Facts/Thoughts on Crawl Space Venting During the Winter

Since relative humidity  in air raises when it is cooled, it can be lowered when we heat the air.  During the winter we could open vents in our crawl space on a cool or wintery day bringing in near freezing air to mix with the much warmer air under our house that will significantly lower the relative humidity to 5% or less.  This dry air will begin to dry out the crawl space.  Granted the cooler outside air will lower the air temperature in the crawl space, but the wood and other materials will dry out and there will be no condensation.

Some of the negative side of this process includes: cold floors, cold drafts, and increased utility bills!