I live in the hot, wet, and humid coastal area of Virginia. I have previously taken steps to keep the rain out such as poly sheeting over sand (above outside grade) piping all downspouts away from the foundation, and ensuring a good slope away from the house. I have foundation vents (open in the summer - close in the winter), but I'm not sure I have enough.
I am considering adding power vents, but logically, it would seem I would be just pumping more moisture through the crawlspace!
I have rented a carpet fan and set it up to blow into the crawlspace to increase airflow. I was going to try that for a few days and then check on things. If it seemed dryer, I was going to assume more airflow is good and purchase the power vents.
I have also read that completely sealing the crawlspace (block vents, more poly, no air flow) is now accepted as an option as this should keep the humid air from entering the crawl space.
I would appreciate any advice and assistance.
Thanks in advance,