Why choose to seal your Crawl Space?
Crawl space encapsulation sealing is the key to reducing moisture build-up and extending the life of your home. Because of the penetrations in the floor that separates your living area from the crawl space and because of leaks from your HVAC system, a crawl space is usually kept under negative pressure. In the summer, especially in climate like ours in Raleigh, the negative pressure draws moist air into your crawl space creating the ideal breeding ground for mold growth to occur.
Many homes built on crawl space foundations in the Southeastern United States suffer from poor moisture management. Some of the common symptoms of a crawl space moisture problem are:
These symptoms are most often noticed in the humid spring and summer seasons but can occur at any time of the year. Often, the heating and air conditioning contractor is the first person the residents call to deal with the problem. Typically though, the problem is not due to a failure of the air conditioning system; it results from poor moisture control in the crawl space.
For many decades, building codes and conventional wisdom have prescribed ventilation with outside air as the primary method of moisture control in crawl spaces. In the humid Southeast, however, ventilation with outside air only makes moisture problems worse.