leaking at top of patio door

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  #1  
Old 04-15-13, 08:00 PM
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leaking at top of patio door

Walkout basement has a patio door. It leaks water at top when it rains heavily outside, not every time, depends on the direction of wind. I caulked outside above patio door. Checked outside of the walls, no apparent cracks or holes. New roof, also went up and checked, roof is fine. Where the water comes from? Thanks.
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Old 04-15-13, 08:23 PM
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Without more details, I would suspect improper installation of the door and windows above plus too much caulk that can plug the points where water should be allowed to drain out instead of keeping it inside the wall and flowing down to come out somewhere.

Not surprising, since most (over 50%) doors and windows are installed improperly, especially when it comes to moisture barriers and flashing working together.

Dick
 
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Old 04-15-13, 08:40 PM
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I too would look at the window above and scrutinize for water entry points either on the sill or frame to brick portions.
 
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Old 04-15-13, 09:13 PM
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The brick in-between the patio door and the window above looks to be discolored, compared with the rest of the brick. That usually indicates the brick is wet behind, and not drying out.

So it's possibly a combination of poor sealing of the window to the brick (to keep water out) and also likely the mortar of the brick sill which often develops cracks that allow water to run right down the wall behind the brick. Those bricks sometimes are at a shallow pitch and/or don't go back very far behind the front edge of the window, which both contribute to leaks in that outer sill area.
 
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Old 04-17-13, 07:31 PM
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Thanks for the help. I will check the window above the door first.
 
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Old 04-28-13, 10:10 AM
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In my second picture, there is a small hole. Through the hole, by using my see snake, I can see concrete wall right there, Is it possible that the installer didn't install the header flashing?
 
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