It's not just animals that love your crawl space. Bugs and insects also can invade these spaces and can cause major damage to your home. Termites are most active in moist wood. Termite damage to wood can be expensive to fix and takes away from the value of your home. Spiders, sprikets and ants are a few of the other little critters that love crawl spaces. And are always looking for an opportunity to come inside your home. There is nothing like finding a spider the size of a small dog in your shower first thing in the morning! Just eliminating the infestations won't totally cure your problem. You need to totally encapsulate the space to keep them out forever.