15.80.002 International codes – Adopted by reference.
Pursuant to RCW 35A.12.140, and as adopted and amended by the State Building Code Council in Chapter 51-50 WAC, the following codes of technical regulations are adopted by this reference as if fully set forth, subject to the modifications or amendments set forth in this chapter, and with the exception of those provisions of the codes set forth in this chapter; provided, that the building and planning director or building official at any time may adopt any subsequent or amended versions of the following codes without further action by the town council, such that the most current version of the regulations remains in effect:
A. The International Building Code, published by the International Code Council, is hereby adopted by reference with the exceptions noted in Chapter 51-50 WAC. Chapter 1 and Appendices E, F, H, I and J are included in the adoption of the International Building Code.
B. The International Residential Code as published by the International Code Council is hereby adopted by reference, with the exceptions noted in Chapter 51-51 WAC and with the following additions, deletions, and exceptions; provided, that Chapters 11 and 25 through 43 of this code are not adopted. Appendix F, Radon Control Methods, Appendix G, Swimming Pools, Spas and Hot Tubs, Appendix U, Dwelling Unit Fire Sprinkler Systems, and Appendix V, Fire Sprinklers, are included in adoption of the International Residential Code subject to the following exception for Appendices U and V:
Exception: Detached one-family dwellings with less than 5,000 square feet of livable space; provided, any new addition to an existing residential structure shall only be required to sprinkle the new area when the total livable space exceeds 5,000 square feet and the percentage of new area is 40 percent or more of the original square feet of livable space.
C. The 2021 Washington State Residential and Commercial Energy Code as published by the International Code Council is hereby adopted by reference with the exceptions noted in Chapter 51-52 WAC.
D. The International Mechanical Code as published by the International Code Council is hereby adopted by reference with the exceptions noted in Chapter 51-52 WAC.
E. The Uniform Plumbing Code, including Appendices A, B, and I, published by the International Association of Plumbing and Mechanical Officials, is hereby adopted by reference with the exceptions noted in Chapter 51-56 WAC.
F. The International Property Maintenance Code, published by the International Code Council, is hereby adopted by reference.
G. The International Existing Building Code, published by the International Code Council, is hereby adopted by reference.
H. The International Fuel Gas Code as published by the International Code Council is hereby adopted by reference with the exceptions noted in Chapter 51-52 WAC.
I. Minimum Design Requirements. The following climatic and geographic design criteria are adopted pursuant to Section R301.2 of the International Residential Code:
Table R301.2(1). Climactic and Geographic Design Criteria
Ground Snow Load:
30 psf
Wind Speed (mph):
120 – exposure B and C
Seismic Design Category:
D2
Subject to Damage from Weathering:
Moderate
Frost Line Depth:
18 inches
Termite:
Slight to Moderate
Decay:
Slight to Moderate
Winter Design Temperature:
26 degrees Fahrenheit
Ice Shield Underlayment Requirement:
No
Flood Hazards:
1995 Flood FIRM
Air Freezing Index:
250
Mean Annual Temperature:
45 degrees Fahrenheit
Basic Wind Speed:
Assigned value is 120 with 3-second gust (Vult)
[Ord. 636 § 1, 2024.]