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Old 09-01-2012, 10:06 AM   #1
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Basement Window Sill


Where the ground meets my basement window, there is about a 2" concrete sill that is broken into about 5 pieces, exposing the tops of the cinder block wall (explains why water was coming through despite my drainage efforts). How can I go about repairing this? Obviously I can't spread concrete directly over the blocks, so what do I need to put down before the concrete?

Thanks!

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Old 09-01-2012, 05:39 PM   #2
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Basement Window Sill


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Originally Posted by busterbluth123 View Post
Where the ground meets my basement window, there is about a 2" concrete sill that is broken into about 5 pieces, exposing the tops of the cinder block wall (explains why water was coming through despite my drainage efforts). How can I go about repairing this? Obviously I can't spread concrete directly over the blocks, so what do I need to put down before the concrete?

Thanks!


You can spread concrete over the blocks if you stuff the openings in the blocks with a filler, crumple up some plastic bags,or use bubble wrap to fill empty space,where there's a will there's a way.

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Old 09-01-2012, 05:54 PM   #3
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Basement Window Sill


Posting a picture so we can see what your seeing is always helpfull.
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Old 09-01-2012, 06:00 PM   #4
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Basement Window Sill


Fill any void with expanding spray foam, then cement it.
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Old 09-01-2012, 06:52 PM   #5
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Basement Window Sill


Without that picture it's hard to say exactly. But instead of filling blocks that may well leak I'd concide using a cap block instead. Better look and less likly to leak.
http://www.bing.com/images/search?q=...991CE7EB583961
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Old 09-04-2012, 08:46 AM   #6
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Basement Window Sill


Are you sure it's actually a concrete sill and not just a mortar "wash" over the block? If you have the room, a one-piece stone sill (like what joecaption linked to) would work well.........

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