Standing water in a crawl space will eventually evaporate, rise, and create condensation on the foundation when the humid air hits the cold air ducts. When condensation occurs, it can cause mold to grow, and can attract unwanted pests into your home such as roaches, rodents, and spiders. Our CleanSpace liner will lock away all moisture, and prevent mold growth and unwanted pests from deteriorating your home from the bottom up!