Building Codes
The City of Centralia follows the following building codes (as amended in 18.04.010 of the Centralia Municipal Code):
- 2018 Edition of the National Electric Code
- 2018 International Fire Code as amended
- 2018 International Mechanical Code
- 2018 International Property Maintenance Code
- 2018 Uniform Plumbing Code
- 2018 Washington State Energy and Ventilation and Indoor Air Quality Codes
- The International Building Code, 2018 Edition, (as amended by Chapter 51-50 WAC, including the Appendix Chapters E and International Code Council (ICC)/American National Standards Institute (ANSI) A117.1-209, G, Flood Resistant Construction; I, Patio Covers; and J, Grading, and the International Residential Code, 2018 Edition, as amended by Chapter 51-51 WAC, including Appendix Chapters H, Patio Covers)
Design Criteria
- Air freezing index: 172
- Decay: Moderate to severe
- Frost line depth: 12 inches
- Ground snow load: 25 pounds per square foot
- Mean annual temp: 52 degrees
- Seismic design category: D1
- Subject to damage from weathering: Moderate
- Termite: Slight to moderate
- Wind speed: 85 miles per hour sustained, 3-second gust up to 110 miles per hour
- Winter design temp: 25 degrees