Vented crawlspaces are the perfect environment for termites. Many crawlspaces in Delaware and Maryland are vented and most have the same problems. During construction debris like wood, cardboard and other organic materials fall into the crawlspace and are left for someone else to cleanup. The insulation contractor installs the builder grade 6mil poly as the vapor barrier but the workers are paid for how fast the work is completed not on the quality. The organic material begins to rot with the high moisture and becomes food for insects and mold. This becomes the open invitation for them to enter your home. With proper crawlspace encapsulation all this debris is removed and the vents are sealed and a 20mil liner is installed and sealed to prevent ground moisture from entering, a dehumidifier is used to keep the relative humidity in the optimal range to prevent mold, pest infestation, while also improving the comfort in the home.