Crawl Space Repair - Insulating Foundation Walls

The foundation walls of the crawl space have been insulated with closed-cell spray foam, with a two-inch viewing strip left uncovered for termite inspectors. This spray foam is applied at 1½ inches thick, making it an air barrier and vapor barrier. This helps to prevent any outside influence from affecting the relative humidity of the crawl space. The interior of the open vents lining these foundation walls have also been sealed with precisely cut foam board and sealed with can foam.