Brick parapet: What's causing this secondary leakage

I can’t tell how high this building is or how tall the parapet wall is but another possibility is that you are seeing a ledger area that is collecting water especially if weep holes were not installed. Ledgers are typically installed at each story over 30’ on a floor to floor backup system. Not sure this is the case here, but if you look at the detail I uploaded you can see how this would fit with the picture where you have a lintel above the window but a ledger above that at the roof/floor line. The upper topmost band of moisture could be due to the corbeling and change in bond pattern creating small ledges on the back of the brick that water could collect on. Just a guess, really hard to tell just from the pictures.

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Welcome to our forum, Jason!..Enjoy! :smile:

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I seconded that Welcome, Jason, Enjoy!! :smiley:

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Thank you!

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