Crawl Space Repair - Crawl Space vents are sealed up.
You might think that ventilating your crawl space will help with airflow and control temperatures under your house but that is not the case. If air vented into the crawl space is damp and wet, the floors above it will feel damp and wet as well due to stack effect. Not only that but open vents can allow water and pests to enter, resulting in possible mold and feces polluting your crawl space air.