We are approaching the end of the summer and hopefully everyone enjoyed most of it between rain drops and humidity.  On a personal note, we had to deal with an issue of overwhelming humidity in our crawl space that required professional assistance to resolve it.  The approach to crawl spaces has clearly evolved with crawl space vents, no longer being recommended. Instead, encapsulating it as if it is living space is the new mind set.  Ours needed a commercial grade dehumidifier installed in addition to the encapsulation.  The difference in air quality is amazing.  If you are considering purchasing a home with a crawl space or currently reside in one that is not already been encapsulated, keep in mind that this may be a worthwhile investment for you down the road.