Lemont, Illinois Building Codes

Updated : 04/22/2024

Overview

Lemont, IL has adopted the 2006 International Codes, with amendments, including the 2006 IRC (for One and Two Family Dwellings) and IBC. Lemont, IL Muni. Codes §15.06.010 (IRC adoption), § 15.06.020 (IRC amendments), § 15.04.010 (IBC adoption) and § 15.04.020 (IBC amendments). 

Helpful resources for Lemont, 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.

Lemont adopted the 2006 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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2006 IRC(Lemont, IL 15.06.010. - Adopted.)

...There is adopted by reference, as if fully set outin this chapter, that certain code known as the International Residential Code for One- and Two-Family Dwellings, 2006 edition, including Appendix Chapters A through K, M and O inclusive, as published by the International Code Council, Inc., together with the additions, insertions, deletions...

Drip Edge

Drip Edge: no

Ice Barrier

Are ice barriers required for Lemont ? Undetermined
Comments:

Section R905.2.7.1 Ice barrier. Delete in its entirety and add the following new Section R905.2.7.1:

Section R905.2.7.1 Ice barrier. An ice barrier that consists of a self-adhering polymer modified bitumen sheet shall be used in lieu of the normal underlayment and extend from the lowest edges of all roof surfaces to a point at least 24 inches (610 mm) inside the exterior wall line of the building.

Exception: Detached accessory structures that contain no conditioned floor area.

TABLE R301.2(1) 

CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

Roof Snow Load Wind Speed (mph) Seismic Design Category Subject to Damage from Winter 
Design 
Temp
Flood 
Hazards
Weathering Frost Line Depth Termite Decay
                 
30 90 C Severe 42″ Moderate to Heavy Slight to Moderate -2 Cook County 
Nov. 6, 2002
Government Officials
Last Name First Name Title E-mail Phone Note
Ostapchuk Joe Chief Building Inspector jostapchuk@lemont.il.us 630/243-2703

Comments

Lemont, IL has adopted the 2006 IRC including appendices A, B, C, D, E, F, G, H, I, J, K, M and O.

 

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.

Lemont, IL has adopted the 2006 IRC including appendix J. Lemont, IL Muni. Code § 15.06.010.

Commercial Building Code

Lemont adopted the 2006 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 Muni. Code(Lemont, IL Municipal Code)

...Adoption not found...

Comments

Lemont, IL has adopted the 2006 IBC including appendices B, C, D, E, F, and J.

Existing Buildings

Lemont, IL did not adopt the IEBC, therefore Chapter 34 of the IBC would apply.

Other Building Codes

Lemont, IL also adopted the following codes:

2006 International Property Maintenance Code. Lemont, IL Muni. Code § 15.08.010.

2005 National Electrical Code (NFPA 70). Lemont, IL Muni. Code § 15.10.010.

2014 Illinois Plumbing Code. Lemont, IL Muni. Code § 15.12.010. See link to Lemont, IL website for edition update from 2004 to 2014.

2006 International Mechanical Code. Lemont, IL Muni. Code § 15.14.010.

2006 International Fuel Gas Code. Lemont, IL Muni. Code § 15.16.010.

2015 International Energy Conservation Code. Lemont, IL Muni. Code § 15.18.010. See link to Lemont, IL website for edition update from 2012 to 2015.

2006 International Fire Code. Lemont, IL Muni. Code § 15.20.010.