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There is no easy fix to the sweaty slab...

Posted by jb on July 5th, 2000 02:30 PM
In reply to new flooring to put on a concrete slab? by M Holls on July 5th, 2000 08:10 AM [Go to top of thread]

Hi, It sounds like you have an uninsulated slab and it is now warm and humid outside (and inside). The slab will be wet from condensation. You can try to remediate the situation with heavy and constant dehumidifying and/or air conditioning, but it will probably still be wet to some degree. The only permanent fix is to somehow put an vapor barrier and insulation in between the warm moist air and the cool slab. You can build a new floor on top of the old but you would add approx. 3" to the height of the floor. Or, you could rip up the entire slab, put in insulation etc. and pour a new slab. If anyone has ever solved this nasty and persistant problem in any other way (that doesn't raise the floor at least 2.5 - 3") please post.
See my previous post at:

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