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// CODE SNIPPET

[F] 903.2.11.1 Stories Without Openings

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
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ILLUSTRATION

An automatic sprinkler system shall be installed throughout all stories, including basements, of all buildings where the floor area exceeds 1,500 square feet (139.4 m2) and where the story does not comply with the following criteria for exterior wall openings:

  1. Openings below grade that lead directly to ground level by an exterior stairway complying with Section 1011 or an outside ramp complying with Section 1012. Openings shall be located in each 50 linear feet (15 240 mm), or fraction thereof, of exterior wall in the story on not fewer than one side. The required openings shall be distributed such that the lineal distance between adjacent openings does not exceed 50 feet (15 240 mm).
  2. Openings entirely above the adjoining ground level totaling not less than 20 square feet (1.86 m2) in each 50 linear feet (15 240 mm), or fraction thereof, of exterior wall in the story on not fewer than one side. The required openings shall be distributed such that the lineal distance between adjacent openings does not exceed 50 feet (15 240 mm). The height of the bottom of the clear opening shall not exceed 44 inches (1118 mm) measured from the floor.

[F] 903.2.11.1.1 Opening Dimensions and Access

Openings shall have a minimum dimension of not less than 30 inches (762 mm). Access to such openings shall be provided for the fire department from the exterior and shall not be obstructed in a manner such that fire fighting or rescue cannot be accomplished from the exterior.

[F] 903.2.11.1.2 Openings on One Side Only

Where openings in a story are provided on only one side and the opposite wall of such story is more than 75 feet (22 860 mm) from such openings, the story shall be equipped throughout with an approved automatic sprinkler system, or openings shall be provided on not fewer than two sides of the story.

[F] 903.2.11.1.3 Basements

Where any portion of a basement is located more than 75 feet (22 860 mm) from openings required by Section 903.2.11.1, or where walls, partitions or other obstructions are installed that restrict the application of water from hose streams, the basement shall be equipped throughout with an approved automatic sprinkler system.

Related Code Sections


903.2.11.1 Fire Protection and Life Safety Systems, Stories Without Openings
square feet (139.4 m 2 ) and where the story does not comply with the following criteria for exterior wall openings: Openings below grade that lead ...
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
915.1.5 Fire Protection and Life Safety Systems, Private Garages
Exceptions: Carbon monoxide detection shall not be required in dwelling units, sleeping units and classrooms without communicating openings between ...
Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 915 Carbon Monoxide Detection > 915.1 General > 915.1.5 Private Garages
803.2.3 Alterations—Level 2, Windowless Stories
Work located in a windowless story, as determined in accordance with the International Building Code , shall be sprinklered where the work area ...
Existing Building Code 2018 of Illinois > 8 Alterations—Level 2 > 803 Fire Protection > 803.2 Automatic Sprinkler Systems > 803.2.3 Windowless Stories
1301.6.10.1 Performance Compliance Methods, Categories
and distributed around the building perimeter at intervals not exceeding 50 feet (15 240 mm). Such openings shall be readily openable from the inside without a key ...
Existing Building Code 2018 of Illinois > 13 Performance Compliance Methods > 1301 General > 1301.6 Evaluation Process > 1301.6.10 Smoke Control > 1301.6.10.1 Categories
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
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