ADOPTS WITH AMENDMENTS:

International Existing Building Code 2018 (IEBC 2018)

Heads up: There are no amended sections in this chapter.
Editor's Note—Because of the extensive changes to this chapter made by the ordinance adopted February 19, 2020, Sections 902 through 905, as amended, are reprinted in their entirety.

14R-9-901 The provisions of Section 901 of IEBC are adopted by reference without modification.

Added Coun. J. 4-10-19, p. 100029.

Level 3 alterations as described in Section 604 shall comply with the requirements of this chapter.

In addition to the provisions of this chapter, work shall comply with all of the requirements of Chapters 7 and 8. The requirements of Sections 802, 803, 804 and 805 shall apply within all work areas whether or not they include exits and corridors shared by more than one tenant and regardless of the occupant load.

Exception: Buildings in which the reconfiguration of space affecting exits or shared egress access is exclusively the result of compliance with the accessibility requirements of Section 305.7 shall not be required to comply with this chapter.

14R-9-902 The provisions of Section 902 of IEBC are adopted by reference with the following modifications:

Added Coun. J. 4-10-19, p. 100029.

Amended Coun. J. 2-19-20, p. 14474.

High-rise buildings shall comply with the requirements of Sections 902.1.1 and 902.1.2.
Where a story is served by a recirculating air or exhaust system with a capacity greater than 15,000 cubic feet per minute (701 m3/s), that system shall be equipped with smoke and heat detection devices installed in accordance with the Chicago Mechanical Code.
Where there is an elevator or elevators for public use, not fewer than one elevator serving the work area shall comply with this section. Existing elevators with a travel distance of 25 feet (7620 mm) or more above or below the main floor or other level of a building and intended to serve the needs of emergency personnel for fire-fighting or rescue purposes shall be provided with emergency operation in accordance with Chapter 4 of the Chicago Conveyance Device Code. New elevators shall be provided with Phase I emergency recall operation and Phase II emergency in-car operation in accordance with Chapter 3 of the Chicago Conveyance Device Code.

Boiler and furnace equipment rooms adjacent to or within Group E, I and R occupancies other than for equipment within and serving a single dwelling unit, shall be enclosed as required by Section 509 of the Chicago Building Code.

14R-9-903 The provisions of Section 903 of IEBC are adopted by reference with the following modifications:

Added Coun. J. 4-10-19, p. 100029.

Amended Coun. J. 2-19-20, p. 14474.

Existing stairways that are part of the means of egress shall be enclosed in accordance with Section 802.2.1 from the highest work area story to, and including, the level of exit discharge and all stories below.
Fire separation in Group R townhouses shall be in accordance with Section 903.2.1.

Where the work area is in any multi-story side-by-side attached dwelling unit in Group R-3 or R-5 or any Group R-2 townhouse, walls separating the dwelling units that are not continuous from the foundation to the underside of the roof sheathing shall be improved to provide a continuous fire separation using construction materials consistent with the existing wall or complying with the requirements for new structures. Work shall be performed on the side of the dwelling unit wall that is part of the work area.

Exception: Where alterations or repairs do not result in the removal of wall or ceiling finishes exposing the structure, walls are not required to be continuous through concealed floor spaces.

Interior finish in exits serving the work area shall comply with Section 802.4 between the highest story on which there is a work area to the level of exit discharge.

14R-9-904 The provisions of Section 904 of IEBC are adopted by reference with the following modifications:

Added Coun. J. 4-10-19, p. 100029.

Amended Coun. J. 2-19-20, p. 14474.

An automatic sprinkler system shall be provided in a work area where required by Section 803.2 or this section.
In high-rise buildings, an automatic sprinkler system shall be installed throughout work areas. If a new fire pump or risers are required, the new components of the system shall be sized for future installation of an automatic sprinkler system for the entire building.
Rubbish and linen chutes located in the work area shall be provided with automatic sprinkler system protection or an approved automatic fire-extinguishing system where protection of the rubbish and linen chute would be required under the provisions of the Chicago Building Code for new construction.

Work areas shall be provided with an automatic sprinkler system in accordance with the Chicago Building Code where any of the following conditions exist:

  1. A Group F-1 occupancy where the area used for the manufacture of upholstered furniture or mattresses exceeds 2,500 square feet (232 m2).
  2. A Group M occupancy where the area used for the display and sale of upholstered furniture or mattresses exceeds 5,000 square feet (464 m2).
  3. A Group S-1 occupancy where the area used for the storage of upholstered furniture or mattresses exceeds 2,500 square feet (232 m2).
In buildings and areas listed in Table 903.2.11.8 of the Chicago Building Code, other than live/work units, work areas that have exits or corridors shared by more than one tenant or that have exits or corridors serving an occupant load greater than 30 shall be provided with an automatic sprinkler system if the work area is required to be provided with an automatic sprinkler system in accordance with the Chicago Building Code applicable to new construction.
Fire alarm and detection shall be provided as required by Sections 904.2.1 and 904.2.2 in accordance with Section 907 of the Chicago Building Code as required for new construction.

Where required by the Chicago Building Code, a manual fire alarm system shall be provided throughout the work area. Alarm notification appliances shall be provided on such stories and shall be activated as required by the Chicago Building Code.

Exceptions:

  1. Alarm-initiating and notification appliances shall not be required to be installed in tenant spaces outside of the work area.
  2. Visual alarm notification appliances are not required, except where an existing alarm system is upgraded or replaced or where a new fire alarm system is installed.
Where required by the Chicago Building Code for new buildings, automatic fire detection systems shall be provided throughout the work area.

14R-9-905 The provisions of Section 905 of IEBC are adopted by reference with the following modifications.

Added Coun. J. 4-10-19, p. 100029.

Amended Coun. J. 2-19-20, p. 14474.

The means of egress shall comply with the requirements of Section 805 except as specifically required in Sections 905.2 and 905.3.
Means of egress from the highest work area story to the level of exit discharge shall be provided with artificial lighting within the exit enclosure in accordance with the requirements of the Chicago Building Code and the Chicago Electrical Code.
Means of egress from the highest work area story to the level of exit discharge shall be provided with exit signs in accordance with the requirements of the Chicago Building Code.

14R-9-906 The provisions of Section 906 of IEBC are adopted by reference with the following modifications:

Added Coun. J. 4-10-19, p. 100029.

Where buildings are undergoing Level 3 alterations, the provisions of this section shall apply.

Where work involves a substantial structural alteration, the lateral load-resisting system of the altered building shall be shown to satisfy the requirements of Sections 1609 and 1613 of the Chicago Building Code. Reduced seismic forces shall be permitted.

Exceptions:

  1. Buildings of Group R-5 occupancy that are altered based on the conventional light-frame construction methods of the Chicago Building Code.
  2. Where the intended alteration involves only the lowest story above grade plane of a building, only the lateral load resisting components in and below that story need comply with this section.
For any building assigned to Seismic Design Category D with a structural system that includes concrete or reinforced masonry walls with a flexible roof diaphragm, the alteration work shall include installation of wall anchors at the roof line of all subject buildings and at the floor lines of unreinforced masonry buildings unless an evaluation demonstrates compliance of existing wall anchorage. Reduced seismic forces shall be allowed.
For any building assigned to Seismic Design Category C or D with a structural system that includes unreinforced masonry bearing walls, the alteration work shall include installation of wall anchors at the roof line, unless an evaluation demonstrates compliance of existing wall anchorage. Reduced seismic forces shall be allowed.
Parapets constructed of unreinforced masonry in buildings assigned to Seismic Design Category C or D shall have bracing installed as needed to resist the reduced seismic forces in accordance with Section 303.3, unless an evaluation demonstrates compliance of such items. Use of reduced seismic forces shall be allowed.
Where the building is assigned to Seismic Design Category C or D unreinforced masonry partitions and nonstructural walls within the work area and adjacent to egress paths from the work area shall be anchored, removed, or altered to resist out-of-plane seismic forces, unless an evaluation demonstrates compliance of such items. Use of reduced seismic forces shall be allowed.

14R-9-907 The provisions of Section 907 of IEBC are adopted by reference with the following modification:

Added Coun. J. 4-10-19, p. 100029.

Level 3 alterations to existing buildings or structures are allowed without requiring the entire building or structure to comply with the energy requirements of the Chicago Energy Conservation Code. The alterations shall conform to the energy requirements of the Chicago Energy Conservation Code.
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