Updated : 04/22/2024

Overview

Issaquah, Washington, adopted the 2018 International Residential Code, including Appendix F, Q, T, U, and V. See PLRB, Washington Building Codes, Wash. Admin. Code §51-51 (State Codes), and Issaquah, WA, Muni. Code §16.04.020 (adoption and amendments). Issaquah, Washington, adopted the 2018 International Building Code, including Appendix E. See PLRB, Washington Building Codes, Wash. Admin. Code §51-50 (State Codes), and Issaquah, WA, Muni. Code §16.04.015 (adoption and amendments). Issaquah, Washington, adopted the 2018 International Existing Building Code, including Appendix A. See PLRB, Washington Building Codes, Wash. Admin. Code §51-50, and Issaquah, WA, Muni. Code §16.04.030 (adoption and 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.

Helpful resources for Issaquah, 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.

Issaquah 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)(City of Issaquah, WA Municipal Code)

...Adoption not found...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Issaquah ? No
Comments:

The adoption of the residential code included an amendment stating that ice barrier underlayment is not required at the eaves.

International Residential Code Table R301.2(1) is hereby amended to read as follows:

TABLE R301.2(1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

ROOF SNOW LOAD (psf)a	WIND DESIGN				SEISMIC DESIGN CATEGORY
	Speedb (mph)	Topographic effectsb	Special wind region	Windborne debris zone
25	110	Yes	No	No	D2

SUBJECT TO DAMAGE FROM			WINTER DESIGN TEMP (°F)	ICE BARRIER UNDERLAYMENT REQUIRED	FLOOD HAZARDe	AIR FREEZING INDEX	MEAN ANNUAL TEMP
Weatheringc	Frost line depthd	Termite
Moderate	18"	Slight to Moderate	22	No	Seee	170	51

Issaquah, WA, Muni. Code §16.04.020 (IRC amendments). 

Comments

Issaquah, Washington, adopted the 2018 International Residential Code, including Appendix F, Q, T, U, and V. See PLRB, Washington Building Codes, Wash. Admin. Code §51-51 (State Codes), and Issaquah, WA, Muni. Code §16.04.020 (adoption and 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.

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

Issaquah, Washington, adopted the 2018 International Existing Building Code, including Appendix A. See PLRB, Washington Building Codes, Wash. Admin. Code §51-50, and Issaquah, WA, Muni. Code §16.04.030 (adoption and 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.

Commercial Building Code

Issaquah 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)(City of Issaquah, WA Municipal Code)

...Adoption not found...

Comments

Issaquah, Washington, adopted the 2018 International Building Code, including Appendix E. See PLRB, Washington Building Codes, Wash. Admin. Code §51-50 (State Codes), and Issaquah, WA, Muni. Code §16.04.015 (adoption and 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

Issaquah, Washington, adopted the 2018 International Existing Building Code, including Appendix A. See PLRB, Washington Building Codes, Wash. Admin. Code §51-50, and Issaquah, WA, Muni. Code §16.04.030 (adoption and 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.

Other Building Codes