Crawlspace Condensation and Vapor Barriers
In summer, hot and humid air enters crawlspace vents and hits cool ductwork and floor joists, causing condensation. This constant moisture rots wood and breeds wood-decaying fungi. If your vapor barrier does not cover one hundred percent of the dirt floor, or if it is torn, ground moisture compounds the issue. Keep the soil covered, seal foundation vents, and run a dedicated crawlspace dehumidifier to keep relative humidity below sixty percent.








