{"id":"ibhs-base-wall-clearance","license":"CC-BY-4.0","data":{"title":"IBHS Wildfire Prepared Home Base six-inch wall-base clearance","shortName":"IBHS Base six-inch wall-base protection","summary":"The current IBHS Base standard specifies at least six vertical inches of noncombustible material at the base of exterior walls.","framing":"A product can address the material and height attributes. Continuity, transitions, ground clearance, drainage, attachment, and the nearest horizontal surface must be checked on the building.","kind":"program","instrumentId":"ibhs-wildfire-prepared","jurisdiction":"California and Oregon program applicants","appliesToCategories":["siding","eaves"],"quotedText":"All exterior walls shall have at least 6-inches of noncombustible material applied vertically on the base of the wall measured from the ground at grade and the nearest horizontal surface.","source":{"title":"2025 Wildfire Prepared Home Technical Standard","url":"https://wildfireprepared.org/wp-content/uploads/WFPH-Standard.pdf","publisher":"Insurance Institute for Business & Home Safety","sourceType":"insurer-checklist","accessedOn":"2026-08-24T00:00:00.000Z","documentDate":"2025-06-17T00:00:00.000Z"},"constraints":[{"attribute":"assemblyRole","op":"eq","value":"wall-base-protection"},{"attribute":"heightIn","op":"gte","value":6,"unit":"inch"},{"attribute":"noncombustible","op":"eq","value":true}],"relatedStandards":["ibhs-wildfire-prepared"],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-24T00:00:00.000Z"},"applications":[],"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."}