Alton, Illinois Building Codes

Updated : 04/22/2024

Overview

Alton, Illinois, adopted the 2015 International Residential Code (IRC), with amendments. Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments). Alton, Illinois, adopted the 2015 International Building Code (IBC), with amendments. Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments). Alton, Illinois, adopted the 2015 International Existing Building Code (IEBC). Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments). 

Helpful resources for Alton, 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.

Alton 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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2015 IRC(Alton, IL 9-1-1: OFFICIAL BUILDING CODE:)

...2015 edition  ICC International Residential Code  2015 edition...

2018 IRC(Alton, IL 9-1-1: OFFICIAL BUILDING CODE:)

...Adoption: There is hereby adopted as the Building Code of the City, the following codes: (Ord. 7259, 6-22-2011) ICC International Building Code 2015 edition ICC International Existing Building Code 2015 edition ICC International Fire Code 2015 edition Appendix B, C, D of the International Fire Code 2015 edition Appendix I of the International Fire Code 2015 edition Appendix K of the International Fire Code 2015 edition ICC International Mechanical Code 2015 edition ICC International Property Maintenance Code 2015 edition ICC International Residential Code 2015 edition National Electrical Code 2011 edition Life Safety Code (as published by the NFPA) 2000 edition Illinois Plumbing Code 2014 edition (Ord. 7594, 11-8-2017) B....

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Alton ? Undetermined
Comments:

No amendments to Table R301.2(1) were found in the municipal code or city website; Therefore, it is unclear if ice barrier underlayment is required.

 

Comments

Alton, Illinois, adopted the 2015 International Residential Code (IRC), with amendments. Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments).

Section R905.2.1 entitled Sheathing Requirements is hereby amended to read as follows:

Section R905.2.1 Sheathing Requirements: Asphalt or Fiberglass shingles shall be fastened to solidly sheathed decking. Sheathing used as roof decking shall have an American Plywood Association grading of APA exposure 1, 32/16 span rating, or equivalent.

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.

Alton, Illinois, adopted the 2015 International Existing Building Code (IEBC). Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments).

Commercial Building Code

Alton 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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See Amlegal(Alton, IL Municipal Code)

...Adoption not found...

2012 IBC(Alton, IL 9-1-1: OFFICIAL BUILDING CODE:)

...9-1-1: OFFICIAL building code:A. Adoption: There is hereby adopted as the building code of the City, the following codes: (Ord. 7259, 6-22-2011)...

Comments

Alton, Illinois, adopted the 2015 International Building Code (IBC), with amendments. Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments).

Existing Buildings

Alton, Illinois, adopted the 2015 International Existing Building Code (IEBC). Alton, IL, Muni. Code § 9-1-1 (adoption) and § 9-1-3 (amendments).

Other Building Codes

Alton, Illinois, adopted the 2015 International Fire Code (IFC), including appendix B, C, D, I, K. Alton, IL, Muni. Code § 9-1-1 (adoption). 

Alton, Illinois, adopted the 2015 International Mechanical Code (IMC). Alton, IL, Muni. Code § 9-1-1 (adoption).

Alton, Illinois, adopted the 2015 International Property Maintenance Code (IPMC). Alton, IL, Muni. Code § 9-1-1 (adoption).

Alton, Illinois, adopted the 2011 National Electrical Code. Alton, IL, Muni. Code § 9-1-1 (adoption). 

Alton, Illinois, adopted the 2014 Illinois State Plumbing Code. Alton, IL, Muni. Code  § 9-1-1 (adoption).

Alton, Illinois, adopted the 2000 Life Safety Code (NFPA 101). Alton, IL, Muni. Code § 9-1-1 (adoption).