ADOPTS WITH AMENDMENTS:

International Existing Building Code 2018 (IEBC 2018)

Heads up: There are no amended sections in this chapter.

14R-7-701 The provisions of Section 701 of IEBC are adopted by reference with the following modifications:

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

Level 1 alterations as described in Section 602 shall comply with the requirements of this chapter. Level 1 alterations to historic buildings shall comply with this chapter, except as modified in Chapter 12.

An existing building or portion thereof shall not be altered such that the building becomes less safe than its existing condition.

Exception: Where the current level of safety, fire protection or sanitation is proposed to be reduced, the portion altered shall conform to the requirements of the Chicago Building Code.

14R-7-702 The provisions of Section 702 of IEBC are adopted by reference with the following modifications:

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

Amended Coun. J. 10-7-20, p. 21791.

Newly installed interior wall and ceiling finishes shall comply with Chapter 8 of the Chicago Building Code.
New interior floor finish, including new carpeting used as an interior floor finish material, shall comply with Section 804 of the Chicago Building Code.
Newly installed interior trim materials shall comply with Section 806 of the Chicago Building Code.

In Group R buildings containing dwelling units or sleeping units, window opening control devices complying with ASTM F2090 shall be installed where an existing window is replaced and where all of the following apply to the replacement window:

  1. The window is operable.
  2. The window replacement includes replacement of the sash and the frame.
  3. One of the following applies:

    1. 3.1. In Group R-1, R-2, R-3 or R-4 dwelling units and sleeping units, the top of the sill of the window opening is at a height less than 36 inches (915 mm) above the finished floor.
    2. 3.2. In Group R-5 and townhouse dwelling units, the top sill of the window opening is at a height less than 24 inches (610 mm) above the finished floor.
  4. The window will allow openings that will allow passage of a 4-inch (102 mm) diameter sphere at a point below 42 inches (1067 mm) above the finished floor when the window is in its largest opened position.
  5. The vertical distance from the top of the sill of the window opening to the finished grade or other surface below, on the exterior of the building, is greater than 72 inches (1829 mm).

Exception: Operable windows that comply with Section 1015.8 of the Chicago Building Code.

New work shall comply with the materials and methods requirements in the Chicago Construction Codes as applicable, that specify material standards, detail of installation and connection, joints, penetrations, and continuity of any element, component, or system in the building.

The following sections of the Chicago Fuel Gas Code shall constitute the fuel gas materials and methods requirements for Level 1 alterations.

  1. Chapter 3, entitled "General Regulations," except Sections 303.7 and 306.
  2. Chapter 4, entitled "Gas Piping Installations," except Sections 401.8 and 402.3.

    1. 2.1. Sections 401.8 and 402.3 shall apply where the work being performed increases the load on the system such that the existing pipe does not meet the size required by code. Existing systems that are modified shall not require resizing as long as the load on the system is not increased and the system length is not increased even if the altered system does not meet code minimums.
  3. Chapter 5, entitled "Chimneys and Vents."
  4. Chapter 6, entitled "Specific Appliances."

14R-7-703 The provisions of Section 703 of IEBC are adopted by reference without modification.

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

Alterations shall be done in a manner that maintains the level of fire protection provided.

14R-7-704 The provisions of Section 704 of IEBC are adopted by reference without modification.

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

Alterations shall be done in a manner that maintains the level of protection provided for the means of egress.

14R-7-705 The provisions of Section 705 of IEBC are not adopted. The following language shall be inserted as Section 705:

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

Alterations to a roof shall comply with Section 306.

14R-7-706 The provisions of Section 706 of IEBC are adopted by reference with the following modifications:

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

Where alteration or repair work includes replacement of equipment that is supported by the building or reroofing, the provisions of this section shall apply.

Any existing gravity load-carrying structural element for which an alteration or repair causes an increase in design dead, live or snow load, including snow drift effects, of more than 5 percent shall be replaced or altered as needed to carry the gravity loads required by the Chicago Building Code for new structures.

Exceptions:

  1. Buildings of Group R-5 occupancy where the altered building complies with the conventional light-frame construction methods of the Chicago Building Code.
  2. Buildings in which the increased dead load is due entirely to the addition of a second layer of roof covering over an existing single layer of roof covering.
The requirements of this section shall apply to alteration or repair work involving reroofing of Risk Category IV buildings.
Where a permit is issued for reroofing for more than 25 percent of the roof area of a building assigned to Risk Category IV that has parapets constructed of unreinforced masonry, the work shall include installation of parapet bracing unless a structural evaluation demonstrates compliance of such items. Reduced seismic forces shall be permitted.
Where roofing materials are removed from more than 50 percent of the roof diaphragm or section of a Risk Category IV building, roof diaphragms, connections of the roof diaphragm to roof framing members, and roof-to-wall connections shall be evaluated for the wind loads specified in the Chicago Building Code, including wind uplift. If the diaphragms and connections in their current condition are not capable of resisting 75 percent of those wind loads, they shall be replaced or strengthened in accordance with the loads specified in the Chicago Building Code.

14R-7-707 The provisions of Section 707 of IEBC are adopted by reference with the following modification:

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

Level 1 alterations to existing buildings or structures do not require 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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