Crawl Space Repair - Foundation Walls and Open Vents

The foundation walls of this crawl space are covered in efflorescence, a clear indicator of moisture infiltration. This occurs when water from the outside seeps through the porous cinderblock walls and pulls all the salts and sediments to the surface. Open vents lining the foundation walls allow outside air and moisture to freely enter the crawl space and affect not only the relative humidity in the crawl space but also the air quality inside your home.