Westmont, Illinois Building Codes

Updated : 04/22/2024

Overview

Westmont, IL has adopted the 2012 International Codes, with amendments, including the 2012 IRC and IBC. Westmont, IL Muni. Codes § 18-61 (adoptions) and § 18-62 (amendments).

Helpful resources for Westmont, 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.

Westmont adopted the 2012 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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2021 IRC(Westmont, IL Sec. 18-61. - Adoption of code.)

...Building Code, without appendices, prepared and published by the International Code Council, Inc. • 2021 International Residential Code, without appendices, prepared and published by the International Code Council, Inc. • 2021 International...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Westmont ? Yes
Citation: § 18.62
Municipal Code https://library.municode.com/il/westmont/codes/code_of_ordinances?nodeId=COOR_CH18BUBURE_ARTIIIBUCO_S18-62DEADDEINCH
Comments:

Table R301.2 (1) Climatic and Geographic Design Criteria . Insert the following information in the table:

Ground Snow Load = 25

Wind Design

Speed (MPH) = 90(40)

Topographic effects = No

Seismic Design Category = B

Subject to Damage From

Weathering = Severe

Frost Line Depth = 42"

Termite = Mod to Heavy

Winter Design Temp = 10 degrees F

Ice Barrier Underlayment Required = Yes

Flood Hazards – 12/16/04

Air Freezing Index = 1700

Mean Annual Temp = 50 degrees F

Government Officials
Last Name First Name Title E-mail Phone Note
Vitell Jason Building Division Manager jvitell@westmont.il.gov 630/981-6255

Comments

Westmont, IL has adopted the 2012 IRC excluding appendices E, I, L and P.

Section R313.2 One-and two-family Dwellings Automatic Fire Systems. This requirement is optional until January 1, 2016. However, contractors and builders shall offer residential sprinklers as an option to the buyer/potential homeowner. If the buyer/potential homeowner declines the installation of sprinklers, they shall complete a form, provided by the Westmont Fire Department, and submit the fully completed form prior to the issuance of a building permit.

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.

Westmont, IL has adopted the 2012 IRC including appendix J. Westmont, IL Muni. Code § 18-62.

Commercial Building Code

Westmont adopted the 2012 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(Westmont, IL Sec. 18-61. - Adoption of code.)

...There is hereby adopted by reference as is fully set out herein certain codes as follows: • 2021 International Building Code, without appendices, prepared and published by the International Code Council, Inc. • 2021 International Residential Code, without appendices...

Comments

Westmont, IL has adopted the 2012 IBC excluding appendices B and K.

Existing Buildings

Westmont, IL has adopted the 2012 IEBC. Westmont, IL Muni. Code § 18-61.

Other Building Codes

Westmont, IL also adopted the following codes:

Illinois State Plumbing Code. Westmont, IL Muni. Code § 18-121.

2011 National Electric Code. Westmont, IL Muni. Code § 18-188.

Safety Code for Elevators and Escalators and Performance Based Safety Code for Elevators and Escalator. Westmont, IL Muni. Code § 18-801.

Safety Code for Existing Elevators and Escalators. Westmont, IL Muni. Code § 18-801.

2012 International Fire Code. Westmont, IL Muni. Code § 42-186.

2012 Life Safety Code (NFPA 101). Westmont, IL Muni. Code § 42-186.

2012 International Mechanical Code. Westmont, IL Muni. Code § 18-61.

2012 International Fuel Gas Code. Westmont, IL Muni. Code § 18-61.

2012 International Property Maintenance Code. Westmont, IL Muni. Code § 18-61.

2012 International Swimming Pool and Spa Code. Westmont, IL Muni. Code § 18-61.

2012 International Energy Conservation Code. Westmont, IL Muni. Code § 18-6

Illinois Accessibility Code. Westmont, IL Muni. Code § 18-61.

Illinois Radon Resistant Construction Act. Westmont, IL Muni. Code § 18-61.