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National Codes 2021 International Building Code (IBC) 2021 International Existing Building Code (IEBC) 2017 Accessible & Usable Buildings & Facilities (ICC/ANSI A117.1) 2021 International Residential Code (IRC) 2021 International Mechanical Code (IMC) 2021 International Fuel Gas Code (IFGC) 2017 Liquefied Petroleum Gas Code (NFPA 58) 2021 National Fuel Gas Code (NFPA 54) 2021 International Fire Code (IFC) 2021 Wildland-Urban Interface Code 2021 Uniform Plumbing Code (UPC) 2023 National Electrical Code 2021 International Energy Conservation Code with WA ST Amendments City of Redmond Design Requirements Design Wind Speed 110 mph - PER IRC 301.2 (see Table IBC 1609.3 for commercial) Ground Snow Load 15 psf (snow drift per ASCE 7-10) Rain on Snow Surcharge 5 psf added to flat roofs per (ASCE 7-10;7.10) Seismic Design Category D (D2 Residential) Rainfall 1”/hr (UPC Table D101.1) Frost Line Depth 12” Soil Bearing Capacity 1500 psf unless a Geotechnical report is provided (IBC Table 1806.2) Washington State Amendments WAC 51-50 Washington State Building Code (IBC) WAC 51-51 Washington State Building Code (IRC) WAC 51-52 Washington State Mechanical Code (IMC) WAC 51-54A Washington State Fire Code (IFC) WAC 51-56 Washington State Plumbing Code & Standards (UPC) WAC 51-11C & 51-11R State Building Code adoption and amendment of the 2021 edition of the International Energy Conservation code, Commercial/Residential WAC 296-46B Electrical Safety Standards, Administration, and Installation Redmond Local Amendments and Regulations Redmond Municipal Code Title 15 Buildings and Construction Chapter 15.06 - Fire Code Chapter 15.08 - Building Code Chapter 15.10 - Property Maintenance Code - repealed by Ord. 2729 Chapter 15.12 - Electrical Code Chapter 15.14 - Mechanical Code Chapter 15.16 - Plumbing Code Chapter 15.18 - Energy Code Chapter 15.22 - Moving Buildings Chapter 15.24 - Clearing, Grading, and Storm Water Management Chapter 15.26 - Wildland Urban-Interface Code Chapter 15.30 - Construction and Demolition Debris Recycling and Reuse Redmond Zoning Code Redmond Fire Department Standards Codes and Design Requirements redmond.gov/BuildingPermits