{"id":"det-020","license":"CC-BY-4.0","data":{"title":"Garage door perimeter: the gap inventory + weatherseal retrofit","file":"/diagrams/det-020-garage-door-perimeter.svg","caption":"FA Exhibit DET-020. Garage door perimeter gap inventory and weatherseal retrofit.","alt":"A garage door elevation identifies the header, both jambs, and bottom as one continuous perimeter. NTS details compare an open ember path with gasket contact and distinguish IBHS model language from adopted local code.","kind":"diagram","rights":"cc-by-4.0","depicts":"The garage door is not one gap but a four-edge perimeter—header, two jambs, and bottom","identifiableAddress":false,"exifGpsStripped":true,"derivation":"profile shown diagrammatically.","technicalReviewer":"Grayson Graham","lastVerified":"2026-08-25T00:00:00.000Z"}}