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Failure Fingerprint

Failed window flashing

Water is not reliably directed around and out of a wall opening.

Act soonurgency profile
Typical location

Head, jambs and sill of exterior openings

Timing fingerprint

Wind-driven or prolonged rain

Visible or audible pattern

Water at top or lower corners and staining below opening

Best separating check

Correlate wind direction and inspect water-management layers

Evidence that weakens this cause

Cold-weather droplets without rain

Do not confuse it with

Open a side-by-side comparison

Window flashing failure vs sealant failureBoth can wet openings, but entry location and wall drainage behavior differ.