Wall bottom edge: foundation exposure, weep screed, 6" clearances
FA Exhibit DET-016. Wall bottom edge: foundation exposure, weep screed, and 6-inch clearances. AFTER ORSC R327.3.3.1 · 2021 IRC R703.7.2.1 · IBHS WILDFIRE PREPARED HOME §2.1.4 (VOLUNTARY) · PARENT: WAL-100. Illustrative — not a construction document. Verify with your building official. CC BY 4.0.
Technical review: Grayson Graham. Last verified 2026-08-25. JSON
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<img src="https://fireapproved.com/diagrams/det-016-wall-bottom-edge.svg" alt="Three panels keep distinct wall-base rules separate: Oregon wildfire wall-covering extent, exterior-plaster weep-screed clearances, and the voluntary IBHS six-inch noncombustible base requirement." />