Updated : 04/22/2024

Overview

DeWitt, IA has adopted the 2015 International Codes, with amendments, including the 2015 IRC and IBC. DeWitt, IA Muni. Codes § 155.02 (adoptions) and § 155.03 (amendments).

Helpful resources for DeWitt, Iowa include the following.

• PLRB, Ordinance and Law Coverage Discussion for Iowa

Residential Building Code

Iowa adopted a model state residential code but it is not in force unless adopted locally.See PLRB, Iowa Building Codes for more information on state level codes.

DeWitt 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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Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for DeWitt ? Yes
Citation: § 155.03
Municipal Code https://dewittia.govoffice3.com/vertical/sites/%7B5B1808CB-967B-4B4D-9F3C-428D701BC5B6%7D/uploads/CHAPTER_155_Building_Code.pdf#page=2
Comments:

Section 301.2-1 insert the following: TABLE R301.2(1) CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

GROUND SNOW LOAD: Same

WIND DESIGN:  Speed (mph) – 115, Topographic effects – Yes, Special Wind Region – No, Windborne debris zone – No

SEISMIC DESIGN CATEGORY: A

SUBJECT TO DAMAGE FROM: Weathering – Severe, Frost Line Depth – 42", Termite – Moderate/Heavy

WINTER DESIGN TEMP: -4 

ICE BARRIER UNDERLAYMENT REQUIRED: Yes

FLOOD HAZARDS: FIRM

AIR FREEZING INDEX: 2000

MEAN ANNUAL TEMP: 50.5°F

Government Officials

Comments

Delete: 313.1.1 in its entirety and replace with: An automatic residential fire sprinkler system shall be installed in townhouses and other multi-unit residential complexes with 5 or more units. DeWitt, IA Muni. Code § 155.03.

Commercial Building Code

DeWitt 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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Existing Buildings

DeWitt, IA has adopted the 2015 IEBC. DeWitt, IA Muni. Code § 155.02 (adoption).

Other Building Codes