{"format":"cadcraft-library-item","format_version":1,"uuid":"b6974ca1-8136-4faa-ac07-1990cb724609","version":1,"name":"Seattle: 2021 Seattle Residential Code (IRC 2021 with Washington and Seattle amendments)","kind":"regulation","category":"regulations/building","description":"The Washington state pack for this city — Seattle amendments to the checked rules were not researched; design criteria from the city's table (Seattle Department of Construction and Inspections; Seattle Residential Code [S] Table R301.2). Design criteria from www.seattle.gov (2021). Entered from the cited source on 2026-10-27 (research confidence: high); not yet reviewed by a professional.","maker":"","model":"","ifc":{"class":"IfcControl","predefined":"NOTDEFINED"},"plan":{"layers":[],"entities":[]},"body":null,"params":{},"regulation":{"format":"cadcraft-regulation-pack","version":1,"id":"us-wa-seattle","name":"Seattle: 2021 Seattle Residential Code (IRC 2021 with Washington and Seattle amendments)","jurisdiction":{"country":"US","level":"city","region":"US-WA","name":"Seattle"},"base":"us-wa","edition":"2021 Seattle Residential Code (IRC 2021…","in_force":null,"review":{"state":"draft","note":"The Washington state pack for this city — Seattle amendments to the checked rules were not researched; design criteria from the city's table (Seattle Department of Construction and Inspections; Seattle Residential Code [S] Table R301.2). Design criteria from www.seattle.gov (2021). Entered from the cited source on 2026-10-27 (research confidence: high); not yet reviewed by a professional."},"authority":"adopted-law","source":{"name":"Seattle Department of Construction and Inspections, Seattle Residential Code [S] Table R301.2","url":"https://www.seattle.gov/documents/Departments/SDCI/Codes/SeattleResidentialCode/2021SRCChapter3.pdf","date":"2025-06-18","checked":"2026-10-27"},"maker":null,"price":null,"criteria":{"ground_snow_load":{"text":"20 psf (a uniform 25 psf roof snow load may be used)","value":20,"unit":"psf"},"wind_speed":{"text":"98 mph (ultimate)","value":98,"unit":"mph"},"wind_topographic":{"text":"Yes"},"special_wind_region":{"text":"No"},"windborne_debris":{"text":"No"},"seismic_category":{"text":"D2"},"weathering":{"text":"Moderate"},"frost_depth":{"text":"12 in","value":304.8,"unit":"mm"},"termite":{"text":"None to slight"},"ice_barrier":{"text":"No"},"flood_hazards":{"text":"NFIP 1989; FIS 1995-05-16"},"air_freezing_index":{"text":"250"},"mean_annual_temp":{"text":"52.8 °F"}},"tables":[],"rules":[]},"source_attrs":{},"license":{"id":"CC0-1.0","holder":"CadCraft","attribution":"“Seattle: 2021 Seattle Residential Code (IRC 2021 with Washington and Seattle amendments)” by CadCraft (https://www.seattle.gov/documents/Departments/SDCI/Codes/SeattleResidentialCode/2021SRCChapter3.pdf), CC0 (https://creativecommons.org/publicdomain/zero/1.0/)","url":"https://creativecommons.org/publicdomain/zero/1.0/"},"provenance":{"library":"librarycraft","item":"b6974ca1-8136-4faa-ac07-1990cb724609","version":1,"sha256":"aefcfc1b784afef597ccc523b5fd2e39ea669c151b88a1759d3cc4fb0e728a37","source_file":"us-wa-seattle.json","source_sha256":"c1f256cf471f9ef756ff448cd18461c4eaae09ffc6891fe4abae618c4cfa73f3","published_at":"2026-10-27T02:07:28Z"}}