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I have a slab-on-grade house, and under the dining room floor there is evidence of moisture. Not liquid, but damp concrete along the footing/slab seam, which has discolored the existing vinyl floor.
I am in the process of pulling out the vinyl, in preparation for some new Pergo laminated flooring, and would prefer *not* to have moisture under it.
Anyone have experience in fixing a problem like this? I am aware of (but have no experience with) products like Zypex and Thoroseal. I have used Sikaflex and other acrylic products on boats, but don’t know if they would be appropriate in this application.
Also, would be interested in hearing about how to prep the concrete to give the fix the best possible chances of success.
Thanks,
Bruce
Replies
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Bruce
Call Basement Systems, 1-800-541-0487 or visit their site at basementsystems.com. they have a product called ThermalDry that you can put on the floor we have had great success with. It vents the floor plus insulates it and only takes up 7/8" of head room.
Rob
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I have a slab-on-grade house, and under the dining room floor there is evidence of moisture. Not liquid, but damp concrete along the footing/slab seam, which has discolored the existing vinyl floor.
I am in the process of pulling out the vinyl, in preparation for some new Pergo laminated flooring, and would prefer *not* to have moisture under it.
Anyone have experience in fixing a problem like this? I am aware of (but have no experience with) products like Zypex and Thoroseal. I have used Sikaflex and other acrylic products on boats, but don't know if they would be appropriate in this application.
Also, would be interested in hearing about how to prep the concrete to give the fix the best possible chances of success.
Thanks,
Bruce
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Sounds like you have a cold joint in your concrete and the best way is fix the problem. If you only try to cover the problem then your new wood floor could pay the price. Based on what you've told me I'd start by sawing out the joint and replaceing with one of the new epoxy based patching compounds. Then use a sealing coumpound on the slab. To be on the safe side I'd even add a layer of builders felt glued down to help stop water from moving up to your floor. Tell me how you like the pergo floor when you get it in