4.9 
Rotting foundation
When evaporation happens, it rises to the wooden foundation, and causes the wood to rot and fall apart. This takes thousands of dollars to repair multiple times if your crawl space is not sealed.
Rotting foundation
When moisture and humidity enter a crawl space, it evaporates causing mold to grow.
Dirt floor
Exposed dirt floors contain moisture from the Earth that will find its way into your home, and evaporate causing damage to the home.
Dirt Floor
Dirt floors contain humidity which attracts pests to live there such as termites, cockroaches, ants, crickets, and many other pests which can also bring them into your home! Yuck!
CleanSpace
Along with protection from mold and rot, a dry crawl space will also be inhospitable to termites, cockroaches, ants, crickets, and many other pests that need excess moisture to survive. Mice and rats are deterred by the plastic vapor barrier, and flooding waters will be kept at bay.
