Here is just a little of the mold that was growing in this crawlspace. The mold covers most of this board and will only continue to grow and get worse as time goes on. Mold is a very serious issue and needs to be taken care of as soon as possible, especially in a crawlspace. The air from a crawlspace cycles around the home, so even though it may not seem like a big deal, the mold spores will eventually disperse throughout the home.