Crawl Space Insulation - Inadequate Vapor Barrier
The flimsy vapor barrier shown on this crawl space floor is in bunches and ripped apart in many areas. The standard 6-mil black liner is often used in Virginian homes but is not effective at holding back the earth's moisture rising from the ground. The vapor barrier in this crawl space is covered in dust, debris, and fiberglass, and is torn apart in many places by service people. Exposed dirt flooring within many holes created in the liner allow moisture from the ground to rise into the crawl space, causing the relative humidity to increase, rendering this liner useless at keeping the crawl space sealed.