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Old 06-03-2013, 08:02 PM  
drewdin
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Default Condensation on foundation walls

Hi Guys,

It rained like crazy here yesterday, I went to check the basement and sure enough there is water in a few spots.

The weird thing is that the water is not coming in from a crack or seeping through the floor, I can see the beads of water forming on the walls and drooling down to the floor.

I have never seen this before, its only in 4 spots. The spots are about 1-2 feet off the floor.

There isnt a ton of water but there is abot a 2-3 foot radius on the floor where its moist.

What can I do to fix this? Thanks



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Old 06-03-2013, 08:07 PM  
nealtw
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Perimeter drain and wall waterproofing of the exterior wall have failed?



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Old 06-03-2013, 08:33 PM  
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Hi Nealtw, i havent tried anything. do I just dig down and use a waterproof type paint or sealer? Thanks

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Old 06-03-2013, 09:02 PM  
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I would think digging to find the water table first, checking the perimeter drain and see what the problem is there first. If the drains are free and running the problem might be clay type soil not letting water to get there. Depending on what foundation is, all concrete walls have steel of one type or another that held the forms together, if they weren't sealed properly, sooner or later they rust out and leak. All the sealing in the world won't keep water out, the basement isn't like a swimming pool, so you need to get rid of the water too.

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Old 06-04-2013, 05:50 AM  
WindowsonWashington
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What is the indoor humidity level?

Temp on the outside and of the basement wall?

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Old 06-04-2013, 10:12 AM  
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the house is from 1927 so I have a fieldstone foundation. I have to say the wet spots are about ~5 feet deep to the top soil so there would be a ton of digging. It was humid outside but the basement was rather cool.

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Old 06-04-2013, 10:23 AM  
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Could be condensation but ususaly dosn't show up in a locallized zone, were the cold water pipes dripping with water.

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Old 06-04-2013, 04:13 PM  
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Do you have CMU's for the walls that the bottom rows are filled cells with water, condensing through to inside, where are you?

Gary
PS. answer #5 first... thanks!

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Old 06-04-2013, 04:34 PM  
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GBR -

The foundation walls are field stone (built 1927), so you can expect variable results depending on the local wall and exterior conditions in addition to conditions interior air conditions.

Condensing comes from warm moist air on a cold surface.

Dick

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Old 06-04-2013, 07:07 PM  
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it was literally dripping down the walls in a few spots. Whats a CMU?

The main poop pipe is half pvc and half cast iron. Its in one corner of the room where the dripping is, the cast iron pipe is condensing.



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