FA Exhibit MECH-006

The three exposures: ember vs radiant vs direct flame on one wall

One teaching wall section receives three separate FEMA-defined pathways: wind-carried embers at joints and openings, radiant heat across an air gap, and direct flame contact. The paths are not ranked. — FA Exhibit MECH-006. Three wildfire exposures on one wall. AFTER FEMA P-737 FIGURE 2 + §4.3 EXTERIOR WALLS · PUBLIC-DOMAIN SOURCE. 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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