{"id":"iwuic-2024-class-3-class-b-roof-assembly","license":"CC-BY-4.0","data":{"title":"2024 IWUIC Class 3 Class B roof-assembly path","shortName":"IWUIC Class 3 Class B roof","summary":"The unamended 2024 IWUIC model code specifies a Class B-or-better tested roof assembly for Class 3 ignition-resistant construction.","framing":"This is a model-code path, not a claim of local adoption. A documented roof assembly can match the minimum rating and test; the alternative approved noncombustible covering and all deck, underlayment, profile-space, and amendment checks remain separate.","kind":"code","instrumentId":"iwuic-2024","jurisdiction":"Jurisdictions adopting unamended 2024 IWUIC Chapter 5","appliesToCategories":["roofing"],"quotedText":"not less than a Class B rating when tested in accordance with ASTM E108 or UL 790","source":{"title":"2024 International Wildland-Urban Interface Code, Section 506.2","url":"https://codes.iccsafe.org/content/IWUIC2024P1/chapter-5-special-building-construction-regulations","publisher":"International Code Council","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2023-08-01T00:00:00.000Z"},"constraints":[{"attribute":"assemblyRole","op":"eq","value":"roof-assembly"},{"attribute":"fireRating","op":"in","value":["class-a","class-b"]},{"attribute":"testStandard","op":"in","value":["astm-e108","ul-790"]}],"relatedStandards":["iwuic","astm-e108-ul-790"],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-25T00:00:00.000Z"},"applications":[{"id":"iwuic-2024-clark-county","title":"Clark County 2024 IWUIC application","instrumentId":"iwuic-2024","placeId":"us-nv-clark","status":"active","geographicScope":"unincorporated-county","scopeSummary":"Clark County applies its 2024 IWUIC through the County Fire Department's unincorporated service jurisdiction; official boundary, WUI map, assigned IR class, project, and code-official checks remain open.","adoptedOn":"2025-12-02T00:00:00.000Z","effectiveOn":"2026-01-01T00:00:00.000Z","requirementIds":["iwuic-2024-class-1-2-20-minute-exterior-door","iwuic-2024-class-1-2-class-a-roof-assembly","iwuic-2024-class-1-2-multilayered-glazing","iwuic-2024-class-1-2-noncombustible-deck","iwuic-2024-class-1-2-noncombustible-exterior-door","iwuic-2024-class-1-2-noncombustible-exterior-wall","iwuic-2024-class-1-2-solid-core-exterior-door","iwuic-2024-class-1-noncombustible-eave","iwuic-2024-class-1-wall-base-protection","iwuic-2024-class-2-solid-eave-enclosure","iwuic-2024-class-3-class-b-roof-assembly","iwuic-2024-noncombustible-gutters","iwuic-2024-roof-profile-closure","iwuic-2024-roof-valley-flashing","iwuic-2024-vent-mesh"],"requirementCoverage":"complete","requirementCoverageSummary":"All 15 normalized model material rows were reviewed against Ordinance 5320; this is complete only for that model crosswalk, not full-code normalization or a finding that every class row applies to one project.","requirementScopes":[{"requirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This exterior-door path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This Class A roof path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.2","505.2"]},{"requirementId":"iwuic-2024-class-1-2-multilayered-glazing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This multilayered-glazing path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.8","505.8"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-deck","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible appendage path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.7","505.7"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-door path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-wall path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.5","505.5"]},{"requirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This solid-core exterior-door path applies only when the County assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-noncombustible-eave","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This eave path applies only when the County assigns IR1 construction.","sourceSections":["503.2.1","504.3"]},{"requirementId":"iwuic-2024-class-1-wall-base-protection","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This wall-base path applies only when the County assigns IR1 construction.","sourceSections":["504.5.1"]},{"requirementId":"iwuic-2024-class-2-solid-eave-enclosure","scopeKeys":["ignition-resistant-class-2"],"scopeSummary":"This solid eave-enclosure path applies only when the County assigns IR2 construction.","sourceSections":["505.3"]},{"requirementId":"iwuic-2024-class-3-class-b-roof-assembly","scopeKeys":["ignition-resistant-class-3"],"scopeSummary":"This Class B roof path applies only when the County assigns IR3 construction.","sourceSections":["506.2"]},{"requirementId":"iwuic-2024-noncombustible-gutters","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This gutter-and-downspout path applies after the County assigns IR1, IR2, or IR3 construction.","sourceSections":["504.4","505.4","506.4"]},{"requirementId":"iwuic-2024-roof-profile-closure","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This roof-profile closure applies after the County assigns IR1, IR2, or IR3 construction.","sourceSections":["504.2","505.2","506.2"]},{"requirementId":"iwuic-2024-roof-valley-flashing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This valley-flashing path applies after the County assigns IR1, IR2, or IR3 construction.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"requirementId":"iwuic-2024-vent-mesh","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This vent-mesh path applies after the County assigns IR1, IR2, or IR3 construction.","sourceSections":["504.10.2","505.10.2","506.5"]}],"requirementCrosswalk":[{"modelRequirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 exterior-door atom.","sourceSections":["13.08.060","504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 Class A roof atom.","sourceSections":["13.08.060","504.2","505.2"]},{"modelRequirementId":"iwuic-2024-class-1-2-multilayered-glazing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 multilayered-glazing atom.","sourceSections":["13.08.060","504.8","505.8"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-deck","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 noncombustible-appendage atom.","sourceSections":["13.08.060","504.7","505.7"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 noncombustible-door atom.","sourceSections":["13.08.060","504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 noncombustible-wall atom.","sourceSections":["13.08.060","504.5","505.5"]},{"modelRequirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 solid-core-door atom.","sourceSections":["13.08.060","504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-noncombustible-eave","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 noncombustible-eave atom.","sourceSections":["13.08.060","503.2.1","504.3"]},{"modelRequirementId":"iwuic-2024-class-1-wall-base-protection","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 wall-base atom.","sourceSections":["13.08.060","504.5.1"]},{"modelRequirementId":"iwuic-2024-class-2-solid-eave-enclosure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 solid-eave atom.","sourceSections":["13.08.060","505.3"]},{"modelRequirementId":"iwuic-2024-class-3-class-b-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 Class B roof atom.","sourceSections":["13.08.060","506.2"]},{"modelRequirementId":"iwuic-2024-noncombustible-gutters","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 noncombustible-gutter atom.","sourceSections":["13.08.060","504.4","505.4","506.4"]},{"modelRequirementId":"iwuic-2024-roof-profile-closure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 roof-profile atom.","sourceSections":["13.08.060","504.2","505.2","506.2"]},{"modelRequirementId":"iwuic-2024-roof-valley-flashing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 valley-flashing atom.","sourceSections":["13.08.060","504.2.1","505.2.1","506.2.1"]},{"modelRequirementId":"iwuic-2024-vent-mesh","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Clark's enumerated amendments do not modify the Chapter 5 prescriptive vent-mesh atom.","sourceSections":["13.08.060","504.10.2","505.10.2","506.5"]}],"map":{"status":"official-map-required-not-located","summary":"Ordinance 5320 requires public or electronic WUI mapping unless the community risk assessment identifies no WUI; no current official map URL or project-specific IR-class answer was located.","source":{"title":"Clark County Ordinance 5320, Section 13.08.080","url":"https://weddings.vegas/wp-content/uploads/2026/02/ORD-5320.pdf","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-02T00:00:00.000Z"}},"projectTriggers":[{"summary":"The adopted model code reaches only officially declared WUI areas, and Clark's ordinance requires the code official to review those areas.","sourceSections":["302.1","302.2","302.3"],"source":{"title":"Clark County Ordinance 5320","url":"https://weddings.vegas/wp-content/uploads/2026/02/ORD-5320.pdf","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-02T00:00:00.000Z"}}],"localAmendments":[{"kind":"modification","section":"13.08.070–13.08.085","summary":"Ordinance 5320 enumerates local changes in Chapters 1, 3, and 4; it does not enumerate a Chapter 5 amendment.","source":{"title":"Clark County Ordinance 5320","url":"https://weddings.vegas/wp-content/uploads/2026/02/ORD-5320.pdf","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-02T00:00:00.000Z"}},{"kind":"modification","section":"302.2","summary":"Clark requires public or electronic WUI mapping unless its community risk assessment identifies no WUI areas.","source":{"title":"Clark County Ordinance 5320","url":"https://weddings.vegas/wp-content/uploads/2026/02/ORD-5320.pdf","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-02T00:00:00.000Z"}}],"supportingSources":[{"title":"Clark County Code and ordinances","url":"https://www.clarkcountynv.gov/government/elected_officials/county_clerk/county-code","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"},{"title":"Clark County jurisdiction locator","url":"https://www.clarkcountynv.gov/business/doing_business_with_clark_county/divisions/sports_and_special_events/clark-county-jurisdiction-locator","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}],"unresolvedPredicates":["official-boundary","official-hazard-map","official-hazard-class","project-type","effective-date","official-confirmation"],"source":{"title":"Clark County Ordinance 5320","url":"https://weddings.vegas/wp-content/uploads/2026/02/ORD-5320.pdf","publisher":"Clark County, Nevada","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-02T00:00:00.000Z"},"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-26T00:00:00.000Z"},{"id":"iwuic-2024-teton-county","title":"Unincorporated Teton County 2024 IWUIC application","instrumentId":"iwuic-2024","placeId":"us-wy-teton","status":"active","geographicScope":"unincorporated-county","scopeSummary":"Teton County applies its amended 2024 IWUIC only within unincorporated county lands; Fire/EMS separately determines whether IR construction applies and, if so, assigns IR3, IR2, or IR1 after its site-hazard review.","adoptedOn":"2025-01-07T00:00:00.000Z","effectiveOn":"2025-02-01T00:00:00.000Z","requirementIds":["iwuic-2024-class-1-2-20-minute-exterior-door","iwuic-2024-class-1-2-class-a-roof-assembly","iwuic-2024-class-1-2-multilayered-glazing","iwuic-2024-class-1-2-noncombustible-deck","iwuic-2024-class-1-2-noncombustible-exterior-door","iwuic-2024-class-1-2-noncombustible-exterior-wall","iwuic-2024-class-1-2-solid-core-exterior-door","iwuic-2024-class-1-noncombustible-eave","iwuic-2024-class-1-wall-base-protection","iwuic-2024-class-2-solid-eave-enclosure","iwuic-2024-class-3-class-b-roof-assembly","iwuic-2024-noncombustible-gutters","iwuic-2024-roof-profile-closure","iwuic-2024-roof-valley-flashing","iwuic-2024-vent-mesh"],"requirementCoverage":"complete","requirementCoverageSummary":"All 15 normalized model material rows were reviewed against the enacted local amendments; this is complete only for that model crosswalk, not full-code normalization or a finding that every class row applies to one project.","requirementScopes":[{"requirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This exterior-door path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This Class A roof path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.2","505.2"]},{"requirementId":"iwuic-2024-class-1-2-multilayered-glazing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This multilayered-glazing path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.8","505.8"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-deck","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible appendage path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.7","505.7"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-door path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-wall path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.5","505.5"]},{"requirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This solid-core exterior-door path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-noncombustible-eave","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This eave path applies only when Fire/EMS assigns IR1 construction.","sourceSections":["503.2.1","504.3"]},{"requirementId":"iwuic-2024-class-1-wall-base-protection","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This wall-base path applies only when Fire/EMS assigns IR1 construction.","sourceSections":["504.5.1"]},{"requirementId":"iwuic-2024-class-2-solid-eave-enclosure","scopeKeys":["ignition-resistant-class-2"],"scopeSummary":"This solid eave-enclosure path applies only when Fire/EMS assigns IR2 construction.","sourceSections":["505.3"]},{"requirementId":"iwuic-2024-class-3-class-b-roof-assembly","scopeKeys":["ignition-resistant-class-3"],"scopeSummary":"This Class B roof path applies only when Fire/EMS assigns IR3 construction.","sourceSections":["506.2"]},{"requirementId":"iwuic-2024-noncombustible-gutters","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This gutter-and-downspout path applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.4","505.4","506.4"]},{"requirementId":"iwuic-2024-roof-profile-closure","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This roof-profile closure applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.2","505.2","506.2"]},{"requirementId":"iwuic-2024-roof-valley-flashing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This valley-flashing path applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"requirementId":"iwuic-2024-vent-mesh","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This vent-mesh path applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.10.2","505.10.2","506.5"]}],"requirementCrosswalk":[{"modelRequirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized 20-minute exterior-door atom.","sourceSections":["504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized Class A roof atom.","sourceSections":["504.2","505.2"]},{"modelRequirementId":"iwuic-2024-class-1-2-multilayered-glazing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized multilayered-glazing atom.","sourceSections":["504.8","505.8"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-deck","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-appendage atom.","sourceSections":["504.7","505.7"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-door atom.","sourceSections":["504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-wall atom.","sourceSections":["504.5","505.5"]},{"modelRequirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized solid-core-door atom.","sourceSections":["504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-noncombustible-eave","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-eave atom.","sourceSections":["503.2.1","504.3"]},{"modelRequirementId":"iwuic-2024-class-1-wall-base-protection","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized wall-base atom.","sourceSections":["504.5.1"]},{"modelRequirementId":"iwuic-2024-class-2-solid-eave-enclosure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized solid-eave atom.","sourceSections":["505.3"]},{"modelRequirementId":"iwuic-2024-class-3-class-b-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized Class B roof atom.","sourceSections":["506.2"]},{"modelRequirementId":"iwuic-2024-noncombustible-gutters","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-gutter atom.","sourceSections":["504.4","505.4","506.4"]},{"modelRequirementId":"iwuic-2024-roof-profile-closure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized roof-profile atom.","sourceSections":["504.2","505.2","506.2"]},{"modelRequirementId":"iwuic-2024-roof-valley-flashing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized valley-flashing atom.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"modelRequirementId":"iwuic-2024-vent-mesh","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized prescriptive vent-mesh atom.","sourceSections":["504.10.2","505.10.2","506.5"]}],"map":{"status":"linked-official-tool","summary":"Check the parcel/private-land status in the linked official WUI map; a ZIP does not establish inclusion, and Fire/EMS separately assigns the site-specific IR3, IR2, IR1, or does-not-apply result.","url":"https://gis.tetoncountywy.gov/portal/apps/experiencebuilder/experience/?id=0c66d130a6ee459fa3ea7f0a31d1e167","source":{"title":"Teton County WUI map","url":"https://gis.tetoncountywy.gov/portal/apps/experiencebuilder/experience/?id=0c66d130a6ee459fa3ea7f0a31d1e167","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},"projectTriggers":[{"summary":"Except for the stated exemptions, the Building Departments require the Fire/EMS WUI review and permit number before accepting a permit submittal.","sourceSections":["Submitting for IWUIC review"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"A one-story detached tool shed, storage shed, playhouse, or similar accessory structure is exempt only when floor area does not exceed 120 square feet and it is more than 50 feet from the nearest adjacent structure.","sourceSections":["WUI review exemptions"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"A strictly interior project is exempt only when it does not affect exterior components, including windows, doors, or decking; Fire/EMS separately states interior-only projects do not require a WUI permit.","sourceSections":["WUI review exemptions"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"Re-roofing does not require a WUI permit under the current Fire/EMS guidance; applicants are told to contact Fire/EMS before submittal when project status is unclear.","sourceSections":["WUI review exemptions"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"The local Section 101.5 exception requires additions or alterations of no more than 500 square feet to conform as new construction except for Section 602, subject to its sprinkler condition.","sourceSections":["101.5"],"source":{"title":"2024 Teton County Fire Code Resolution","url":"https://tetoncountywy.gov/DocumentCenter/View/32669/2024-Teton-County-Fire-Code-Resolution-Signed-Current","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-01-07T00:00:00.000Z"}}],"localAmendments":[{"kind":"exception","section":"101.5","summary":"The resolution adds a local rule for additions or alterations of no more than 500 square feet, with a Section 602 sprinkler exception.","source":{"title":"2024 Teton County Fire Code Resolution","url":"https://tetoncountywy.gov/DocumentCenter/View/32669/2024-Teton-County-Fire-Code-Resolution-Signed-Current","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-01-07T00:00:00.000Z"}},{"kind":"addition","section":"503.2.1.1","summary":"The resolution prohibits wood shake shingles or siding inside the mapped WUI.","source":{"title":"2024 Teton County Fire Code Resolution","url":"https://tetoncountywy.gov/DocumentCenter/View/32669/2024-Teton-County-Fire-Code-Resolution-Signed-Current","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-01-07T00:00:00.000Z"}},{"kind":"deletion","section":"503.2.3","summary":"The resolution strikes the model wood-roof-covering section while adding its separate local wood prohibition.","source":{"title":"2024 Teton County Fire Code Resolution","url":"https://tetoncountywy.gov/DocumentCenter/View/32669/2024-Teton-County-Fire-Code-Resolution-Signed-Current","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-01-07T00:00:00.000Z"}},{"kind":"exception","section":"504.10.3","summary":"The resolution allows cold-roof ventilation when vents meet Section 504.10.1 for all ignition-resistant construction types.","source":{"title":"2024 Teton County Fire Code Resolution","url":"https://tetoncountywy.gov/DocumentCenter/View/32669/2024-Teton-County-Fire-Code-Resolution-Signed-Current","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-01-07T00:00:00.000Z"}}],"supportingSources":[{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}],"unresolvedPredicates":["official-boundary","official-hazard-map","official-hazard-class","project-type","effective-date","official-confirmation"],"source":{"title":"2024 Teton County Fire Code Resolution","url":"https://tetoncountywy.gov/DocumentCenter/View/32669/2024-Teton-County-Fire-Code-Resolution-Signed-Current","publisher":"Teton County, Wyoming","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-01-07T00:00:00.000Z"},"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-26T00:00:00.000Z"},{"id":"iwuic-2024-town-of-jackson","title":"Town of Jackson 2024 IWUIC application","instrumentId":"iwuic-2024","placeId":"us-wy-jackson","status":"active","geographicScope":"incorporated-boundary","scopeSummary":"The Town of Jackson declares its entire corporate boundary, including later amendments, within the WUI; Fire/EMS still determines whether IR construction applies and, if so, assigns IR3, IR2, or IR1 after its site-hazard review.","adoptedOn":"2024-12-16T00:00:00.000Z","effectiveOn":"2025-01-01T00:00:00.000Z","requirementIds":["iwuic-2024-class-1-2-20-minute-exterior-door","iwuic-2024-class-1-2-class-a-roof-assembly","iwuic-2024-class-1-2-multilayered-glazing","iwuic-2024-class-1-2-noncombustible-deck","iwuic-2024-class-1-2-noncombustible-exterior-door","iwuic-2024-class-1-2-noncombustible-exterior-wall","iwuic-2024-class-1-2-solid-core-exterior-door","iwuic-2024-class-1-noncombustible-eave","iwuic-2024-class-1-wall-base-protection","iwuic-2024-class-2-solid-eave-enclosure","iwuic-2024-class-3-class-b-roof-assembly","iwuic-2024-noncombustible-gutters","iwuic-2024-roof-profile-closure","iwuic-2024-roof-valley-flashing","iwuic-2024-vent-mesh"],"requirementCoverage":"complete","requirementCoverageSummary":"All 15 normalized model material rows were reviewed against the enacted local amendments; this is complete only for that model crosswalk, not full-code normalization or a finding that every class row applies to one project.","requirementScopes":[{"requirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This exterior-door path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This Class A roof path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.2","505.2"]},{"requirementId":"iwuic-2024-class-1-2-multilayered-glazing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This multilayered-glazing path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.8","505.8"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-deck","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible appendage path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.7","505.7"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-door path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-wall path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.5","505.5"]},{"requirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This solid-core exterior-door path applies only when Fire/EMS assigns IR1 or IR2 construction.","sourceSections":["504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-noncombustible-eave","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This eave path applies only when Fire/EMS assigns IR1 construction.","sourceSections":["503.2.1","504.3"]},{"requirementId":"iwuic-2024-class-1-wall-base-protection","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This wall-base path applies only when Fire/EMS assigns IR1 construction.","sourceSections":["504.5.1"]},{"requirementId":"iwuic-2024-class-2-solid-eave-enclosure","scopeKeys":["ignition-resistant-class-2"],"scopeSummary":"This solid eave-enclosure path applies only when Fire/EMS assigns IR2 construction.","sourceSections":["505.3"]},{"requirementId":"iwuic-2024-class-3-class-b-roof-assembly","scopeKeys":["ignition-resistant-class-3"],"scopeSummary":"This Class B roof path applies only when Fire/EMS assigns IR3 construction.","sourceSections":["506.2"]},{"requirementId":"iwuic-2024-noncombustible-gutters","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This gutter-and-downspout path applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.4","505.4","506.4"]},{"requirementId":"iwuic-2024-roof-profile-closure","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This roof-profile closure applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.2","505.2","506.2"]},{"requirementId":"iwuic-2024-roof-valley-flashing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This valley-flashing path applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"requirementId":"iwuic-2024-vent-mesh","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This vent-mesh path applies after Fire/EMS assigns IR1, IR2, or IR3 construction.","sourceSections":["504.10.2","505.10.2","506.5"]}],"requirementCrosswalk":[{"modelRequirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized 20-minute exterior-door atom.","sourceSections":["504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized Class A roof atom.","sourceSections":["504.2","505.2"]},{"modelRequirementId":"iwuic-2024-class-1-2-multilayered-glazing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized multilayered-glazing atom.","sourceSections":["504.8","505.8"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-deck","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-appendage atom.","sourceSections":["504.7","505.7"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-door atom.","sourceSections":["504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-wall atom.","sourceSections":["504.5","505.5"]},{"modelRequirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized solid-core-door atom.","sourceSections":["504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-noncombustible-eave","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-eave atom.","sourceSections":["503.2.1","504.3"]},{"modelRequirementId":"iwuic-2024-class-1-wall-base-protection","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized wall-base atom.","sourceSections":["504.5.1"]},{"modelRequirementId":"iwuic-2024-class-2-solid-eave-enclosure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized solid-eave atom.","sourceSections":["505.3"]},{"modelRequirementId":"iwuic-2024-class-3-class-b-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized Class B roof atom.","sourceSections":["506.2"]},{"modelRequirementId":"iwuic-2024-noncombustible-gutters","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized noncombustible-gutter atom.","sourceSections":["504.4","505.4","506.4"]},{"modelRequirementId":"iwuic-2024-roof-profile-closure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized roof-profile atom.","sourceSections":["504.2","505.2","506.2"]},{"modelRequirementId":"iwuic-2024-roof-valley-flashing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized valley-flashing atom.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"modelRequirementId":"iwuic-2024-vent-mesh","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The local Chapter 5 amendments do not change the normalized prescriptive vent-mesh atom.","sourceSections":["504.10.2","505.10.2","506.5"]}],"map":{"status":"declared-authority-wide","summary":"Ordinance 1416 declares the entire current Town boundary within the WUI, but Fire/EMS still assigns the project-specific IR3, IR2, IR1, or does-not-apply result after site-hazard review.","source":{"title":"Town of Jackson Ordinance 1416, Section F","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"}},"projectTriggers":[{"summary":"Except for the stated exemptions, the Building Departments require the Fire/EMS WUI review and permit number before accepting a permit submittal.","sourceSections":["Submitting for IWUIC review"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"A one-story detached tool shed, storage shed, playhouse, or similar accessory structure is exempt only when floor area does not exceed 120 square feet and it is more than 50 feet from the nearest adjacent structure.","sourceSections":["WUI review exemptions"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"A strictly interior project is exempt only when it does not affect exterior components, including windows, doors, or decking; Fire/EMS separately states interior-only projects do not require a WUI permit.","sourceSections":["WUI review exemptions"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"Re-roofing does not require a WUI permit under the current Fire/EMS guidance; applicants are told to contact Fire/EMS before submittal when project status is unclear.","sourceSections":["WUI review exemptions"],"source":{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"The local Section 101.5 exception requires additions or alterations of no more than 500 square feet to conform as new construction except for Section 602, subject to its sprinkler condition.","sourceSections":["101.5"],"source":{"title":"Town of Jackson Ordinance 1416","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"}}],"localAmendments":[{"kind":"exception","section":"101.5","summary":"Ordinance 1416 adds a local rule for additions or alterations of no more than 500 square feet, with a Section 602 sprinkler exception.","source":{"title":"Town of Jackson Ordinance 1416","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"}},{"kind":"addition","section":"503.2.1.1","summary":"Ordinance 1416 prohibits wood shake, wood shingles, or siding inside the WUI.","source":{"title":"Town of Jackson Ordinance 1416","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"}},{"kind":"deletion","section":"503.2.3","summary":"Ordinance 1416 strikes the model wood-roof-covering section while adding its separate local wood prohibition.","source":{"title":"Town of Jackson Ordinance 1416","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"}},{"kind":"exception","section":"504.10.3","summary":"Ordinance 1416 allows cold-roof ventilation when vents meet Section 504.10.1 for all ignition-resistant construction types.","source":{"title":"Town of Jackson Ordinance 1416","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"}}],"supportingSources":[{"title":"WUI Information for Contractors","url":"https://www.tetoncountywy.gov/671/WUI-Information-for-Contractors","publisher":"Jackson Hole Fire/EMS","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}],"unresolvedPredicates":["official-boundary","official-hazard-class","project-type","effective-date","official-confirmation"],"source":{"title":"Town of Jackson Ordinance 1416","url":"https://www.tetoncountywy.gov/DocumentCenter/View/32222/TOJ-2024-Fire-Code-Current","publisher":"Town of Jackson","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2024-12-16T00:00:00.000Z"},"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-26T00:00:00.000Z"},{"id":"iwuic-2024-washoe-county","title":"Washoe County 2024 IWUIC Chapter 5 application","instrumentId":"iwuic-2024","placeId":"us-nv-washoe","status":"active","geographicScope":"unincorporated-county","scopeSummary":"Washoe County's Building Program applies 2024 IWUIC Chapter 5 under Ordinance 1736, while the companion Chapter 60 fire-code adoption supplies the fire-authority inputs in Truckee Meadows Fire Protection District and other unincorporated areas where the County has fire responsibility; boundary, parcel hazard, water, defensible space, assigned IR class, project, transition date, and official checks remain open.","adoptedOn":"2025-06-10T00:00:00.000Z","effectiveOn":"2025-07-01T00:00:00.000Z","requirementIds":["iwuic-2024-class-1-2-20-minute-exterior-door","iwuic-2024-class-1-2-class-a-roof-assembly","iwuic-2024-class-1-2-multilayered-glazing","iwuic-2024-class-1-2-noncombustible-deck","iwuic-2024-class-1-2-noncombustible-exterior-door","iwuic-2024-class-1-2-noncombustible-exterior-wall","iwuic-2024-class-1-2-solid-core-exterior-door","iwuic-2024-class-1-noncombustible-eave","iwuic-2024-class-1-wall-base-protection","iwuic-2024-class-2-solid-eave-enclosure","iwuic-2024-class-3-class-b-roof-assembly","iwuic-2024-noncombustible-gutters","iwuic-2024-roof-profile-closure","iwuic-2024-roof-valley-flashing","iwuic-2024-vent-mesh"],"requirementCoverage":"complete","requirementCoverageSummary":"All 15 normalized model material rows were reviewed against Washoe County's Chapter 5 adoption and current official construction guide; this is complete only for that model crosswalk, not full-code normalization or a finding that every class row applies to one project.","requirementScopes":[{"requirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This exterior-door path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This Class A roof path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.2","505.2"]},{"requirementId":"iwuic-2024-class-1-2-multilayered-glazing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This multilayered-glazing path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.8","505.8"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-deck","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible appendage path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.7","505.7"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-door path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This noncombustible exterior-wall path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.5","505.5"]},{"requirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2"],"scopeSummary":"This solid-core exterior-door path applies only after the County and fire district inputs route the project to IR1 or IR2 construction.","sourceSections":["503.1","504.9","505.9"]},{"requirementId":"iwuic-2024-class-1-noncombustible-eave","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This eave path applies only after the County and fire district inputs route the project to IR1 construction.","sourceSections":["503.1","503.2.1","504.3"]},{"requirementId":"iwuic-2024-class-1-wall-base-protection","scopeKeys":["ignition-resistant-class-1"],"scopeSummary":"This wall-base path applies only after the County and fire district inputs route the project to IR1 construction.","sourceSections":["503.1","504.5.1"]},{"requirementId":"iwuic-2024-class-2-solid-eave-enclosure","scopeKeys":["ignition-resistant-class-2"],"scopeSummary":"This solid eave-enclosure path applies only after the County and fire district inputs route the project to IR2 construction.","sourceSections":["503.1","505.3"]},{"requirementId":"iwuic-2024-class-3-class-b-roof-assembly","scopeKeys":["ignition-resistant-class-3"],"scopeSummary":"This Class B roof path applies only after the County and fire district inputs route the project to IR3 construction.","sourceSections":["503.1","506.2"]},{"requirementId":"iwuic-2024-noncombustible-gutters","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This gutter-and-downspout path applies after the County and fire district inputs route the project to IR1, IR2, or IR3 construction.","sourceSections":["503.1","504.4","505.4","506.4"]},{"requirementId":"iwuic-2024-roof-profile-closure","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This roof-profile closure applies after the County and fire district inputs route the project to IR1, IR2, or IR3 construction.","sourceSections":["503.1","504.2","505.2","506.2"]},{"requirementId":"iwuic-2024-roof-valley-flashing","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This valley-flashing path applies after the County and fire district inputs route the project to IR1, IR2, or IR3 construction.","sourceSections":["503.1","504.2.1","505.2.1","506.2.1"]},{"requirementId":"iwuic-2024-vent-mesh","scopeKeys":["ignition-resistant-class-1","ignition-resistant-class-2","ignition-resistant-class-3"],"scopeSummary":"This vent-mesh path applies after the County and fire district inputs route the project to IR1, IR2, or IR3 construction.","sourceSections":["503.1","504.10.2","505.10.2","506.5"]}],"requirementCrosswalk":[{"modelRequirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model exterior-door atom.","sourceSections":["Chapter 5","504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model Class A roof atom.","sourceSections":["Chapter 5","504.2","505.2"]},{"modelRequirementId":"iwuic-2024-class-1-2-multilayered-glazing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model multilayered-glazing atom.","sourceSections":["Chapter 5","504.8","505.8"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-deck","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model noncombustible-appendage atom.","sourceSections":["Chapter 5","504.7","505.7"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model noncombustible-door atom.","sourceSections":["Chapter 5","504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model noncombustible-wall atom.","sourceSections":["Chapter 5","504.5","505.5"]},{"modelRequirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model solid-core-door atom.","sourceSections":["Chapter 5","504.9","505.9"]},{"modelRequirementId":"iwuic-2024-class-1-noncombustible-eave","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model noncombustible-eave atom.","sourceSections":["Chapter 5","503.2.1","504.3"]},{"modelRequirementId":"iwuic-2024-class-1-wall-base-protection","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model wall-base atom.","sourceSections":["Chapter 5","504.5.1"]},{"modelRequirementId":"iwuic-2024-class-2-solid-eave-enclosure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model solid eave-enclosure atom.","sourceSections":["Chapter 5","505.3"]},{"modelRequirementId":"iwuic-2024-class-3-class-b-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model Class B roof atom.","sourceSections":["Chapter 5","506.2"]},{"modelRequirementId":"iwuic-2024-noncombustible-gutters","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model noncombustible-gutter atom.","sourceSections":["Chapter 5","504.4","505.4","506.4"]},{"modelRequirementId":"iwuic-2024-roof-profile-closure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model roof-profile atom.","sourceSections":["Chapter 5","504.2","505.2","506.2"]},{"modelRequirementId":"iwuic-2024-roof-valley-flashing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model valley-flashing atom.","sourceSections":["Chapter 5","504.2.1","505.2.1","506.2.1"]},{"modelRequirementId":"iwuic-2024-vent-mesh","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Washoe's Chapter 5 adoption and current guide retain the model prescriptive vent-mesh atom.","sourceSections":["Chapter 5","504.10.2","505.10.2","506.5"]}],"map":{"status":"linked-official-tool","summary":"Washoe's official EZ Fire-WUI map accepts an address or APN and returns the parcel hazard category; the applicable fire district must separately confirm water and defensible-space conformity before Table 503.1 yields an IR class.","url":"https://gis.washoecounty.us/wrms/quick/firehazard?auth=0","source":{"title":"Washoe County Wildland Urban Interface Code Guide","url":"https://www.washoecounty.gov/building/Informational_Pages/Wildland_Urban_Interface_Code_Guide.php","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},"projectTriggers":[{"summary":"Ordinance 1750 applies the companion fire-code layer within Truckee Meadows Fire Protection District and other unincorporated areas where Washoe County has fire responsibility; it adopts IWUIC Chapters 1 through 4, 6, and 7 for that layer, while building-construction matters and the separately adopted Chapter 5 remain with the building code official.","sourceSections":["60.100.010","60.100.020","Chapter 5 deletion","Section 202 Code Official"],"source":{"title":"Washoe County Ordinance 1750","url":"https://library.municode.com/nv/washoe_county/ordinances/code_of_ordinances?nodeId=1417368","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-16T00:00:00.000Z"}},{"summary":"The official guide routes construction through Table 503.1 only after the parcel hazard category and the applicable fire district's water and defensible-space conformity determinations are known.","sourceSections":["Fire Hazard Severity","Defensible Space and Water Conformity","Table 503.1"],"source":{"title":"Washoe County Wildland Urban Interface Code Guide","url":"https://www.washoecounty.gov/building/Informational_Pages/Wildland_Urban_Interface_Code_Guide.php","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"For a building that predates this code, replacing at least 25 percent of the roof covering in a 12-month period routes the replacement covering to the new-construction requirement for the assigned ignition-resistant class.","sourceSections":["507.1"],"source":{"title":"Washoe County Wildland Urban Interface Code Guide","url":"https://www.washoecounty.gov/building/Informational_Pages/Wildland_Urban_Interface_Code_Guide.php","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}}],"localAmendments":[{"kind":"deletion","section":"Chapter 60 companion IWUIC, Chapter 5","summary":"Ordinance 1750 deletes Chapter 5 from the separate fire-code adoption that supplies Chapters 1 through 4, 6, and 7; that deletion does not erase Ordinance 1736's Chapter 100 building-code adoption of 2024 IWUIC Chapter 5.","source":{"title":"Washoe County Ordinance 1750","url":"https://library.municode.com/nv/washoe_county/ordinances/code_of_ordinances?nodeId=1417368","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-16T00:00:00.000Z"}},{"kind":"transition","section":"2024 code transition notice","summary":"Washoe County's adopted-code notice gives a July 1, 2025 effective date and a six-month transition; 2024 editions are required for submittals on and after January 1, 2026, while earlier 2018-code submittals remain under their submitted edition.","source":{"title":"Washoe County Adopted Building Codes","url":"https://www.washoecounty.gov/building/getting_started/building_codes.php","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}}],"supportingSources":[{"title":"Washoe County Ordinance 1750","url":"https://library.municode.com/nv/washoe_county/ordinances/code_of_ordinances?nodeId=1417368","publisher":"Washoe County","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-12-16T00:00:00.000Z"},{"title":"History of Adopted Building Codes within Washoe County","url":"https://www.washoecounty.gov/building/Informational_Pages/History_of_Adopted_Building_Codes.php","publisher":"Washoe 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