Metal building condensation

Don't have a cheap or quick answer for you or familiarity with conditions in your part of the country. BUT--- believe it or not concrete is not moisture proof . Our home basement smelled like ... well , a basement when we moved in. Since it was one big big empty room that was the time to do something. Found a product called Radon Seal. Looks like water in 5 gallon buckets. (Thought I had been sold headlight oil ). Applied it with hand garden sprayer (follow directions) our basement is much less humid and smells much better ( it's been10 years) product is supposed to penetrate concrete ___inches , form a vapor barrier as well as protect against radon but not cheap. Something like that may help along with other ideas. If not now ,in future.
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