Higher Energy Bills
A home with a dirt crawl space costs more to heat and cool. The reason for this is damp air takes more energy to heat or cool and more energy used means higher energy bills.
Mold
Mold loves moisture. And mold loves to eat dead organic materials, like wood, paper, and cardboard. The bad news is most crawl spaces have lots of moisture, as well as wood and other organic materials for mold to grow on.
Mold
Mold also likes to eat dead insects and there are usually lots of those in the crawl space too. Vents in the crawl space provide an open invitation for insects and pests. Vents also let in moisture, creating the ideal home for mold.
Mold
What's worse is mold releases airborne spores that eventually make their way upstairs. Mold in your crawl space isn't good for your health or your property value. Nobody wants to buy a house with mold.
Dust Mites & Pests
Dust mites thrive in humid environments, so they love homes with a dirt crawl space underneath. Dust mites are microscopic parasites that live in your bedding, carpet, and furniture. Dust mite droppings float in the air and can trigger allergies and asthma. Other pests, like termites, spiders, mice, rats, and snakes love damp, dirt crawl spaces too.