{"id":"us-wa","slug":"washington","name":"Washington","license":"CC-BY-4.0","placeNode":"/places/us-wa.json","construction":{"reviewStatus":"coming-soon","applications":[],"localApplications":[{"id":"kcc-wui-roof-kittitas-county","title":"Kittitas County WUI and locally printed construction application","instrumentId":"kcc-14-12-20-10","placeId":"us-wa-kittitas","status":"active","geographicScope":"unincorporated-county","scopeSummary":"Kittitas County declares every unincorporated area WUI and applies its current local WUI amendments there; Chapter 14.12 separately sets Class C, B, or A roof-covering floors by hazard class, but its classification system limits the hazard-specific Class A and B paths to areas outside a fire department. Parcel jurisdiction, that fire-department boundary, the current hazard map and class, water and defensible-space inputs, project trigger, exact classified configuration, effective date, and official review remain open.","adoptedOn":"2021-03-02T00:00:00.000Z","requirementIds":["kcc-14-12-high-extreme-class-a-roof-covering","kcc-14-12-moderate-class-b-roof-covering","kcc-14-12-low-general-class-c-roof-covering","kcc-20-10-ir1-one-hour-exterior-wall","kcc-20-10-ir1-noncombustible-exterior-wall","kcc-20-10-ir1-ir2-one-hour-appendage","kcc-20-10-ir1-ir2-noncombustible-appendage","kcc-20-10-table-503-nc-exterior-wall"],"requirementCoverage":"partial","requirementCoverageSummary":"Eight locally printed product-semantic paths are normalized: three Chapter 14.12 roof-covering floors, two IR1 exterior-wall alternatives, two shared IR1/IR2 appendage alternatives, and the Table 503.1 one-hour/noncombustible wall addition. This is not a full IWUIC crosswalk: the County code references the most current adopted IWUIC edition without printing an edition number, and its heavy-timber, log, FRT-wood, ignition-resistant-treatment, vent-location, sprinkler, water, and defensible-space paths are not reduced to product matches.","requirementScopes":[{"requirementId":"kcc-14-12-high-extreme-class-a-roof-covering","scopeKeys":["outside-fire-department","high-fire-hazard","extreme-fire-hazard"],"scopeSummary":"The Class A floor applies only after the County assigns high or extreme hazard, only in an area outside a fire department; a written Fire Marshal alternative may control a specific project.","sourceSections":["14.12.010","14.12.030"]},{"requirementId":"kcc-14-12-moderate-class-b-roof-covering","scopeKeys":["outside-fire-department","moderate-fire-hazard"],"scopeSummary":"The Class B-or-better floor applies only after the County assigns moderate hazard, only in an area outside a fire department; a written Fire Marshal alternative may control a specific project.","sourceSections":["14.12.010","14.12.040"]},{"requirementId":"kcc-14-12-low-general-class-c-roof-covering","scopeKeys":["unincorporated-county","low-fire-hazard"],"scopeSummary":"Class C is the general unincorporated-County floor and the stated low-hazard floor; the Class B and Class A rows replace it where the official hazard class is higher.","sourceSections":["14.12.020","14.12.050"]},{"requirementId":"kcc-20-10-ir1-one-hour-exterior-wall","scopeKeys":["ir1"],"scopeSummary":"This exterior-wall alternative applies only when the official Table 503.1 result is IR1; a documented product duration does not establish the complete exterior-side wall.","sourceSections":["504.5(1)"]},{"requirementId":"kcc-20-10-ir1-noncombustible-exterior-wall","scopeKeys":["ir1"],"scopeSummary":"This exterior-wall alternative applies only when the official Table 503.1 result is IR1; a documented noncombustible product does not establish the complete exterior wall.","sourceSections":["504.5(2)"]},{"requirementId":"kcc-20-10-ir1-ir2-one-hour-appendage","scopeKeys":["ir1","ir2","attached-to-habitable-space"],"scopeSummary":"Sections 504.7 and 505.7 apply this path to attached unenclosed accessory structures and projections such as decks after the official result is IR1 or IR2.","sourceSections":["504.7","505.7"]},{"requirementId":"kcc-20-10-ir1-ir2-noncombustible-appendage","scopeKeys":["ir1","ir2","attached-to-habitable-space"],"scopeSummary":"Sections 504.7 and 505.7 apply this path to attached unenclosed accessory structures and projections such as decks after the official result is IR1 or IR2.","sourceSections":["504.7","505.7"]},{"requirementId":"kcc-20-10-table-503-nc-exterior-wall","scopeKeys":["table-503-1-nc-result"],"scopeSummary":"This is an addition to the IR1 outcomes marked N.C. in the local routing table; the official hazard, water, and defensible-space inputs must yield that result first.","sourceSections":["Table 503.1"]}],"map":{"status":"declared-authority-wide","summary":"The current Fire Marshal page confirms that all unincorporated Kittitas County is WUI. Title 20 still requires the most-current County map and official water and defensible-space inputs before Table 503.1 yields the project result; this record does not attach the archived 2013 map as if it were current.","source":{"title":"Kittitas County Fire Marshal Wildland Urban Interface page","url":"https://www.co.kittitas.wa.us/cds/firemarshal/wildland-urban-interface.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},"projectTriggers":[{"summary":"Chapter 14.12 applies its roof-covering floors to new buildings, additions regardless of size, and existing buildings when 25 percent or more of the roof is reroofed.","sourceSections":["14.12.020","14.12.090"],"source":{"title":"Kittitas County Code Chapter 14.12","url":"https://ecode360.com/45415485","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"summary":"Title 20 Section 501.1 exempts specified noncommercial accessory structures no larger than 200 square feet and agricultural buildings when each is at least 50 feet from a building containing habitable space; the code official decides the project result.","sourceSections":["501.1"],"source":{"title":"Kittitas County Code Chapter 20.10","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"summary":"Title 20 Table 503.1 combines official hazard severity, water-supply conformity, and defensible-space conformity and can yield IR1, IR2, IR3, IR1 plus noncombustible one-hour exterior walls, or not permitted; a roof-covering match does not choose among those outcomes.","sourceSections":["Table 503.1"],"source":{"title":"Kittitas County Code Chapter 20.10","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}}],"localAmendments":[{"kind":"modification","section":"302.1","summary":"The County declares every unincorporated area WUI while retaining a most-current County map and official classification inputs for the project-specific construction result.","source":{"title":"Kittitas County Code Chapter 20.10","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"kind":"modification","section":"Table 503.1","summary":"The local routing table preserves distinct IR1, IR2, IR3, IR1 plus noncombustible one-hour wall, and not-permitted outcomes based on hazard, water, and defensible-space facts.","source":{"title":"Kittitas County Code Chapter 20.10","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"kind":"addition","section":"14.12.020–14.12.050","summary":"The separate construction chapter sets a general Class C roof-covering floor, Class B in moderate hazard, and Class A in high and extreme hazard, subject to stated written Fire Marshal alternatives and more restrictive law.","source":{"title":"Kittitas County Code Chapter 14.12","url":"https://ecode360.com/45415485","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}}],"supportingSources":[{"title":"Kittitas County current building codes and permitting page","url":"https://www.co.kittitas.wa.us/cds/building/default.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"},{"title":"Kittitas County Ordinance 2021-003","url":"https://www.co.kittitas.wa.us/uploads/bocc/ordinances/2021-003-ordinance.pdf","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z","documentDate":"2021-03-02T00:00:00.000Z"},{"title":"Kittitas County table of ordinances and resolutions","url":"https://www.co.kittitas.wa.us/boc/countycode/titleTOR.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}],"unresolvedPredicates":["official-boundary","fire-department-boundary","official-hazard-map","official-hazard-class","project-type","effective-date","official-confirmation"],"source":{"title":"Kittitas County Code Title 20, Chapter 20.10 Wildland Urban Interface Code","url":"https://www.co.kittitas.wa.us/boc/countycode/title20.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"},"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-27T00:00:00.000Z"}],"requirements":[],"sources":[{"title":"RCW 19.27.560 International Wildland Urban Interface Code","url":"https://app.leg.wa.gov/rcw/default.aspx?cite=19.27.560","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"},{"title":"WAC 51-55-003 International Wildland-Urban Interface Code","url":"https://app.leg.wa.gov/wac/default.aspx?cite=51-55-003","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"},{"title":"WAC 51-55-008 Implementation","url":"https://app.leg.wa.gov/wac/default.aspx?cite=51-55-008","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"},{"title":"RCW 43.30.580 Wildfire hazard and risk maps","url":"https://app.leg.wa.gov/rcw/default.aspx?cite=43.30.580","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"},{"title":"Wildfire Hazard and Risk Mapping","url":"https://dnr.wa.gov/wildfire-resources/wildfire-prevention/wildfire-hazard-and-risk-mapping","publisher":"Washington Department of Natural Resources","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}]},"localAuthorities":[{"id":"us-wa-kittitas","name":"Kittitas County","kind":"county","recordType":"local-code","topics":["construction","fire-access"],"page":"/places/washington/kittitas-county/"}],"claims":{"exact":[{"id":"guide:covering-vs-assembly:6","anchor":"local-us-wa-covering-vs-assembly-6","place":"Washington RCW 19.27.560 (maps not complete)","placeId":"us-wa","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"When DNR maps are complete, RCW 19.27.560(1)(a)(i) requires a Class A roof assembly tested to ASTM E108 or UL 790 on the statewide path. Existing roofs replaced or 50 percent replaced in twelve months take the new-construction covering. That statute is not in force as a statewide construction book while WAC 51-55 is reserved. A city may adopt IWUIC locally now.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"covering-vs-assembly","title":"Covering versus assembly","url":"/guides/covering-vs-assembly/"},"source":{"title":"RCW 19.27.560 International Wildland Urban Interface Code","url":"https://app.leg.wa.gov/rcw/default.aspx?cite=19.27.560","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z"}},{"id":"guide:east-of-the-cascades-is-a-different-state:4","anchor":"local-us-wa-east-of-the-cascades-is-a-different-state-4","place":"Puget Sound Basin (King County DNRP-hosted 2011 list)","placeId":"us-wa","scopeKind":"place","scopeMode":"descendants","scopeRef":null,"claim":"Opened PDF title: Fire-resistant Landscape Plants for the Puget Sound Basin. Footer: Firewise Plants for the Puget Sound Basin 2011. Selecting native plants suited to the characteristics of your site. Native plants require little or no watering and can be less susceptible to stress. Characteristics of fire-resistant plants: little seasonal accumulation of dead vegetation; open, loose branching habit; woody plants are non-resinous. Resinous trees such as cedar, spruce, and pine can increase the intensity and rate of spread of wildfire. Special care in placement, spacing and pruning are needed if trees of this type are retained within 30 feet of the home. Trees listed include maple, alder, birch, flowering dogwood, Oregon ash, crab-apple, cottonwood/aspen, cherry, oak, willow. Shrubs include vine maple, kinnikinnick, salal, oceanspray, Oregon grape, Pacific ninebark. This is a west-side native list. It is not the June 2021 eastern Washington compilation.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"east-of-the-cascades-is-a-different-state","title":"East of the Cascades is a different state","url":"/guides/east-of-the-cascades-is-a-different-state/"},"source":{"title":"Firewise Plants for the Puget Sound Basin 2011","url":"https://your.kingcounty.gov/dnrp/library/water-and-land/forestry/forestfire/FirewisePlantsPugetSoundBasin-2011.pdf","publisher":"King County (DNRP library host)","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2011-01-01T00:00:00.000Z"}},{"id":"guide:east-of-the-cascades-is-a-different-state:3","anchor":"local-us-wa-east-of-the-cascades-is-a-different-state-3","place":"Eastern Washington (WA DNR / WSU Master Gardener compilation, June 2021)","placeId":"us-wa","scopeKind":"place","scopeMode":"descendants","scopeRef":null,"claim":"Published June 2021. Purpose: plant species to use in Eastern Washington counties to lessen losses from wildland fires. Historically wildfire would burn an area every 6 to 30 years in Eastern Washington, a frequent fire interval since the retreat of the Continental glaciers more than 10,000 years ago. Wildland fire is an essential part of the environment. There is no absolutely fire-proof vegetation. All plants will burn if the conditions are right. FIRE-RESISTANT DOES NOT MEAN FIREPROOF. Even fire-resistant plants will burn if not well maintained. Maintenance and landscape management have a greater impact on whether a plant ignites than does the species. Junipers, pines, spruces, and firs are resinous and highly flammable. More homes burn due to firebrands than due to any other cause; firebrands can be transported more than a mile. Do not use wood or bark mulches within 3 to 5 feet of the house. Landscape Zone 1: 5 feet out with one-hour flame-resistant siding, 10 feet without; nothing flammable (trees, brush, tall grass, leaves, firewood piles, bark mulch). LZ2 5–30 feet: avoid evergreens that ignite easily; 10–15 feet between tree crowns; trees 30 feet from the house at mature size. LZ3 30–100 feet (farther downhill on >20% slopes); native conifers and shrubs acceptable if well spaced; 10–15 feet between crowns. Removal works best for sagebrush. Acknowledgments: this publication lists only fire-resistant plants that are in other Firewise documents. Master Gardener volunteers did not perform any empirical research, but only compiled existing information about plants that are likely to thrive in Eastern Washington. Al Murphy, project coordinator and author. WSU Chelan/Douglas County Master Gardener volunteers. Washington State DNR staff.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"east-of-the-cascades-is-a-different-state","title":"East of the Cascades is a different state","url":"/guides/east-of-the-cascades-is-a-different-state/"},"source":{"title":"Fire-Resistant Plants for Eastern Washington","url":"https://dnr.wa.gov/publications/rp_fire_resistant_plants_guide_easternwa.pdf","publisher":"Washington State Department of Natural Resources","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2021-06-01T00:00:00.000Z"}},{"id":"guide:fire-apparatus-access:1","anchor":"local-us-wa-fire-apparatus-access-1","place":"Washington RCW 19.27.560 (maps not complete)","placeId":"us-wa","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"When maps are complete, RCW 19.27.560(1)(b) requires a driveway where any portion of a first-story exterior wall is more than 150 feet from a fire apparatus access road. Driveways over 300 feet need turnarounds. Driveways over 500 feet and less than 20 feet wide need turnouts and turnarounds. The city or county defines turnout and turnaround. That statewide path is not in force while WAC 51-55 is reserved. A local IWUIC adoption may use those numbers now.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"fire-apparatus-access","title":"Fire apparatus access on the lot","url":"/guides/fire-apparatus-access/"},"source":{"title":"RCW 19.27.560 International Wildland Urban Interface Code","url":"https://app.leg.wa.gov/rcw/default.aspx?cite=19.27.560","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z"}},{"id":"guide:fire-resistant-is-not-fireproof:1","anchor":"local-national-fire-resistant-is-not-fireproof-1","place":"OSU Extension PNW 590 (October 2023)","placeId":null,"placeIds":["us-id","us-or","us-wa"],"scopeKind":"place","scopeMode":"descendants","scopeRef":null,"claim":"The publication prints Fire-resistant does not mean fireproof. Even fire-resistant plants will burn if not well maintained. Be sure to keep all of your landscape plants healthy with appropriate watering, proper pruning, etc. Fire-resistant plants are those that do not readily ignite from a flame or other ignition sources. These plants can be damaged or even killed by fire. However, they tend to produce fewer embers. Taking HIZ actions does not ensure that a home or community will survive a wildfire.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"fire-resistant-is-not-fireproof","title":"Fire-resistant is not fireproof","url":"/guides/fire-resistant-is-not-fireproof/"},"source":{"title":"Fire-resistant Plants for Home Landscapes (PNW 590)","url":"https://extension.oregonstate.edu/catalog/pub/pnw-590-fire-resistant-plants-home-landscapes","publisher":"Oregon State University Extension Service (with WSU Extension and University of Idaho Extension)","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2023-10-01T00:00:00.000Z"}},{"id":"guide:how-oregon-got-the-deepest-page:1","anchor":"local-national-how-oregon-got-the-deepest-page-1","place":"OSU Extension PNW 590 (revised October 2023)","placeId":null,"placeIds":["us-id","us-or","us-wa"],"scopeKind":"place","scopeMode":"descendants","scopeRef":null,"claim":"Joint Oregon / Washington / Idaho Extension publication (Detweiler, Fitzgerald, Cowan, Bell, Stokely). Figure 1 zones from 0–5, 5–30, and 30–100 feet are based on the National Fire Protection Association’s Home Ignition Zone. The plant list was developed from existing scientific literature on plant flammability. The research on plant flammability, especially for ornamental plants, is limited. Most listed plants require some irrigation to survive summer months, particularly in drier regions. At the time of printing, none of the plants listed were on state noxious weed lists in Oregon, Washington, or Idaho. Always check with local Extension or a nursery.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"how-oregon-got-the-deepest-page","title":"How Oregon got a deep plant page","url":"/guides/how-oregon-got-the-deepest-page/"},"source":{"title":"Fire-resistant Plants for Home Landscapes (PNW 590)","url":"https://extension.oregonstate.edu/catalog/pub/pnw-590-fire-resistant-plants-home-landscapes","publisher":"Oregon State University Extension Service / Washington State University Extension / University of Idaho Extension","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2023-10-01T00:00:00.000Z"}},{"id":"guide:how-wui-is-mapped:3","anchor":"local-us-wa-how-wui-is-mapped-3","place":"Washington DNR hazard maps (not complete)","placeId":"us-wa","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"RCW 43.30.580 directs DNR to establish and maintain a statewide wildfire hazard map (low, moderate, high, very high) and a county base-level risk map, public on DNR’s website. RCW 19.27.560 turns on statewide Class 1 construction only upon completion of those maps. DNR’s mapping page describes a project with draft maps and listening sessions. Draft maps are not a construction book.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"how-wui-is-mapped","title":"How the WUI is mapped","url":"/guides/how-wui-is-mapped/"},"source":{"title":"Wildfire Hazard and Risk Mapping","url":"https://dnr.wa.gov/wildfire-resources/wildfire-prevention/wildfire-hazard-and-risk-mapping","publisher":"Washington Department of Natural Resources","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z"}},{"id":"standard:iwuic:6","anchor":"local-us-wa-iwuic-6","place":"Washington statewide (maps not complete)","placeId":"us-wa","scopeKind":"place","scopeMode":"exact","scopeRef":"iwuic","claim":"WAC 51-55-003 is reserved. RCW 19.27.560 adopts IWUIC Chapter 1 plus named Class 1 roof, wall, deck, and driveway rules only upon completion of DNR’s statewide wildfire hazard map and county risk maps. Counties may adopt IWUIC locally now. Draft DNR maps are not unmodified IWUIC and not a permit.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"standard","id":"iwuic","title":"International Wildland-Urban Interface Code","url":"/standards/iwuic/"},"source":{"title":"RCW 19.27.560 International Wildland Urban Interface Code","url":"https://app.leg.wa.gov/rcw/default.aspx?cite=19.27.560","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z"}},{"id":"guide:two-by-lumber-deck-exception:2","anchor":"local-us-wa-two-by-lumber-deck-exception-2","place":"Washington RCW 19.27.560 (maps not complete)","placeId":"us-wa","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"When maps are complete, RCW 19.27.560(1)(a)(iii) requires unenclosed accessory structures and projections such as decks to be one-hour, heavy timber, noncombustible, exterior FRT wood, or ignition-resistant. A first-floor unenclosed structure of at least 2-inch nominal material with wire-mesh screening below is excepted from that list. That is not Oregon’s 200 square foot 2-inch lumber walking-surface exception. The statewide path is not in force while WAC 51-55 is reserved.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"two-by-lumber-deck-exception","title":"The 200 square foot 2-inch lumber deck exception","url":"/guides/two-by-lumber-deck-exception/"},"source":{"title":"RCW 19.27.560 International Wildland Urban Interface Code","url":"https://app.leg.wa.gov/rcw/default.aspx?cite=19.27.560","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z"}},{"id":"guide:washington-wui-code-status:1","anchor":"local-us-wa-washington-wui-code-status-1","place":"Washington statewide (maps not complete)","placeId":"us-wa","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"WAC 51-55-003 and 51-55-008 are reserved (WSR 26-07-075, filed 17 March 2026, effective 17 April 2026). The 2021 IWUIC chapter is not the live statewide construction book. RCW 19.27.560 still lets a city or county adopt IWUIC locally.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"washington-wui-code-status","title":"Washington WUI code status","url":"/guides/washington-wui-code-status/"},"source":{"title":"WAC 51-55-003 International Wildland-Urban Interface Code","url":"https://app.leg.wa.gov/wac/default.aspx?cite=51-55-003","publisher":"Washington State Legislature","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z"}}],"local":[{"id":"guide:covering-vs-assembly:7","anchor":"local-us-wa-kittitas-covering-vs-assembly-7","place":"Kittitas County roof coverings (KCC 14.12 and 20.10)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 14.12.020 requires at least a Class C roof covering on new buildings and 25 percent reroofs in unincorporated Kittitas County. 14.12.030 requires Class A in high and extreme fire hazard areas; 14.12.040 requires Class B in moderate areas. Those ratings cite IBC Chapter 1505 covering classes unless a more restrictive county standard applies. KCC 20.10 Table 503.1 still assigns IR1, IR2, or IR3 and does not reprint a local 504.2 roof-assembly amendment. Confirm the hazard class and current IWUIC edition with the building official.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"guide","id":"covering-vs-assembly","title":"Covering versus assembly","url":"/guides/covering-vs-assembly/"},"source":{"title":"Kittitas County Code Chapter 14.12 Fire Resistant/Retardant Standards for Roof Coverings","url":"https://ecode360.com/45415485","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}},{"id":"guide:fire-apparatus-access:2","anchor":"local-us-wa-kittitas-fire-apparatus-access-2","place":"Kittitas County IWUIC (unincorporated)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 does not adopt IWUIC 403.2.1 Dimensions, 403.2.2 Length, or 403.2.3 Service Limitations. Those sections point at KCC Titles 12 and 20. Confirm driveway width and length with Public Works and the fire code official.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"guide","id":"fire-apparatus-access","title":"Fire apparatus access on the lot","url":"/guides/fire-apparatus-access/"},"source":{"title":"Kittitas County Code Chapter 20.10 Wildland Urban Interface Code","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}},{"id":"guide:how-wui-is-mapped:14","anchor":"local-us-wa-kittitas-how-wui-is-mapped-14","place":"Kittitas County IWUIC (unincorporated)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 Section 302.1 designates all unincorporated areas of Kittitas County as WUI, identified on the current Kittitas County Wildland Urban Areas map. Statewide DNR maps are not this overlay.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"guide","id":"how-wui-is-mapped","title":"How the WUI is mapped","url":"/guides/how-wui-is-mapped/"},"source":{"title":"Kittitas County Code Chapter 20.10 Wildland Urban Interface Code","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}},{"id":"guide:ignition-resistant-vs-noncombustible:3","anchor":"local-us-wa-kittitas-ignition-resistant-vs-noncombustible-3","place":"Kittitas County IR1 exterior walls","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 Section 504.5 prints one-hour exterior-side construction, approved noncombustible material, heavy timber or log, exterior FRT wood, and locally described ignition-resistant material as separate IR1 wall paths. Table 503.1's N.C. result is different again—it requires both a one-hour wall and a noncombustible exterior surface. A product match does not choose the Table result or prove the complete wall.","asOf":"2026-08-27T00:00:00.000Z","object":{"kind":"guide","id":"ignition-resistant-vs-noncombustible","title":"Ignition-resistant versus noncombustible","url":"/guides/ignition-resistant-vs-noncombustible/"},"source":{"title":"Kittitas County Code Title 20, Section 504.5 and Table 503.1","url":"https://www.co.kittitas.wa.us/boc/countycode/title20.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"id":"standard:iwuic:5","anchor":"local-us-wa-kittitas-iwuic-5","place":"Kittitas County IWUIC (unincorporated)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":"iwuic","claim":"KCC 20.10 adopts the current IWUIC, with Appendix B and Appendix C. Section 302.1 designates all unincorporated areas as WUI. 501.1 requires construction in accordance with the IBC, IRC, and this code. WAC 51-55 remains reserved statewide.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"standard","id":"iwuic","title":"International Wildland-Urban Interface Code","url":"/standards/iwuic/"},"source":{"title":"Kittitas County Code Chapter 20.10 Wildland Urban Interface Code","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}},{"id":"guide:mesh-vs-listed-vents:5","anchor":"local-us-wa-kittitas-mesh-vs-listed-vents-5","place":"Kittitas County IWUIC IR1 vents (unincorporated)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 504.10.1 keeps attic ventilation openings out of soffits, eave overhangs, rafter-eave spaces, and other overhangs, except when openings are approved by Cal Fire, an independent laboratory such as UL, ANSI, or ICC-ES, or the code official under 105.2. Gable-end and dormer vents shall be at least 10 feet from lot lines. That is Kittitas’s IR1 amendment, not statewide WAC 51-55.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"guide","id":"mesh-vs-listed-vents","title":"Mesh versus listed vents","url":"/guides/mesh-vs-listed-vents/"},"source":{"title":"Kittitas County Code Chapter 20.10 Wildland Urban Interface Code","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}},{"id":"guide:sprinklers-13d-and-wildfire:7","anchor":"local-us-wa-kittitas-sprinklers-13d-and-wildfire-7","place":"Kittitas County Section 602 amendment","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 says Section 602 does not apply to building-permit applications submitted before 15 March 2018, but withholds that exception in mapped “IR 1 (No Site Assmt Allowed)” areas. That local sentence does not name NFPA 13D, resolve the current IWUIC edition, or decide whether a present project is in the mapped exception area.","asOf":"2026-08-27T00:00:00.000Z","object":{"kind":"guide","id":"sprinklers-13d-and-wildfire","title":"NFPA 13D sprinklers and wildfire","url":"/guides/sprinklers-13d-and-wildfire/"},"source":{"title":"Kittitas County Code Title 20, Section 602 amendment","url":"https://www.co.kittitas.wa.us/boc/countycode/title20.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"id":"guide:rural-water-supply:5","anchor":"local-us-wa-kittitas-rural-water-supply-5","place":"Kittitas County Table 503.1 water input","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 Section 404.2 leaves the acceptable distance to a water source with the fire code official. A man-made source needs the usable volume determined under 404.5, an approved hydrant, maintained water level, and official approval of its design, location, access, and maintenance. Table 503.1 then treats conformance with Section 404 as a separate input to the IR1, IR2, IR3, N.C., or not-permitted result. The printed County amendment does not supply one universal tank volume.","asOf":"2026-08-27T00:00:00.000Z","object":{"kind":"guide","id":"rural-water-supply","title":"Rural firefighting water when there is no hydrant","url":"/guides/rural-water-supply/"},"source":{"title":"Kittitas County Code Title 20, Sections 404.2 and Table 503.1","url":"https://www.co.kittitas.wa.us/boc/countycode/title20.aspx","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-27T00:00:00.000Z"}},{"id":"guide:two-by-lumber-deck-exception:3","anchor":"local-us-wa-kittitas-two-by-lumber-deck-exception-3","place":"Kittitas County IWUIC (unincorporated)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 504.7 requires unenclosed accessory structures attached to buildings with habitable spaces, and projections such as decks, to be one-hour, heavy timber, noncombustible, exterior FRT wood, or ignition-resistant per 503.2. The opened amendment does not name Oregon’s 200 square foot 2-inch lumber walking-surface exception. Confirm with the building official.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"guide","id":"two-by-lumber-deck-exception","title":"The 200 square foot 2-inch lumber deck exception","url":"/guides/two-by-lumber-deck-exception/"},"source":{"title":"Kittitas County Code Chapter 20.10 Wildland Urban Interface Code","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}},{"id":"guide:washington-wui-code-status:2","anchor":"local-us-wa-kittitas-washington-wui-code-status-2","place":"Kittitas County IWUIC (unincorporated)","placeId":"us-wa-kittitas","scopeKind":"place","scopeMode":"exact","scopeRef":null,"claim":"KCC 20.10 adopts the current IWUIC, with Appendix B and Appendix C. Section 302.1 designates all unincorporated areas as WUI. That is Kittitas’s book, not statewide WAC 51-55.","asOf":"2026-08-24T00:00:00.000Z","object":{"kind":"guide","id":"washington-wui-code-status","title":"Washington WUI code status","url":"/guides/washington-wui-code-status/"},"source":{"title":"Kittitas County Code Chapter 20.10 Wildland Urban Interface Code","url":"https://ecode360.com/45426639","publisher":"Kittitas County","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z"}}]},"placeFocusedGuides":[{"id":"east-of-the-cascades-is-a-different-state","title":"East of the Cascades is a different state","url":"/guides/east-of-the-cascades-is-a-different-state/"},{"id":"washington-wui-code-status","title":"Washington WUI code status","url":"/guides/washington-wui-code-status/"}],"findings":[],"plants":{"grain":"state","total":592,"nativeDocumented":0,"invasiveOrNoxiousFlagged":140,"fireResistant":386,"keepAway":31,"conflicts":21,"page":"/grow/washington/"},"fireEvidencePublicationScope":{"answerGrain":"typed-state-source","sourceCount":3}}