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Lessons / Ledger and attachment
Watch it happen
Flashing over the ledger
Show a hint
No flashing, so rain runs behind the ledger and rots the rim it is bolted to.
Every number here is a working estimate. Check it with your building authority.Turn JavaScript on to work the lesson. The drawing shows how it starts.
The rule this lesson teaches
Flashing lapped over the ledger sends water out, not behind it into the house rim.