Municipal Code of Chicago § 14B-8-801 Scope.
14B-8-801 Scope.
The provisions of Section 801 of IBC are adopted by reference without modification.
INTERIOR FINISHES
Municipal Code of Chicago tit. 14B, ch. 14B-8
in effectMunicipal Code of Chicago § 14B-8-802 General.
14B-8-802 General.
The provisions of Section 802 of IBC are adopted by reference with the following modification:
1. Delete Section 802.4.
Municipal Code of Chicago § 14B-8-803 Wall and ceiling finishes.
14B-8-803 Wall and ceiling finishes.
The provisions of Section 803 of IBC are adopted by reference with the following modifications:
1. Revise Section 803.3 to read:
"803.3 Heavy timber exemption.
In buildings protected throughout by an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, exposed portions of structural elements complying with the requirements for heavy timber construction in Section 602.4 or Section 2304.11 shall not be subject to interior finish requirements except in interior exit stairways, interior exit ramps, and exit passageways."
2. Replace Table 803.13 as shown:
TABLE 803.13
INTERIOR WALL AND CEILING FINISH REQUIREMENTS BY OCCUPANCY k
GROUP | SPRINKLERED l | NONSPRINKLERED
Interior exit stairways and ramps, exit passageways and interior portions of the exit discharge a | Corridors and enclosure for exit access stairways and ramps | Rooms and enclosed spaces c | Interior exit stairways and ramps, exit passageways and interior portions of the exit discharge a | Corridors and enclosure for exit access stairways and ramps | Rooms and enclosed spaces c
GROUP | SPRINKLERED l | NONSPRINKLERED
Interior exit stairways and ramps, exit passageways and interior portions of the exit discharge a | Corridors and enclosure for exit access stairways and ramps | Rooms and enclosed spaces c | Interior exit stairways and ramps, exit passageways and interior portions of the exit discharge a | Corridors and enclosure for exit access stairways and ramps | Rooms and enclosed spaces c
A-1, A-2 | A | B | C | A | A | B e
A-3, A-4, A-5 | A | B | C | A | A | C
B, E, M, R-1 | A | C m | C | A | B | C
R-4 | B | C | C | A | B | B
F | A | C | C | A | C | C
H | A | B | C g | A | A | B
I-1 | A | C | C | A | B | B
I-2 | A | B | B h, i | A | A | A
I-3 | A | A j | C | A | A | B
I-4 | A | B | B h, i | A | A | B
R-2 | A | C | C | A | B | C
R-3, R-5 | C | C | C | C | C | C
S | A | C | C | A | B | C
U | No restrictions | No restrictions
For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 m 2.
a. Class C interior finish materials shall be permitted for wainscotting or paneling of not more than 1,000 square feet of applied surface area in the grade-level lobby where applied directly to a noncombustible base or over furring strips applied to a noncombustible base and fireblocked as required by Section 803.15.1.
b. [Reserved.]
c. Requirements for rooms and enclosed spaces shall be based on spaces enclosed by partitions. Where a fire-resistance rating is required for structural elements, the enclosing partitions shall extend from the floor to the ceiling. Partitions that do not comply with this shall be considered to be enclosing spaces and the rooms or spaces on both sides shall be considered to be one room or space. In determining the applicable requirements for rooms and enclosed spaces, the specific occupancy thereof shall be the governing factor regardless of the group classification of the building or structure.
d. [Reserved.]
e. Class C interior finish materials shall be permitted in places of assembly with an occupant load of 300 persons or less.
f. [Reserved.]
g. Class B material is required where the building exceeds two stories above grade plane.
h. Class C interior finish materials shall be permitted in administrative spaces.
i. Class C interior finish materials shall be permitted in rooms with a capacity of four persons or less.
j. Class B materials shall be permitted as wainscotting extending not more than 48 inches above the finished floor in corridors, exit access stairways and exit access ramps.
k. Finish materials as provided for in other sections of this code.
l. Applies when protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
m. Corridors in ambulatory care facilities shall be provided with Class A or B materials.
3. Revise Section 803.15.1 by replacing "1 3/4 inches (44 mm)" with "1 3/4 inches (44 mm) in depth."
4. Revise Section 803.15.1.1 by deleting "inorganic or."
(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 26)
Municipal Code of Chicago § 14B-8-804 Interior floor finish.
14B-8-804 Interior floor finish.
The provisions of Section 804 of IBC are adopted by reference with the following modification:
1. Revise Section 804.4.2 to read:
"804.4.2 Minimum critical radiant flux.
In all occupancies, interior floor finish and floor covering materials within enclosures for interior exit stairways, interior exit ramps, exit passageways, lobbies which are part of the exit discharge, corridors and rooms or spaces not separated from corridors by partitions extending from the floor to the underside of the ceiling shall withstand a minimum critical radiant flux. The minimum critical radiant flux shall be not less than Class I throughout Groups I-1, I-2, I-3 and R-4, not less than Class I within enclosures for interior exit stairways, interior exit ramps, exit passageways and lobbies which are part of the exit discharge in Groups A, B, E, F, H, I-4, M, R-1, R-2 and S, and not less than Class II in corridors and spaces not separated from corridors by partitions extending from the floor to the underside of the ceiling in Groups A, B, E, F, H, I-4, M, R-1, R-2 and S.
Exception: In areas other than within enclosures for interior exit stairways, interior exit ramps or exit passageways and lobbies which are part of the exit discharge, where a building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, Class II materials are permitted in any area where Class I materials are required and materials complying with DOC FF-1 "pill test" (CPSC 16 CFR Part 1630) or with ASTM D2859 are permitted in any area where Class II materials are required."
(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 27; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 12)
Municipal Code of Chicago § 14B-8-805 Combustible materials in Types I and II construction.
14B-8-805 Combustible materials in Types I and II construction.
The provisions of Section 805 of IBC are adopted by reference without modification.
Municipal Code of Chicago § 14B-8-806 Decorative materials and trim.
14B-8-806 Decorative materials and trim.
The provisions of Section 806 of IBC are adopted by reference with the following modifications:
1. Revise item 3 in Section 806.1 to read:
"3. Furnishings or other objects shall not be placed to obstruct the means of egress."
2. Revise item 4 in Section 806.1 to read:
"4. The permissible amount of decorative live vegetation and noncombustible decorative materials shall not be limited."
3. Revise the exceptions to Section 806.2 by deleting "approved."
4. Delete Section 806.3.
Municipal Code of Chicago § 14B-8-807 Insulation.
14B-8-807 Insulation.
The provisions of Section 807 of IBC are adopted by reference without modification.
Municipal Code of Chicago § 14B-8-808 Acoustical ceiling systems.
14B-8-808 Acoustical ceiling systems.
The provisions of Section 808 of IBC are adopted by reference without modification.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2663859Fetched: 10/24/2026