[joabraun]

I am looking to put a small workout room in the basement and was considering rubber flooring:
http://www.rubberflooringinc.com/rubber-roll/8mm-rubber-roll-designer-series.html

The room is below grade and the floor has been painted for several years.

Can I assume that I am not likely to have a moisture problem btw the concrete subfloor and the rubber roll?

 

[Awoodfloorguy]

If you have never experienced any moisture issues in this room, then it is probably unlikely to be a problem. However, you could ask the manufacturer what their take is on moisture and maybe even get a calcium chloride test to test the moisture to ensure you are within their guidelines.

 

[Fix'n it]

tape a large piece of clear plastic to the floor. watch it for 1 week. this will tell you about what to expect.