Mold #1
Mold growing on rotted wood due to the high moisture levels
Mold#2
This mold will release mold spores into your house which can be detrimental to your health
Rotting Wood
One of the things that excessive amounts of moisture can cause is wood to rot which will invite mold growth and also damage the foundation of your home
Mold #3
A properly encapsulated crawlspace would keep moisture too low for mold to grow
Mold #4
Overall an encapsulated crawlspace is a health crawlspace