I have a cabin built on a concrete slab. During the humid summers in MN, I get alot of moisture through the floor. Can anyone recommend a waterproof membrane I can put down to prevent the moisture problem before installing carpeting?
I suspect what you have is moisture from the warm, humid air condensing onto the cold concrete.
I agree with theeagle, in that if you isolate the floor from the air, it will stop the problem. It might be enough just to have a membrane carpet (outdoor) to insulate the air from the concrete.
Good Luck!
Dodgeman
Thanks theeagle and Dodgeman for your replies. You are correct – I think the problem is the temperature difference from the cool concrete to the humid air. A dehumidifier works well to dry the floor over time, but unfortunately we are not at the cabin all enough to babysit the tanks and a floor drain is nowhere near. The soil is very sandy and the grade outside the structure is more than adequate.