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Old 01-21-2008, 07:07 PM   #1
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concrete sweating bad


Basement is almost 5 yrs. old. approx 1650 sq. ft. I have a wall facing north side that is approx 14' long that sweats bad. I painted it with dry lock paint , to seal it and it still is wet. of all the walls in basement no other north side walls are wet, just one area . basement is insulated with foam sprayed on joists around outside walls. In Michigan. any ideas or explanation?

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Old 01-23-2008, 08:18 AM   #2
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concrete sweating bad


no one out here has concrete knowledge? Help out please

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Old 01-23-2008, 11:35 AM   #3
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concrete sweating bad


Ayuh,...... There's plenty of Knowledge at this site,.....

Maybe you need to post alittle more Info,+/ or pictures........

Is this wall above, or below grade,..??

Condensation is usually caused by warm humid air meeting a cold surface......
Are you sure it's Condensation,..??..??
Or,....
Is the wall Leaking,..??
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Old 01-23-2008, 12:36 PM   #4
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concrete sweating bad


When you tape a plastic square on the wall where is the moisture forming?? Underneath or on top of the plastic?
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Old 01-24-2008, 09:21 AM   #5
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concrete sweating bad


This wall is half under ground and half not . It is a north facing wall that is near, but not part of my daylit wall ( not a walk out but half wall with windows) I will either be crystalized(like frost) or wet to the touch, but not really dripping of the wall, and it 's not always this way. I caulked tha outside of sill plate thinking cold air was doing it Icaulked the areas where metal ties go through poured walls , all areas above in floor joist are sprayed foam, so i'm lost as to why?
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Old 01-24-2008, 10:25 AM   #6
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concrete sweating bad


You must have poured basement and not block.

The interior surface of your wall is too cold if you have frost. Just moisture could be condensation.

I would suggest gluing 2" extruded polystyrene to the exterior and cover with a stucco-type finish. - While I was at it, I would dig down and insulate as much as possible make sure my backfill carried the surface water well away from the house.

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