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Common Water Issue in BC
Deck Ledger Flashing Failure — Structural Water Entry
Failed flashing at the deck-to-house junction is a common and serious water entry point. Water can rot the ledger board and house structure.
Possible Causes
- •Missing or improperly installed deck ledger flashing
- •Failed caulking at flashing joints
- •Water wicking through deck board ends at house wall
- •Deck slope directing water toward house rather than away
- •Vegetation or debris trapping moisture against house at deck junction
Recommended Steps
- 1Check the junction between deck and house for visible gaps or damage
- 2Look for staining or rot on siding immediately above deck
- 3Inspect deck ledger from below (if accessible) for signs of rot
- 4Ensure deck slopes away from house, not toward it
- 5Call professional building envelope inspection for comprehensive assessment
Related Services
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