Crawl space encapsulation is the process of sealing off a home’s crawl space from the outside environment. This usually involves installing a vapor barrier along the ground and walls, sealing vents, and sometimes adding insulation. The primary goal is to control moisture levels and improve air quality within the crawl space. An example of this would be lining the entirety of a crawl space with a thick, durable plastic sheeting and then sealing all seams to prevent moisture intrusion.
The practice of improving a crawl space is important because it can positively affect the overall health and longevity of a house. Benefits include reducing humidity, preventing mold and mildew growth, lowering energy bills, and improving indoor air quality. Historically, crawl spaces were often left unventilated, leading to moisture problems and structural damage. Encapsulation addresses these issues and creates a more stable and efficient building envelope.
