Why are Vents in a crawl space such a big problem?
Building codes required vents to be placed in crawlspaces beneath homes during the construction phase. Since then, building officials have realized this requirement is incorrect since vents allow hot and humid air to flow promoting condensation, wood rot and mold growth. In winter months, open vents allow cold frigid air to enter crawlspaces and flow unrestricted into the upper levels increasing heat loss and energy inefficiency. Building codes are changing. Soon a vented crawlspace will be a thing of the past. Keep in mind, sealing a crawlspace vent is just one of the two necessary steps toward improving energy efficiency and indoor air quality. The other vital step is encapsulating your crawlspace – separating your home from your moisture-laden soils below. Advanced Building Solutions offers both the Cleanspace Encapsulation System and Crawlspace vent/door covers for a complete and permanent solution.
