FA Exhibit DET-017

Deck-to-wall ledger & the ignition corner

A section adapted from FEMA P-737 Figure 19 shows ledger flashing, a one-foot partial-replacement deck-board band, and two wall retrofit options. A separate strip keeps FEMA guidance distinct from Oregon R327 walking-surface, wall-covering, and underfloor scopes. The conflicting FEMA board-gap dimensions are withheld for review. — FA Exhibit DET-017. Deck-to-wall ledger and the ignition corner. ADAPTED FROM FEMA P-737 FIG. 19 + TABLE 10 AND 2023 ORSC R327.3.3.1 / .3.4.4 / .3.5. 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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