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-   -   Stain under windows. (

peter101 03-30-2013 09:31 PM

Stain under windows.
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Stain under windows.

After winter, the bricks under windows have white powder (efflorescence) as shown on the photo.

When I bought the house last year and some contracts told me it was because the window seals had a lot cracks and the water enter the wall through the cracks. So, I redo all window caulking last year, but the problems are still not solved.
Now some contracts told me I have to repoint the brick joints under the windows to solve this problems.
I would like to get your opinions. Thanks.

nealtw 04-10-2013 10:09 PM

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Is the bottom surface of the stone sill sloped down away from the building or does it have a drip edge cut into it? If not water can kling to it and travel back to the brick.

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