My basement has a slight dampness issue, where if I leave things on the floor they will get wet. There are no leaks and no standing water, the moisture seems to be wicking up through the concrete.
I conducted a simple test to make sure moisture in the air was not condensing on the cold floor, by taping a small square of 3mil poly to the floor. When I returned a day later there was moisture under the poly (between the plastic and the floor), so I figure the moisture is coming in from below.
I know they make products like DryLok for water proofing walls, but can it be used on the floor as well? Are there better products available that are designed specifically for the floor?
I was also looking at Rust-Oleum EPOXY SHIELD Garage Floor Coating (since it looks nice and seems to be easy to clean), is this an appropriate product to use on a basement floor? Will it prevent moisture from leaching in?
- The basement already has a perimeter drain, and sump pump.
- The basement will not be finished in any way, so I'm looking for a relatively simple and cheap solution.
I found a couple other products that may or may not work.
Can products like this really do what they say they can?
There was an area of the floor that had been painted (with an unidentified paint), so I did the plastic test there and there was no moisture under the plastic (even after a couple days of rain). So now the question is what is this mysterious paint, that blocks moisture when no paint should apparently be able to do so?
I have determined that the moisture is caused by capillary action wicking moisture up slowly through the concrete, and is not caused by cracks or other sources of leaks in the slab.