What is crawl space encapsulation?

Crawl space encapsulation is a process where a heavy-duty vapor barrier is installed over the floor and walls of a crawl space to seal it off from outside moisture and air. This method helps prevent mold growth, wood rot, and pest infestations by controlling humidity levels under the home. Encapsulation often includes sealing vents, installing a dehumidifier, and sometimes adding insulation to improve energy efficiency. The process can improve indoor air quality and protect the structural integrity of the house.