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Old 07-03-2008, 12:50 PM
 
1 posts, read 19,895 times
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I have patterened concrete patio -3 years old, I just found water leak in basement. Noticed that water is leaking from the baseline(line that meet patio and wall). There is expansion joint (asphalt impregnated fiber strips). I think 'CALUKING" is the best way to fix it. Can you please advise
1) What kind of caulk di I have to use
2) Should I cover all expansion joint(Black thing between wall and patio)?
3) Is there any other solution?


Thanks in advance!!!
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Old 07-03-2008, 09:19 PM
 
Location: Knoxville
4,376 posts, read 21,878,667 times
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First of all, it sounds like your patio does not slope AWAY from the house properly. Water should flow away from the foundation, not towards it.

Second, it sounds like your basement foundation walls were not water proofed very well either. If they were, water would not be coming in.

However, water IS coming in - so how to deal with it. Caulking or sealing the expansion joint will be a temporary fix at best. It's not called an expansion joint for nothing. You could find a very aggressive epoxy sealant to fill the gap and seal the joint. That may work for a while.

You also could use the paint on water proofing products on the inside of the basement walls and seal them.

You should check the slab for drainage and confirm the water flows away from the house. If it flows toward the house, you might consider saw cutting a drainage channel in the slab and divert the run off away from the foundation.

What kind of material butts against the slab?
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Old 07-04-2008, 06:43 AM
 
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We had a similar issue in one of our houses. It was a 1920's Craftsman and the previous owners put in a slab of concrete for a patio by the back door. We installed basically a concrete curb that angled up the side of the house about 3" and down to the slab, sort of like crown molding on a ceiling. That took care of the problem.
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Old 07-04-2008, 09:13 AM
 
18,857 posts, read 57,374,908 times
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Quote:
Originally Posted by golfgal View Post
We had a similar issue in one of our houses. It was a 1920's Craftsman and the previous owners put in a slab of concrete for a patio by the back door. We installed basically a concrete curb that angled up the side of the house about 3" and down to the slab, sort of like crown molding on a ceiling. That took care of the problem.
Good solution.

The three I can think of off-hand are curb, ground gutter, jackhammer and drainage tile/waterproofing. If the house has no roof gutters, installing those may help.
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Old 08-17-2010, 03:54 PM
 
11 posts, read 38,872 times
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I would suggest using a pavement sealant to "caulk" your expansion joint. I know that Dow Corning has silicone pavement sealants that can handle extreme weather and severe expansion joint movement. Hope this helps. Dow Corning Pavement Sealants for highways, bridges and runways - Dow Corning
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