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// CODE SNIPPET

712.1.9 Two-Story Openings

Building Code 2018 of Illinois > 7 Fire and Smoke Protection Features > 712 Vertical Openings > 712.1 General > 712.1.9 Two-Story Openings
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In other than Groups I-2 and I-3, a vertical opening that is not used as one of the applications listed in this section shall be permitted if the opening complies with all of the following items:
  1. Does not connect more than two stories.
  2. Does not penetrate a horizontal assembly that separates fire areas or smoke barriers that separate smoke compartments.
  3. Is not concealed within the construction of a wall or a floor/ceiling assembly.
  4. Is not open to a corridor in Group I and R occupancies.
  5. Is not open to a corridor on nonsprinklered floors.
  6. Is separated from floor openings and air transfer openings serving other floors by construction conforming to required shaft enclosures.

Related Code Sections


712.1.9 Fire and Smoke Protection Features, Two-Story Openings
if the opening complies with all of the following items: Does not connect more than two stories. Does not penetrate a horizontal assembly ...
Building Code 2021 of Illinois > 7 Fire and Smoke Protection Features > 712 Vertical Openings > 712.1 General > 712.1.9 Two-Story Openings
712.1.9 Fire and Smoke Protection Features, Two-Story Openings
if the opening complies with all of the following items: Does not connect more than two stories. Does not penetrate a horizontal assembly that separates fire ...
Building Code 2018 of Illinois > 7 Fire and Smoke Protection Features > 712 Vertical Openings > 712.1 General > 712.1.9 Two-Story Openings
404.5 Special Detailed Requirements Based on Occupancy and Use, Smoke Control
two stories when all of the following are met: 2.1.  Only the two lowest stories shall be permitted to be open to the atrium ...
Building Code 2021 of Illinois > 4 Special Detailed Requirements Based on Occupancy and Use > 404 Atriums > 404.5 Smoke Control
903.2.11.1.2 Fire Protection and Life Safety Systems, Openings on One Side Only
, the story shall be equipped throughout with an approved automatic sprinkler system , or openings shall be provided on not fewer than two sides ...
Building Code 2021 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.2 Where Required > 903.2.11 Specific Building Areas and Hazards > 903.2.11.1 Stories Without Openings > 903.2.11.1.2 Openings on One Side Only
903.2.11.1.2 Fire Protection and Life Safety Systems, Openings on One Side Only
, the story shall be equipped throughout with an approved automatic sprinkler system , or openings shall be provided on not fewer than two sides ...
Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.2 Where Required > 903.2.11 Specific Building Areas and Hazards > 903.2.11.1 Stories Without Openings > 903.2.11.1.2 Openings on One Side Only
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