The original liner installed in this Henrico crawl space was a flimsy 6-mil vapor barrier. There were gaps in the liner, exposing the crawl space to moisture rising from the earth. This moisture can increase the relative humidity, which can lead to mold or mildew growth, condensation, and higher energy bills. We replaced this old liner with our 10-mil CleanSpace Light vapor barrier, which gets wrapped around all piers and mechanically fastened and sealed six to eight inches above outside grade on the foundation walls. CleanSpace will help protect the crawl space from moisture rising from the earth and comes with an antimicrobial, called UltraFresh, built into the material to help mitigate mold growth on the liner, itself.