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Rock Falls, Illinois Building Codes

Updated : 04/22/2024

Overview

Rock Falls, IL has adopted the 2015 International Codes, with amendments, including the 2015 IRC and IBC. Rock Falls, IL Muni. Codes § 6-126 (IRC adoption and amendments) and § 6-77 (IBC adoptions and amendments). 

Helpful resources for Rock Falls, Illinois include the following.

Residential Building Code

Illinois has yet to adopt a statewide residential code. Local laws will control.See PLRB, Illinois Building Codes for more information on state level codes.

Rock Falls adopted the 2015 IRC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the model code here.

You can find information about amendments to the model code here.

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See Muni. Code(Rock Falls, IL Sec. 6-126. - Adoption.)

...(a) There is hereby adopted as the residential code of the city, for purposes of regulating and governing the construction, alteration, movement, enlargement, replacement, repair, equipment, location, removal and demolition of detached one- and two-family dwellings and multiple single-family dwellings...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Rock Falls ? Yes
Citation: § 6-126
Municipal Code https://library.municode.com/il/rock_falls/codes/code_of_ordinances?nodeId=MUNICIPAL_CODE_CH6BUCO_ARTIIIBUCO_DIV3RECO_S6-126AD
Comments:

TABLE R301.2(1) CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

GROUND 
SNOW 
LOAD 
WIND DESIGN SEISMIC 
DESIGN 
CATE- 
GORY f 
SUBJECT DAMAGE FROM WINTER 
DESIGN 
TEMP e 
ICE BARRIER
UNDER- 
LAYMENT 
RE- 
QUIRED h 
FLOOD 
HA- 
ZARD g 
AIR 
FREEZING 
INDEX i 
MEAN 
ANNUAL 
TEMP j 
Speed d(mph) Topographic Effects k Special wind Region l Wind-borne debris zonem Weatheringa Frost line Depth b Termite c
                           
30 115 NO NO NO A SEVERE 42" MOD/ 
HEAVY 
-4 DEG F YES SEE 
LOCAL 
SEE 
TABLE 
SEE 
TABLE 
Government Officials
Last Name First Name Title E-mail Phone Note
Searing Mark Building Inspector msearing@rockfalls61071.com 815/622-1108

Comments

Rock Falls, IL has adopted the 2015 IRC including appendices E, F, G, H, J, and M.   

R313.1 Townhouse automatic fire sprinkler systems. An automatic residential fire sprinkler system shall be installed in townhouses.

Exceptions: 1.An automatic residential fire sprinkler system shall not be required where additions or alterations are made to existing townhouses that do not have an automatic residential fire sprinkler system installed, unless the installation of automatic fire sprinklers is required by local municipal ordinance or ordinance of the local fire protection district.

R313.1.1 Design and Installation. Automatic residential fire systems for townhouses shall be redesigned and installed in accordance with the current edition of the Illinois Plumbing Code and NFPA 13D.

R313.1.2 Other Code Requirements. All structures built without automatic fire sprinkler systems shall comply with all code requirements of the International Residential Code for non-sprinklered construction.

R313.2 One and two family dwellings automatic fire systems. An automatic residential fire sprinkler system shall not be required to be installed in one- and two-family dwellings, including additions and alterations to such dwellings.

R313.2.1 Design and Installation. Automatic residential fire sprinkler systems for one- and two-family dwellings shall be designed and installed in accordance with the current edition of the Illinois Plumbing Code and NFPA 13 D.

R313.2.2 Other Code Requirements, All structures built without automatic fire sprinkler systems shall comply with all code requirements of the International Residential Code for non-sprinklered construction.

Existing Buildings

Existing buildings, meaning buildings that were built in accordance to code at the time of construction, typically merit extra consideration in a current updated code.

Rock Falls, IL has adopted the 2015 IRC including appendix J. Rock Falls, Il. Muni. Code § 6-126

Commercial Building Code

Rock Falls adopted the 2015 IBC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the code here.You can find information about amendments to the model code here.

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2021 IBC(Rock Falls, IL Sec. 6-77. - Adoption.)

...therefor, that certain document entitled "International Building Code, 2021 Edition" (referred to herein as the "2021 IBC") as published by the International Code Council. Each and all of the regulations, provisions, penalties, conditions and terms of said International Building Code, including appendices F, G and I thereto and the 2021 Errata...

Comments

Rock Falls, IL has adopted the 2015 IBC including appendices F, G, and I.

Existing Buildings

Rock Falls, IL has adopted the 2015 IEBC. Rock Falls, IL Muni. Code § 6-106.

Other Building Codes

Rock Falls, IL also adopted the following codes:

Illinois Accessibility Code. Rock Falls, IL Muni. Code § 6-250.

Illinois State Plumbing Code. Rock Falls, IL Muni. Code § 6-285.

2014 National Electric Code (NFPA 70). Rock Falls, IL Muni. Code § 6-308.

2015 International Mechanical Code. Rock Falls, IL Muni. Code § 6-339.

2015 International Property Maintenance Code. Rock Falls, IL Muni. Code § 6-369.

2012 International Energy Conservation Code. Rock Falls, IL Muni. Code § 6-397.

2015 International Fuel Gas Code. Rock Falls, IL Muni. Code § 6-425.

2015 International Fire Code. Rock Falls, IL Muni. Code § 10-110.