Updated : 04/22/2024

Overview

Yakima County, Washington, adopted the 2018 International Residential Code, including Appendices F, Q, U, H, and J, with amendments. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.06.010-13.06.110 (amendments). Yakima County, Washington, adopted the 2018 International Building Code, including Appendices C, E, G, I, and J, with amendments. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.05.010-13.05.180 (amendments). Yakima County, Washington, adopted the 2018 International Existing Building Code. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.13.010-13.13.030 (amendments). 

Note that the above codes are the current effective codes until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. 

Helpful resources for Yakima County, Washington include the following.

• PLRB, Ordinance and Law Coverage Discussion for Washington

Residential Building Code

Washington adopted a statewide mandatory residential code that will control; however, local governments are free to make laws more strict (with some limitations).See PLRB, Washington Building Codes for more information on state level codes.

Yakima County adopted the 2018 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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2018 Washington State Residential Code (2018 IRC)(Yakima County, WA Municipal Code)

...Adoption not found...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Yakima County ? Yes
Comments:

The adoption of the residential code included an amendment stating that ice barrier underlayment is required at the eaves.

Climatic and Geographic Design Criteria: Table R301.2(1)

Ground Snow Load: Case Study

Wind Speed: 110 ULT and 85 ASD

Seismic Design Category: C, D0, and D1 are present.

Weathering: Severe

Frost Line Depth: 24"

Termite: Slight to Moderate

Winter Design Temp: 2º F

Ice Shield Underlayment Requirement: Yes

Flood Hazard: See g (a) and (b). 

Air Freezing Index: 1,000- 2,000. 

Mean Annual Temp: 50º F

Yakima, WA, Muni. Code § 13.06.075 (amendments). 

Comments

Yakima County, Washington, adopted the 2018 International Residential Code, including Appendices F, Q, U, H, and J, with amendments. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.06.010-13.06.110 (amendments). Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. 

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.

Yakima, Washington, adopted Appendix J regarding existing buildings.

Yakima County, Washington, adopted the 2018 International Existing Building Code. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.13.010-13.13.030 (amendments). Note that Yakima County specifically adopted the 2018 edition and is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. 

Commercial Building Code

Yakima County adopted the 2018 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.

Auto Search - beta:

2018 Washington State Building Code (2018 IBC)(Yakima County, WA Municipal Code)

...Adoption not found...

Comments

Yakima County, Washington, adopted the 2018 International Building Code, including Appendices C, E, G, I, and J, with amendments. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.05.010-13.05.180 (amendments). Note that the above codes are the current effective codes until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. 

Existing Buildings

Yakima County, Washington, adopted the 2018 International Existing Building Code. Yakima County, WA, Muni. Code § 13.02.010 (adoption) and §§ 13.13.010-13.13.030 (amendments). Note that the above codes are the current effective codes until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. 

Other Building Codes