway enclosures, is permitted to be reduced to 1 hour where automatic sprinklers ...
Building Code 2018 of Illinois > 4 Special Detailed Requirements Based on Occupancy and Use > 403 High-Rise Buildings > 403.2 Construction > 403.2.1 Reduction in Fire-Resistance Rating > 403.2.1.2 Shaft Enclosures
(2) Special Equipment, Other Building Locations
be permitted to be used as follows: CL2P or CL3P — Ducts, plenums, or other spaces used for environmental air CL2R or CL3R — Vertical shafts and risers ...
National Electrical Code 2017 of Illinois > 6 Special Equipment > 600 Electric Signs and Outline Lighting > 600.33 Class 2 Sign Illumination Systems, Secondary Wiring > (A) Insulation and Sizing of Class 2 Conductors > (2) Other Building Locations
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