If you start seeing condensation in your crawl space, you have to react fast, condensation can directly lead to mold problems and bad air quality in your home. But why is it happening? Usually temperature in your crawlspace is lower than temperature of the outside air, and when you vent your crawlspace due to temperature difference, humidity inside will rise dramatically. When humidity is above 100%, air in such crawlspaces can’t hold moisture any more and condense begins to form.
As we said numerous times before, the best way to take care of moisture problem in your crawlspace is to seal (encapsulate) it.