{"id":"iwuic-2024-austin-zones-a-b-c-gutter-noncorrosive-material","license":"CC-BY-4.0","data":{"title":"Austin 2024 IWUIC Zones A, B, and C gutter noncorrosive-material addition","shortName":"Austin Zones A–C gutter noncorrosive material","summary":"Austin retains the model noncombustible gutter-and-downspout rule and separately requires gutter material to be noncorrosive and noncombustible in all three proximity zones.","framing":"A product match covers only gutter role, noncombustibility, and corrosion resistance. The separately stated approved means to prevent leaf and debris accumulation, plus attachment, drainage, official zone, and project scope, remain assembly and official checks.","kind":"code","instrumentId":"iwuic-2024","jurisdiction":"City of Austin Proximity Zones A, B, and C","placeIds":["us-tx-austin"],"appliesToCategories":["gutters"],"quotedText":"Gutters shall be provided with an approved means to prevent the accumulation of leaves and debris in the gutter and be constructed of a non-corrosive and non-combustible material.","source":{"title":"Austin Ordinance 20250410-041, Sections 504.4, 505.4, and 506.4.6","url":"https://services.austintexas.gov/edims/document.cfm?id=451971","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-04-10T00:00:00.000Z"},"constraints":[{"attribute":"assemblyRole","op":"eq","value":"gutter"},{"attribute":"noncombustible","op":"eq","value":true},{"attribute":"corrosionResistant","op":"eq","value":true}],"relatedStandards":["iwuic"],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-26T00:00:00.000Z"},"applications":[{"id":"iwuic-2024-austin","title":"Austin 2024 IWUIC proximity-zone application","instrumentId":"iwuic-2024","placeId":"us-tx-austin","status":"active","geographicScope":"authority-area","scopeSummary":"Austin applies its amended 2024 IWUIC to submissions on or after July 10, 2025 in City full-purpose and limited-purpose areas, subject to transition, official WUI, proximity-zone, project, and mixed-jurisdiction determinations.","adoptedOn":"2025-04-10T00:00:00.000Z","effectiveOn":"2025-07-10T00:00:00.000Z","requirementIds":["iwuic-2024-class-1-2-class-a-roof-assembly","iwuic-2024-class-1-2-noncombustible-exterior-wall","iwuic-2024-class-1-wall-base-protection","iwuic-2024-roof-profile-closure","iwuic-2024-roof-valley-flashing","iwuic-2024-vent-mesh","iwuic-2024-noncombustible-gutters","iwuic-2024-austin-zone-a-20-minute-exterior-door","iwuic-2024-austin-zone-a-noncombustible-exterior-door","iwuic-2024-austin-zone-a-solid-core-exterior-door","iwuic-2024-austin-zone-a-multilayered-glazing","iwuic-2024-austin-zones-b-c-multilayered-skylight","iwuic-2024-austin-zone-a-noncombustible-appendage","iwuic-2024-austin-zone-b-30-foot-noncombustible-appendage","iwuic-2024-austin-zone-c-10-foot-noncombustible-appendage","iwuic-2024-austin-zone-a-noncombustible-eave","iwuic-2024-austin-zones-b-c-noncombustible-eave","iwuic-2024-austin-zones-b-c-solid-eave-enclosure","iwuic-2024-austin-zone-c-class-a-roof-assembly","iwuic-2024-austin-zones-a-b-c-gutter-noncorrosive-material"],"requirementCoverage":"complete","requirementCoverageSummary":"All 15 normalized model material rows were reviewed against the enacted Austin amendments; this is complete only for that model crosswalk, not full-code normalization or a finding that every row applies to one project.","requirementScopes":[{"requirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","scopeKeys":["proximity-zone-a","proximity-zone-b"],"scopeSummary":"The unchanged Class A roof atom is joined only for Austin Proximity Zones A and B.","sourceSections":["504.2","505.2"]},{"requirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","scopeKeys":["proximity-zone-a","proximity-zone-b"],"scopeSummary":"The unchanged noncombustible exterior-wall path is joined only for Austin Proximity Zones A and B.","sourceSections":["504.5","505.5"]},{"requirementId":"iwuic-2024-class-1-wall-base-protection","scopeKeys":["proximity-zone-a"],"scopeSummary":"The unchanged six-inch wall-base path is joined only for Austin Proximity Zone A.","sourceSections":["504.5.1"]},{"requirementId":"iwuic-2024-roof-profile-closure","scopeKeys":["proximity-zone-a","proximity-zone-b","proximity-zone-c"],"scopeSummary":"The roof-profile closure atom is retained across Austin Proximity Zones A, B, and C.","sourceSections":["504.2","505.2","506.2"]},{"requirementId":"iwuic-2024-roof-valley-flashing","scopeKeys":["proximity-zone-a","proximity-zone-b","proximity-zone-c"],"scopeSummary":"The metal valley-flashing atom is retained across all zones, with local woven-valley alternatives remaining separate.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"requirementId":"iwuic-2024-vent-mesh","scopeKeys":["proximity-zone-a","proximity-zone-b","proximity-zone-c"],"scopeSummary":"The one-eighth-inch mesh path remains available across all zones; Zone C also has a listed-vent alternative.","sourceSections":["504.10.2","505.10.2","506.5.1","506.5.2"]},{"requirementId":"iwuic-2024-austin-zone-a-20-minute-exterior-door","scopeKeys":["proximity-zone-a"],"scopeSummary":"The 20-minute exterior-door path survives in Zone A only because Austin deletes Section 505.9.","sourceSections":["504.9","25-12-181(B)"]},{"requirementId":"iwuic-2024-austin-zone-a-noncombustible-exterior-door","scopeKeys":["proximity-zone-a"],"scopeSummary":"The noncombustible exterior-door path survives in Zone A only because Austin deletes Section 505.9.","sourceSections":["504.9","25-12-181(B)"]},{"requirementId":"iwuic-2024-austin-zone-a-solid-core-exterior-door","scopeKeys":["proximity-zone-a"],"scopeSummary":"The solid-core exterior-door path survives in Zone A only because Austin deletes Section 505.9.","sourceSections":["504.9","25-12-181(B)"]},{"requirementId":"iwuic-2024-austin-zone-a-multilayered-glazing","scopeKeys":["proximity-zone-a"],"scopeSummary":"Zone A retains the broad exterior-opening multilayered-glazing path in Section 504.8.","sourceSections":["504.8"]},{"requirementId":"iwuic-2024-austin-zones-b-c-multilayered-skylight","scopeKeys":["proximity-zone-b","proximity-zone-c"],"scopeSummary":"Austin's rewritten Zones B and C glazing text limits this multilayered path to skylights.","sourceSections":["505.8","506.7"]},{"requirementId":"iwuic-2024-austin-zone-a-noncombustible-appendage","scopeKeys":["proximity-zone-a"],"scopeSummary":"Zone A covers attached appendages and detached unenclosed accessory structures without a distance predicate.","sourceSections":["504.7"]},{"requirementId":"iwuic-2024-austin-zone-b-30-foot-noncombustible-appendage","scopeKeys":["proximity-zone-b","within-30-feet-of-habitable-space"],"scopeSummary":"Zone B reaches an unenclosed appendage or structure attached to or within 30 feet of habitable space.","sourceSections":["505.7"]},{"requirementId":"iwuic-2024-austin-zone-c-10-foot-noncombustible-appendage","scopeKeys":["proximity-zone-c","within-10-feet-of-habitable-space"],"scopeSummary":"Zone C reaches an unenclosed appendage or structure attached to or within 10 feet of habitable space.","sourceSections":["506.6"]},{"requirementId":"iwuic-2024-austin-zone-a-noncombustible-eave","scopeKeys":["proximity-zone-a"],"scopeSummary":"Austin Zone A retains the noncombustible ignition-resistant eave path through Sections 503.2.1 and 504.3.1.","sourceSections":["503.2.1","504.3.1"]},{"requirementId":"iwuic-2024-austin-zones-b-c-noncombustible-eave","scopeKeys":["proximity-zone-b","proximity-zone-c"],"scopeSummary":"Austin expressly permits the noncombustible enclosed-eave path in Zones B and C.","sourceSections":["505.3.1","506.4.1"]},{"requirementId":"iwuic-2024-austin-zones-b-c-solid-eave-enclosure","scopeKeys":["proximity-zone-b","proximity-zone-c"],"scopeSummary":"The three-quarter-inch solid eave-enclosure path is joined only for Austin Zones B and C.","sourceSections":["505.3.1","506.4.1"]},{"requirementId":"iwuic-2024-austin-zone-c-class-a-roof-assembly","scopeKeys":["proximity-zone-c"],"scopeSummary":"Austin replaces the model Class 3 Class B minimum with a Class A roof assembly in Zone C.","sourceSections":["506.2"]},{"requirementId":"iwuic-2024-noncombustible-gutters","scopeKeys":["proximity-zone-a","proximity-zone-b","proximity-zone-c"],"scopeSummary":"The unchanged model noncombustible gutter-and-downspout atom applies in every Austin proximity zone.","sourceSections":["504.4","505.4","506.4.6"]},{"requirementId":"iwuic-2024-austin-zones-a-b-c-gutter-noncorrosive-material","scopeKeys":["proximity-zone-a","proximity-zone-b","proximity-zone-c"],"scopeSummary":"Austin's added noncorrosive-material condition applies to gutters—not downspouts—in every zone; the approved debris-control means remains an assembly and official check.","sourceSections":["504.4","505.4","506.4.6"]}],"requirementCrosswalk":[{"modelRequirementId":"iwuic-2024-class-1-2-20-minute-exterior-door","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zone-a-20-minute-exterior-door"],"scopeSummary":"Section 504.9 survives for Zone A, but Austin deletes Section 505.9, so the combined model row is replaced.","sourceSections":["504.9","505.9","25-12-181(B)"]},{"modelRequirementId":"iwuic-2024-class-1-2-class-a-roof-assembly","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The model Class A roof atom remains unchanged for Austin Zones A and B.","sourceSections":["504.2","505.2"]},{"modelRequirementId":"iwuic-2024-class-1-2-multilayered-glazing","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zone-a-multilayered-glazing","iwuic-2024-austin-zones-b-c-multilayered-skylight"],"scopeSummary":"Zone A retains the broad path, while rewritten Zones B and C restrict the path to skylights.","sourceSections":["504.8","505.8","506.7"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-deck","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zone-a-noncombustible-appendage","iwuic-2024-austin-zone-b-30-foot-noncombustible-appendage","iwuic-2024-austin-zone-c-10-foot-noncombustible-appendage"],"scopeSummary":"Austin rewrites appendage reach separately for Zone A, Zone B within 30 feet, and Zone C within 10 feet.","sourceSections":["504.7","505.7","506.6"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-door","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zone-a-noncombustible-exterior-door"],"scopeSummary":"Section 504.9 survives for Zone A, but Austin deletes Section 505.9, so the combined model row is replaced.","sourceSections":["504.9","505.9","25-12-181(B)"]},{"modelRequirementId":"iwuic-2024-class-1-2-noncombustible-exterior-wall","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The model noncombustible exterior-wall atom remains unchanged for Austin Zones A and B.","sourceSections":["504.5","505.5"]},{"modelRequirementId":"iwuic-2024-class-1-2-solid-core-exterior-door","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zone-a-solid-core-exterior-door"],"scopeSummary":"Section 504.9 survives for Zone A, but Austin deletes Section 505.9, so the combined model row is replaced.","sourceSections":["504.9","505.9","25-12-181(B)"]},{"modelRequirementId":"iwuic-2024-class-1-noncombustible-eave","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zone-a-noncombustible-eave","iwuic-2024-austin-zones-b-c-noncombustible-eave"],"scopeSummary":"Austin rewrites eave construction by proximity zone; the noncombustible path is normalized separately for Zone A and Zones B/C.","sourceSections":["504.3","504.3.1","505.3.1","506.4.1"]},{"modelRequirementId":"iwuic-2024-class-1-wall-base-protection","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The model wall-base protection atom remains unchanged for Austin Zone A.","sourceSections":["504.5.1"]},{"modelRequirementId":"iwuic-2024-class-2-solid-eave-enclosure","disposition":"locally-modified","replacementRequirementIds":["iwuic-2024-austin-zones-b-c-solid-eave-enclosure"],"scopeSummary":"Austin rewrites Zone B eaves and adds matching Zone C text, so the model row is replaced with local scope.","sourceSections":["505.3","505.3.1","506.4.1"]},{"modelRequirementId":"iwuic-2024-class-3-class-b-roof-assembly","disposition":"deleted-and-replaced","replacementRequirementIds":["iwuic-2024-austin-zone-c-class-a-roof-assembly"],"scopeSummary":"Austin rewrites Section 506.2 to require Class A in Zone C instead of the model Class B minimum.","sourceSections":["506.2"]},{"modelRequirementId":"iwuic-2024-noncombustible-gutters","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"Austin retains the model noncombustible gutter-and-downspout sentence in all three zones, then adds a separate gutter-only condition.","sourceSections":["504.4","505.4","506.4.6"]},{"modelRequirementId":"iwuic-2024-roof-profile-closure","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The profile-space closure atom is retained in Zones A and B and repeated in rewritten Zone C Section 506.2.","sourceSections":["504.2","505.2","506.2"]},{"modelRequirementId":"iwuic-2024-roof-valley-flashing","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The model metal valley-flashing atom remains, with local woven-valley alternatives layered alongside it.","sourceSections":["504.2.1","505.2.1","506.2.1"]},{"modelRequirementId":"iwuic-2024-vent-mesh","disposition":"adopted-unchanged","replacementRequirementIds":[],"scopeSummary":"The prescriptive mesh atom remains in every zone; Zone C additionally offers a listed-vent path.","sourceSections":["504.10.2","505.10.2","506.5.1","506.5.2"]}],"map":{"status":"linked-official-tool","summary":"Austin's official map is a starting point; onsite measurement and the code official determine WUI and proximity-zone results.","url":"https://austin.maps.arcgis.com/apps/instant/media/index.html?appid=0c0889a8bac34cf4a1ca6ce6777c3937","source":{"title":"Austin WUI Code map","url":"https://austin.maps.arcgis.com/apps/instant/media/index.html?appid=0c0889a8bac34cf4a1ca6ce6777c3937","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},"projectTriggers":[{"summary":"Chapter 5 reaches a building or structure constructed, modified, located in, or relocated into a designated WUI area.","sourceSections":["503.1"],"source":{"title":"Austin Ordinance 20250410-041","url":"https://services.austintexas.gov/edims/document.cfm?id=451971","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-04-10T00:00:00.000Z"}},{"summary":"Austin Fire describes full-purpose and limited-purpose City areas as in scope, fully ETJ parcels as out, and mixed jurisdictions as case-by-case.","sourceSections":["Current administrative scope"],"source":{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"summary":"Austin Fire assigns submissions from January 1, 2021 through July 9, 2025 to the amended 2015 IWUIC and submissions on or after July 10, 2025 to the amended 2024 IWUIC.","sourceSections":["Austin WUI Code History"],"source":{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}}],"localAmendments":[{"kind":"transition","section":"Austin WUI Code History","summary":"Application submissions from January 1, 2021 through July 9, 2025 use the amended 2015 IWUIC; submissions on or after July 10, 2025 use the amended 2024 IWUIC.","source":{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"kind":"transition","section":"Changes to Approved Site Plans","summary":"Site plans approved under the 2015 IWUIC or earlier retain the older-code treatment for the vicinity plan, individual-structure access and water supply, access, defensible space, and ember ignition zone; a modification adding a structure or unit or increasing fire area must meet the updated rules for the revised portion, and permits submitted on or after July 10, 2025 use the 2024 IWUIC.","source":{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"kind":"transition","section":"WUI Vicinity Plans","summary":"A WUI Vicinity Plan approved under the 2015 IWUIC may be used for new phases in the same subdivision unless changes affect structure-to-wildland proximity; a PUD plan covering only part of the project does not cover other sections unless the approved PUD agreement does.","source":{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"kind":"transition","section":"Volume Builder Program Participants","summary":"Master Plans submitted before July 10, 2025 may continue with the 2021 Residential Code and 2015 IWUIC for that section or phase; new sections or phases needing a new Master Plan and Master Plans submitted on or after that date use the 2024 technical codes, and older prototypes require updating before reuse.","source":{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}},{"kind":"deletion","section":"25-12-181(E)","summary":"Austin deletes the model Class 1, Class 2, and Class 3 ignition-resistant-construction definitions.","source":{"title":"Austin Ordinance 20250410-041","url":"https://services.austintexas.gov/edims/document.cfm?id=451971","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-04-10T00:00:00.000Z"}},{"kind":"modification","section":"503.1 and 504–506","summary":"Austin substitutes Proximity Zones A, B, and C for the model construction classes and rewrites affected material scopes.","source":{"title":"Austin Ordinance 20250410-041","url":"https://services.austintexas.gov/edims/document.cfm?id=451971","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-04-10T00:00:00.000Z"}},{"kind":"deletion","section":"505.9","summary":"Austin deletes the model Zone B exterior-door section, so the combined Class 1 and 2 door rows cannot remain joined.","source":{"title":"Austin Ordinance 20250410-041","url":"https://services.austintexas.gov/edims/document.cfm?id=451971","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-04-10T00:00:00.000Z"}}],"supportingSources":[{"title":"Wildland-Urban Interface Code","url":"https://www.austintexas.gov/fire/wildland-urban-interface-code","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}],"unresolvedPredicates":["official-boundary","official-hazard-map","project-type","effective-date","official-confirmation"],"source":{"title":"Austin Ordinance 20250410-041","url":"https://services.austintexas.gov/edims/document.cfm?id=451971","publisher":"City of Austin","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z","documentDate":"2025-04-10T00:00:00.000Z"},"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-26T00:00:00.000Z"}],"products":[],"matchContract":"Products appear only when their cited fields satisfy this requirement's normalized constraints. Application scope and unresolved predicates remain separate; an attribute match is not a permit decision."}