Crawlspace Condensation and High Summer Humidity
Charlotte's heavy summer humidity paired with cooler crawlspace temperatures creates a perfect storm for wood rot. When humid air enters traditional crawlspace vents, it condenses on cool wood joists and subfloors. If your crawlspace wood moisture content rises above 19%, mold grows and wood begins to decay. Close your foundation vents during the humid summer months, lay down a 100% coverage 6-mil vapor barrier, and consider running a dedicated crawlspace dehumidifier to keep moisture levels below 60%.
