Water entering your crawl space cause significant damage over time and should be dealt with.
A crawl space without a vapor barrier can produce enough moisture to create mold and other problems for the homeowner.
Water can also enter your crawl space from outside the wall, usually by a poorly sloped yard or poor evacuation of rainwater from the house by downspouts. Water can also enter the space through leaks in pipes or from plumbing fixtures in the house.
Standing water in your crawl space or basement can lead to humidity and fungal growth. Unchecked, standing water can also yield to structural damage that impacts the stability of your house.