ADOPTS WITH AMENDMENTS:

International Building Code 2018 (IBC 2018)

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

14B-12-1201 The provisions of Section 1201 of IBC are adopted by reference with the following modification:

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

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

The provisions of this chapter shall govern ventilation, temperature control, lighting, yards and courts, room dimensions, surrounding materials and rodentproofing associated with the interior spaces of buildings.

14B-12-1202 The provisions of Section 1202 of IBC are adopted by reference with the following modifications:

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

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

Every space intended for human occupancy shall be provided with natural ventilation in accordance with Section 1202.5, or mechanical ventilation in accordance with the Chicago Mechanical Code.

Exceptions:

  1. Where the air infiltration rate in a dwelling unit is less than 5 air changes per hour where tested with a blower door at a pressure 0.2 inch w.c. (50 Pa) in accordance with the Chicago Energy Conservation Code, the dwelling unit shall be ventilated by mechanical means in accordance with Section 403 of the Chicago Mechanical Code.
  2. In dwelling units in Group R-2, R-3, and R-5 occupancies, natural ventilation in accordance with Section 1202.5 shall be provided in all living, dining and sleeping rooms.
  3. Rooms containing bathtubs, showers, spas and similar bathing fixtures shall be mechanically ventilated in accordance with the Chicago Mechanical Code.
  4. Ambulatory care facilities and Group I-2 occupancies shall be ventilated by mechanical means in accordance with the Chicago Mechanical Code.
  5. Natural ventilation shall not be substituted for mechanical ventilation in rooms or spaces where mechanical ventilation is specifically required by the Chicago Mechanical Code or Chicago Energy Conservation Code.
  6. Ventilation and exhaust systems for occupancies and operations involving flammable or combustible hazards or other contaminant sources as covered in the Chicago Mechanical Code or the Chicago Fire Prevention Code shall be provided as required by both codes.
Roof assemblies shall be ventilated in accordance with this section or shall comply with Section 1202.3.

Enclosed attics and enclosed rafter spaces formed where ceilings are applied directly to the underside of roof framing members shall have cross ventilation for each separate space by ventilation openings protected against the entrance of rain and snow. Blocking and bridging shall be arranged so as not to interfere with the movement of air. An airspace of not less than 1 inch (25 mm) shall be provided between the insulation and the roof sheathing. The net free ventilating area shall be not less than 1/150 of the area of the space ventilated. Ventilators shall be installed in accordance with manufacturer's installation instructions.

Exception: The net free cross-ventilation area shall be permitted to be reduced to 1/300 provided at least 40 percent and not more than 50 percent of the required venting area is provided by ventilators located in the upper portion of the attic or rafter space. Upper ventilators shall be located not more than 3 feet (914 mm) below the ridge or highest point of the space, measured vertically, with the balance of the ventilation provided by eave or cornice vents. Where the location of wall or roof framing members conflicts with the installation of upper ventilators, installation more than 3 feet (914 mm) below the ridge or highest point of the space shall be permitted.

Exterior openings into the attic space of any building intended for human occupancy shall be protected to prevent the entry of birds, squirrels, rodents, snakes and other similar creatures. Openings for ventilation having a least dimension of not less than 1/16 inch (1.6 mm) and not more than 1/4 inch (6.4 mm) shall be permitted. Openings for ventilation having a least dimension larger than 1/4 inch (6.4 mm) shall be provided with corrosion-resistant wire cloth screening, hardware cloth, perforated vinyl or similar material with openings having a least dimension of not less than 1/16 inch (1.6 mm) and not more than 1/4 inch (6.4 mm). Where combustion air is obtained from an attic area, it shall be in accordance with Chapter 7 of the Chicago Mechanical Code.

Unvented attics and unvented enclosed roof framing assemblies created by ceilings applied directly to the underside of the roof framing members/rafters and the structural roof sheathing at the top of the roof framing members shall be permitted where all of the following conditions are met:

  1. The unvented attic space is completely within the building thermal envelope.
  2. No interior Class I vapor retarders are installed on the ceiling side (attic floor) of the unvented attic assembly or on the ceiling side of the unvented enclosed roof framing assembly.
  3. Where wood shingles or shakes are used, not less than a 1/4-inch (6.4 mm) vented airspace separates the shingles or shakes and the roofing underlayment above the structural sheathing.
  4. Any air-impermeable insulation shall be a Class II vapor retarder or shall have a Class II vapor retarder coating or covering in direct contact with the underside of the insulation.
  5. Insulation shall be located in accordance with the following:

    1. 5.1. Item 5.1.1, 5.1.2, 5.1.3 or 5.1.4 shall be met, depending on the air permeability of the insulation directly under the structural roof sheathing.

      1. 5.1.1. Where only air-impermeable insulation is provided, it shall be applied in direct contact with the underside of the structural roof sheathing.
      2. 5.1.2. Where air-permeable insulation is provided inside the building thermal envelope, it shall be installed in accordance with Item 5.1.1. In addition to the air-permeable insulation installed directly below the structural sheathing, rigid board or sheet insulation shall be installed directly above the structural roof sheathing in accordance with the R-values in Table 1202.3 for condensation control.
      3. 5.1.3. Where both air-impermeable insulation and air-permeable insulation are provided, the air-impermeable insulation shall be applied in direct contact with the underside of the structural roof sheathing in accordance with Item 5.1.1 and shall be in accordance with the R-values in Table 1202.3 for condensation control. The air-permeable insulation shall be installed directly under the air-impermeable insulation.
    2. 5.2. Where preformed insulation board is used as the air-impermeable insulation layer, it shall be sealed at the perimeter of each individual sheet interior surface to form a continuous layer.

Exceptions:

  1. Section 1202.3 does not apply to special use structures or enclosures such as swimming pool enclosures, data processing centers, hospitals or art galleries.
  2. Section 1202.3 does not apply to enclosures that are humidified beyond 35 percent during winter months.

TABLE 1202.3

INSULATION FOR CONDENSATION CONTROL

CLIMATE ZONE MINIMUM R-VALUE OF AIR-IMPERMEABLE INSULATIONa
5 R-20
  1. Contributes to, but does not supersede, thermal resistance requirements for attic and roof assemblies in the Chicago Energy Conservation Code.
The space between the bottom of the floor joists and the earth under any building except spaces occupied by basements or cellars shall be provided with ventilation in accordance with Section 1202.4.1 or 1202.4.3.
Ventilation openings through foundation walls shall be provided. The openings shall be placed so as to provide cross-ventilation of the under-floor space. The net area of ventilation openings shall be in accordance with Section 1202.4.1.1 or 1202.4.1.2.
The net area of ventilation openings for crawl spaces with uncovered earth floors shall be not less than 1 square foot for each 150 square feet (0.67 m2 for each 100 m2) of crawl space area.
The net area of ventilation openings for crawl spaces with the ground surface covered with a Class I vapor retarder shall be not less than 1 square foot for each 1,500 square feet (0.67 m2 for each 1000 m2) of crawl space area.
Mechanical ventilation shall be provided to crawl spaces where the ground surface is covered with a Class I vapor retarder. Ventilation shall be in accordance with Section 1202.4.3.1 or 1202.4.3.2.
Continuously operated mechanical ventilation shall be provided at a rate of 1.0 cubic foot per minute (cfm) for each 50 square feet (1.02 L/s for each 10 m2) of crawl space ground surface area and the ground surface shall be covered with a Class I vapor retarder.

The crawl space shall be conditioned in accordance with the Chicago Mechanical Code and the walls of the crawl space shall be insulated in accordance with the Chicago Energy Conservation Code.

Where required, natural ventilation shall be through windows, doors, louvers or other openings to the outdoors that open upon a public way or a yard or court complying with Section 1205. The operating mechanism for such openings shall be readily controllable by the occupants of the room or spaced served.
The net openable area of the openings to the outdoors, without regard for window opening control devices or limiters, shall be at least 4 percent of the floor area being ventilated.
For the purpose of natural ventilation, any space is permitted to be considered as a portion of an adjoining room where at least onehalf of the area of the common wall is open and unobstructed and provides an opening of not less than 10 percent of the floor area of the interior space or 25 square feet (2.32 m2), whichever is greater. The net openable area shall be at least 4 percent of the aggregate floor area.

Where rooms and spaces without openings to the outdoors are ventilated through an adjoining room, the opening to the adjoining room shall either:

  1. Be unobstructed and shall have an area of not less than 8 percent of the floor area of the remote room or space, but not less than 25 square feet (2.3 m2).
  2. Be equipped with doors, movable panels, or louvers that are operable from within the remote room and that when fully open provide a net open area of not less than 10 percent of the floor area of the remote room or space, but not less than 30 square feet (2.8 m2).

The openable area of the openings to the outdoors shall be based on the total floor area being ventilated.

Where at least 40 percent of the net floor area of a Group R dwelling unit, not used as congregate living facilities, is located entirely above grade and provided with natural ventilation as required in this section, basement-level occupiable spaces may be provided with mechanical ventilation and exhaust providing at least 0.35 air changes per hour in lieu of natural ventilation openings.
Where openings below grade provide required natural ventilation, the outside horizontal clear space measured perpendicular to the opening shall be one and one-half times the depth of the opening. The depth of the opening shall be measured from the average adjoining ground level to the bottom of the opening.

Contaminant sources in naturally ventilated spaces shall be removed in accordance with the Chicago Mechanical Code and the Chicago Fire Prevention Code.

14B-12-1203 The provisions of Section 1203 of IBC are adopted by reference with the following modifications:

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

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

Interior spaces intended for human occupancy shall be provided with active or passive space heating systems capable of maintaining an indoor temperature of not less than 68°F (20°C) at a point 3 feet (914 mm) above the floor when the outdoor temperature is -7°F (-22°C).

Exceptions: Space heating systems are not required for:

  1. Interior spaces where the primary purpose of the space is not associated with human comfort.
  2. Group F, H, S or U occupancies.
In Group I-1, I-2, I-4, and R-4 occupancies, interior spaces intended for human occupancy shall be provided with active or passive space cooling systems capable of maintaining an indoor temperature of not more than 75°F (24°C) and not more than 50 percent relative humidity at a point 3 feet (914 mm) above the floor when the outdoor temperature is 100°F (38°C).

14B-12-1204 The provisions of Section 1204 of IBC are adopted by reference with the following modifications:

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

Every space intended for human occupancy shall be provided with natural light in accordance with Section 1204.2 or shall be provided with artificial light in accordance with Section 1204.3.

Exceptions:

  1. In dwelling units and sleeping units in Group R, I-1, and I-2 occupancies, all living, dining, and sleeping rooms shall be provided with natural light in accordance with Section 1204.2 and artificial light in accordance with Section 1204.3.
  2. In Group I-4 occupancies all rooms offering care for children under 2 years of age shall be provided with natural light in accordance with Section 1204.2 and artificial light in accordance with Section 1204.3.
  3. In Group E occupancies, all regular classrooms shall be provided with natural light in accordance with Section 1204.2 and artificial light in accordance with Section 1204.3.

1204.2 Natural Light

ILLUSTRATION
Where required, natural light shall be provided in accordance with Section 1204.2.1, 1204.2.2, 1204.2.3 or 1204.2.4. Openings shall comply with Sections 1204.2.5 and 1204.2.6.
The room shall be provided with exterior openings with a net glazed area of at least 8 percent of the floor area of the room.
For the purpose of natural lighting, any room is permitted to be considered as a portion of an adjoining room where at least one-half of the area of the common wall is open and unobstructed and provides an opening of not less than 10 percent of the floor area of the interior room or 25 square feet (2.32 m2), whichever is greater. The net glazed area of exterior openings shall be at least 8 percent of the aggregate floor area.

A room without sufficient exterior openings is permitted to borrow natural lighting from an adjoining room that meets the requirements of Section 1204.2.1 if the remote room, adjoining room and exterior openings meet all of the following criteria:

  1. The ceiling height in both the remote room and adjoining room shall be no less than 9 feet 4 inches (2844 mm) at the lowest point.
  2. The top of the exterior glazing shall be no less than 9 feet (2743 m) above the finished floor.
  3. The opening between the remote room and the adjoining room shall be parallel to the plane of the exterior glazed openings, as near as possible to the ceiling and either:

    1. 3.1. If open and unobstructed, shall have an area at least 8 percent of the floor area of the remote room or 25 square feet (2.32 m2), whichever is greater.
    2. 3.2. If equipped with transparent or translucent glazing, shall have a net glazed area at least 10 percent of the floor area of the remote room or 30 square feet (2.8 m2), whichever is greater.
  4. The remote room shall be immediately adjacent to the adjoining room.
  5. The net glazed area of exterior openings shall be at least 8 percent of the aggregate floor area of the adjoining room and remote room.

Where at least 40 percent of the net floor area of a Group R dwelling unit, not used as congregate living facilities, is located entirely above grade and provided with natural light in accordance with Section 1204.2.1 or 1204.2.2, basement spaces may be provided with natural light as follows:

  1. Bedrooms shall have exterior openings with a net glazed area of at least 6 percent of the floor area of the room.
  2. For habitable spaces other than bedrooms, the basement level, as a whole, shall be provided with exterior openings with a net glazed area of at least 4 percent of the aggregate floor area of all habitable spaces in the basement.

Exterior openings required by Section 1204.2 for natural light shall open directly onto a public way or a yard or court complying with Section 1205.

Exceptions:

  1. Required exterior openings are permitted to open into an open porch or exterior balcony where the open porch or exterior balcony meets all of the following criteria:

    1. 1.1. Abuts a public way, or a yard or court complying with Section 1205.
    2. 1.2. Has a ceiling height of not less than 7 feet (2134 mm).
    3. 1.3. Has a longer side, parallel to the plane of the openings, at least 65 percent open and unobstructed from finished floor to underside of surface above.
  2. Skylights that are unobstructed to the sky are not required to open directly onto a public way, yard or court.
Where openings below grade are used to provide required natural light, the outside horizontal clear space measured perpendicular to the opening shall be one and one-half times the depth of the opening. The depth of the opening shall be measured from the average adjoining ground level to the bottom of the opening.

Artificial light shall be provided that is adequate to provide an average illumination of 10 footcandles (107 lux) over the area of the room at a height of 30 inches (762 mm) above the floor level. Lighting outlets shall be provided as required in Section 210.70 of the Chicago Electrical Code.

Exception: Within dwelling units, wall switch-controlled receptacles shall be permitted in lieu of lighting outlets in accordance with Section 210.70(A)(1), Exception 1 of the Chicago Electrical Code.

Stairways within dwelling units and exterior stairways serving a single dwelling unit shall have an illumination level on tread runs of not less than 1 footcandle (11 lux). Stairways in other occupancies shall be governed by Chapter 10.
The control for activation of the required stairway lighting shall be in accordance with the Chicago Electrical Code.
The means of egress shall be illuminated in accordance with Section 1008.1.

14B-12-1205 The provisions of Section 1205 of IBC are not adopted. The following language us adopted as Section 1205:

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

This section shall apply to yards and courts adjacent to exterior openings that provide natural light or natural ventilation. Such yards and courts shall be on the same lot as the building. For purposes of this section, width shall be measured perpendicular to the plane of openings and length shall be measured parallel to the plane of openings.
Yards shall be not less than 3 feet (914 mm) in width for an exterior wall not more than 40 feet (12.2 m) in height above the lowest floor receiving natural light or natural ventilation or grade plane, whichever is higher. Where the exterior wall exceeds 40 feet (12.2 m) in height, the minimum width of the yard shall be increased 2 inches (76 mm) for each 1 foot (305 mm) or fraction thereof in height up to a maximum width of 15 feet (4572 mm).
Courts shall be classified as either inner courts or outer courts in accordance with Section 1205.3.1. Outer courts shall comply with Section 1205.3.2. Inner courts shall comply with Section 1205.3.3.

A court that meets either of the following criteria shall be classified as an outer court:

  1. A court with at least 12% of its perimeter opening upon a public way or yard that is at least 15 feet (4572 mm) wide.
  2. A court bounded by building walls no greater than 55 feet (16.8 m) in height opening upon a yard that is at least 3 feet (914 mm) wide. The length of an outer court meeting this criterion shall be not less than 150% of the horizontal dimension of required window openings that open upon the court.

A court that is not classified as an outer court shall be classified as an inner court.

Outer courts shall be not less than 3 feet (914 mm) in width for an exterior wall not more than 40 feet (12.2 m) in height above the lowest floor receiving natural light or natural ventilation or grade plane, whichever is higher. Where the exterior wall exceeds 40 feet (12.2 m) in height, the minimum width of the court shall be increased 2 inches (76 mm) for each 1 foot (305 mm) or fraction thereof in height up to a maximum width of 15 feet (4572 mm). Openings on opposite sides of an outer court shall be separated by not less than 6 feet (1829 mm).
Inner courts shall be not less than 6 feet (1829 mm) in width for an exterior wall not more than 40 feet (12.2 m) in height above the lowest floor receiving natural light or natural ventilation or grade plane, whichever is higher. Where the exterior wall exceeds 40 feet (12.2 m) in height, the minimum width of the inner court shall be increased 4 inches (102 mm) for each 1 foot (305 mm) or fraction thereof in height up to a maximum width of 15 feet (4572 mm). For irregularly-shaped inner courts, the average width shall be at least as great as the minimum width required by this section and the width shall not be less than 5 feet (1524 mm) at any point. The length of inner courts shall be not less than 3 feet (914 mm) and not less than 150% of the horizontal dimension of required window openings
Access shall be provided to the bottom of inner courts for cleaning purposes.
Inner courts more than two stories in height shall be provided with a horizontal air intake at the bottom with a cross-sectional area not less than 10 square feet (0.93 m2) and leading to a yard or public way. Air intakes shall be of fire-resistance rated construction and shall be open at both ends and unobstructed for their full size and length, except that grilles of noncombustible construction are permitted at both ends.
The bottom of every inner court shall be properly graded and drained to a public sewer or other approved drainage system complying with the Chicago Plumbing Code.
The building official may adopt rules for considering permanent and perpetual easements or restrictive declarations on adjoining lots as a means of creating spaces equivalent to courts or yards.

14B-12-1206 The provisions of Section 1206 of IBC are not adopted.

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

14B-12-1207 The provisions of Section 1207 of IBC are not adopted. The following language is adopted as Section 1207:

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

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

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

Kitchens shall have a clear passageway of not less than 3 feet (914 mm) between counter fronts and appliances or counter fronts and walls.

Exception: Within a dwelling unit having a net floor area not exceeding 700 square feet (65 m2) and not required to be an Accessible unit, Type A unit, Type B unit or Type C unit, a clear working space of not less than 30 inches (762 mm) shall be provided in front of kitchen counters and kitchen appliances.

Occupiable spaces and corridors shall have a ceiling height of not less than 7 feet 6 inches (2286 mm) above the finished floor.

Exceptions:
  1. Bathrooms, toilet rooms, kitchens, storage rooms, laundry rooms and spaces above and below a mezzanine shall have a ceiling height of not less than 7 feet (2134 mm) above the finished floor.
  2. Within a dwelling unit or sleeping unit in a Group R occupancy, habitable spaces and hallways shall have a ceiling height of not less than 7 feet (2134 mm) above the finished floor. Bathrooms, toilet rooms and laundry rooms shall have a ceiling height of not less than 6 feet 8 inches (2032 mm) above the finished floor.
  3. If any room in a building has a sloped ceiling, the prescribed ceiling height for the room is required in one-half the area thereof. Any portion of the room measuring less than 5 feet (1524 mm) from the finished floor to the ceiling shall not be included in any computation of the minimum area thereof.
  4. Lofts in accordance with Section 1207.5.
Any room with a furred ceiling or projecting elements, such as beams, girders, ducts or pipes, shall be required to have the minimum ceiling height in three-quarters of the area thereof, and in no case shall the clearance below a furred ceiling or projecting element be less than 80 inches (2032 mm) above the finished floor.
Exception: Within a dwelling unit or sleeping unit in a Group R occupancy, the clearance below a furred ceiling or projecting element shall not be less than 6 feet 4 inches (1931 mm).

1207.3 Room Area

ILLUSTRATION
Every dwelling unit shall have at least one room that shall have not less than 120 square feet (11.2 m2) of net floor area. Dining spaces shall have a net floor area of not less than 60 square feet (5.6 m2). Other habitable spaces shall have a net floor area of not less than 70 square feet (6.5 m2). Where a single room is provided for cooking, dining and living purposes, it shall have a net floor area of not less than 180 square feet (16.7 m2).

Lofts used for sleeping or living space within a dwelling unit or sleeping unit in a Group R occupancy, and not containing or providing exclusive means of access to any plumbing fixture, shall conform to the minimum requirements of this code except as follows:

  1. The loft shall have a floor area of not less than 35 square feet (3.25 m2) and not more than 150 square feet (13.9 m2).
  2. The loft shall not be less than 5 feet (1524 mm) in any horizontal dimension.
  3. A portion of every loft must have a ceiling height of at least 5 feet (1524 mm), measured from the finished floor to the finished ceiling. Portions of a loft with a sloped ceiling measuring less than 3 feet (914 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required or maximum permitted area of the loft.
  4. The loft shall be accessed by one of the following means, which shall count as the means of egress:

    1. 4.1. A stairway complying with Section 1011.
    2. 4.2. A stairway with a clear width of not less than 20 inches (508 mm), with risers not less than 7 inches (178 mm) and not more than 10 inches (254 mm) in height and a tread depth equal to 20 inches (508 mm) minus four-thirds of the riser height and with a handrail on one side. The stairway shall have headroom of at least 6 feet 2 inches (1880 mm). Where the ceiling height of the loft is less than 6 feet 2 inches (1880 mm) at the location where the stairway meets the loft, the top of the stairway shall be a landing platform, not less than 20 inches (508 mm) in length and width, located not more than 18 inches (457 mm) vertically below the finished floor of the loft.
    3. 4.3. A permanent ladder with a rung width of not less than 12 inches (305 mm) and 10-inch (254 mm) to 14-inch (356 mm) spacing between rungs installed at an incline between 70 to 80 degrees from horizontal. Ladders shall be capable of supporting a 300-pound (136 kg) load on any rung. Rung spacing shall be uniform within 3/8 inch (9.5 mm).
    4. 4.4. An alternating tread device complying with Section 1011.14.
    5. 4.5. A ship's ladder with a clear width of 20 inches (508 mm) complying with Section 1011.15.
  5. Guards shall be provided at the open side of lofts. Loft guards shall be not less than 36 inches (914 mm) in height or one-half of the clear height to the ceiling, whichever is less.

    Exception: Lofts with guardrails that meet the requirements of the Consumer Products Safety Commission for bunk beds.

  6. The floor level of the loft shall be at least 30 inches (762 mm) and no more than 9 feet (2743 mm) above the main floor level of the unit.
Lofts shall not be allowed within Accessible units and Type A units. Within Type B units, lofts shall not contain the primary living or sleeping space, and all other spaces within the unit shall be on an accessible route.

14B-12-1208 The provisions of Section 1208 of IBC are adopted by reference with the following modification:

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

Crawl spaces shall be provided with not less than one access opening that shall be not less than 24 inches by 24 inches (610 mm by 610 mm).
Access to mechanical appliances installed in under-floor areas, in attic spaces and on roofs or elevated structures shall be in accordance with the Chicago Mechanical Code.

14B-12-1209 The provisions of Section 1209 of IBC are adopted by reference with the following modifications:

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

Amended Coun. J. 10-7-20, p. 21791. 

The number and type of plumbing fixtures provided in any occupancy shall comply with the Chicago Plumbing Code.
Walls, floors and partitions in toilet and bathrooms shall comply with Sections 1209.2.1 through 1209.2.4.
In other than dwelling units, toilet, bathing and shower room floor finish materials shall have an easily-cleaned, nonabsorbent surface. The intersections of such floors with walls shall have an easily-cleaned, nonabsorbent vertical base that extends upward onto the walls not less than 4 inches (102 mm).

Walls and partitions within 2 feet (610 mm) of service sinks, urinals and water closets shall have an easily-cleaned, nonabsorbent surface, to a height of not less than 4 feet (1219 mm) above the floor, and except for structural elements, the materials used in such walls shall be of a type that is not adversely affected by moisture.

Exception: This section does not apply to the following buildings and spaces:

  1. Dwelling units and sleeping units.
  2. Toilet rooms that are not accessible to the public and that have not more than one water closet.

Accessories such as grab bars, towel bars, paper dispensers and soap dishes, provided on or within walls, shall be installed and sealed to protect structural elements from moisture.

Shower compartments and walls above bathtubs with installed shower heads shall be finished with an easily-cleaned, nonabsorbent surface to a height not less than 72 inches (1829 mm) above the drain inlet.
Built-in tubs with showers shall have waterproof joints between the tub and adjacent wall.
Privacy at water closets, urinals and bathing areas shall be provided in accordance with the Chicago Plumbing Code.

Each water closet utilized by the public or employees shall occupy a separate compartment with walls or partitions and a door enclosing the fixtures to ensure privacy.

Exceptions:

  1. Water closet compartments shall not be required in a single-occupant toilet room with a lockable door.
  2. Toilet rooms located in child day care facilities and containing two or more water closets shall be permitted to have one water closet without an enclosing compartment.
  3. This provision is not applicable to toilet areas located within Group I-3 occupancy housing areas.

Each urinal utilized by the public or employees shall occupy a separate area with walls or partitions to provide privacy. The walls or partitions shall begin at a height not more than 12 inches (305 mm) from and extend not less than 60 inches (1524 mm) above the finished floor surface. The walls or partitions shall extend from the wall surface at each side of the urinal not less than 18 inches (457 mm) or to a point not less than 6 inches (152 mm) beyond the outermost front lip of the urinal measured from the finished backwall surface, whichever is greater.

Exceptions:

  1. Urinal partitions shall not be required in a single-occupant or family or assisted-use toilet room with a lockable door.
  2. Toilet rooms located in child day care facilities and containing two or more urinals shall be permitted to have one urinal without partitions.

14B-12-1210 The following language is adopted as a new Section 1210:

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

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

Buildings containing rooms and spaces in which people live, sleep or work, or in which feed, food or foodstuffs are stored, prepared, processed, served or sold, shall be constructed in accordance with the provisions of this section.
Ventilation openings in exterior walls located less than 2 feet (610 mm) above the adjacent ground level shall be covered for their entire height and width with perforated sheet metal plates not less than 0.070 inch (1.8 mm) thick, expanded sheet metal plates not less than 0.047 inch (1.2 mm) thick, cast-iron grills or grating, extruded aluminum load-bearing vents, hardware cloth of 0.035 inch (0.89 mm) wire or heavier, or other approved material providing equivalent protection against the entry of rodents. The openings therein shall not exceed 1/4 inch (6.4 mm).
When closed, the maximum clearance between any exterior window, window jambs and sills, where the window sill is located less than 2 feet (610 mm) above the adjacent ground level shall be not greater than 3/8 inch (9.5 mm).
Annular spaces around pipes, electric cables, conduits and similar openings in exterior walls shall be protected against the passage of rodents by closing such openings with cement mortar, concrete masonry or noncorrosive metal.
When closed, the maximum clearance between any exterior door, door jambs and sills shall be not greater than 3/8 inch (9.5 mm).

14B-12-1211 The following language is adopted as a new Section 1211:

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

Every exterior door, operable window and other outside opening used to provide ventilation for habitable spaces, food preparation areas, food service areas, or areas where products to be included or utilized in food for human consumption are processed, manufactured, packed or stored shall be supplied with tightly fitting screens of minimum 16 mesh per inch (16 mesh per 25 mm). Every screen door provided for insect control shall be self-closing.

Exceptions:

  1. Insect screens shall not be required where other effective means of insect protection, such as air curtains or insect repellant fans are provided.
  2. Insect screens shall not be required for openings more than 50 feet (15.2 m) above the ground unless the building official determines that unusual insect prevalence exists at the premises.

14B-12-1212 The following language is adopted as a new Section 1212:

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

Building entrances and each dwelling unit in buildings containing more than one Group I-1, R-2, R-3, R-4 or R-5 dwelling unit shall be provided with security devices in accordance with Section 403 of the Chicago Minimum Requirements for Existing Buildings.
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