Union Gap, Washington Building Codes

Updated : 04/22/2024

Overview

Union Gap, Washington, adopted the 2018 Washington State Residential Code, including Appendices F, H, and Q, with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.020 (amendments). Union Gap, Washington, adopted the 2018 Washington State Building Code. including Appendices E, G, H, I, and J, with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.010 (amendments). Union Gap, Washington, adopted the 2018 Washington State Existing Building Code with amendments. Note that the Union Gap municipal code specifically names the 2018 edition as the current edition in effect. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.100 (amendments).

Also, note that the above codes are the current Washington Building Codes and are the effective codes until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes

Helpful resources for Union Gap, Washington include the following.

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.

Union Gap 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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2021 Washington State Residential Code (2021 IRC)(Union Gap, WA 14.04.010 - Adoption of referenced codes.)

...Building Code, the building code, the Washington State Building Code, or this code shall mean the 2018 Washington State Building Code as referred to herein. (a) The 2018 Washington State Building Code, as published by the International Code Council,...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Union Gap ? Yes
Comments:

The Union Gap municipal code included an amendment stating that ice barrier underlayment is required at the eaves. Union Gap, WA, Muni. Code § 14.06.030 (design standards). 

All structures in the city of Union Gap shall be subject to the following design standards:

Ground Snow Load = 30 lbs/ft 2

Wind Speed (Gust) = 85 mph

Seismic Design Category = C

Weathering = Severe

Decay = None to slight

Frost line depth = 24″

Termites = Slight to Moderate

Winter Design Temp = 11º

Ice Shield Underlay = Yes

Flood Hazards = As mapped by FEMA

Air Freeze Index = 1000

Mean Annual Temp = 50º

Union Gap, WA, Muni. Code § 14.06.030 (design standards). 

Comments

Union Gap, Washington, adopted the 2018 Washington State Residential Code, including Appendices F, H, and Q, with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.020 (amendments). 

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.

No adoption of Appendix J was found in the municipal code. 

Union Gap, Washington, adopted the 2018 Washington State Existing Building Code with amendments. Note that the Union Gap municipal code specifically names the 2018 edition as the current edition in effect. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.100 (amendments) 

Commercial Building Code

Union Gap 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.

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2021 Washington State Building Code (2021 IBC)(Union Gap, WA Municipal Code)

...Adoption not found...

Comments

Union Gap, Washington, adopted the 2018 Washington State Building Code. including Appendices E, G, H, I, and J, with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.010 (amendments). 

Existing Buildings

Union Gap, Washington, adopted the 2018 Washington State Existing Building Code with amendments. Note that the Union Gap municipal code specifically names the 2018 edition as the current edition in effect. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.100 (amendments) 

Other Building Codes

Union Gap, Washington, adopted the 2018 Washington State Mechanical Code, including Appendix A, with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.030 (amendments). 

Union Gap, Washington, adopted the 2018 Uniform Plumbing Code, including Appendices A, B, and I, with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.040 (amendments). 

Union Gap, Washington, adopted 2009 ICC/ANSI A117.1, Accessible and Usable Buildings, and Facilities. Union Gap, WA, Muni. Code § 14.04.010 (adoption).

Union Gap, Washington, adopted the 2018 International Fuel Gas Code with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.050 (amendments).

Union Gap, Washington, adopted the 2015 International Property Maintenance Code with amendments. Note that the municipal code shows the 2015 IPMC is adopted instead of the 2018 edition adopted in the Washington State Building Codes. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and § 14.05.080 (amendments). 

Union Gap, Washington, adopted the 2018 Washington State Energy Code (Commercial and Residential provisions) with amendments. Union Gap, WA, Muni. Code § 14.04.010 (adoption) and §§ 14.05.060-14.05.070 (amendments). 

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