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The old crawl space door has been replaced with a new door that does not warp, rust, or rot. A friction fit insulated interior door is installed before the exterior door is put on to keep out outside air and moisture.
This vented crawl space in Charles City, VA had falling and damaged insulation, a torn vapor barrier, high relative humidity, and mold growing on the joists. The vents and rim band were sealed and insulated, the sill plate was sealed, a vapor barrier was installed, and spray foam insulation was applied to the walls.
To control the heat and cold impacting the room on the other side of this knee wall space, we installed rigid foam board insulation. This will reduce the heat transfer between the living space and the attic, leaving the living space more comfortable throughout the year.
The ground cover in this crawl space was a 6-mil, a similar thickness to a trash bag, it is easily ripped and displaced. Because it is unsealed and has tears, the 6-mil ground cover allows moisture from the earth to affect the crawl space raising the relative humidity, damaging insulation, and causing microbial growth.
After removing the 6-mil, we installed a 20-mil heavy-duty vapor barrier called CleanSpace, and is similar to the thickness of a pool liner. CleanSpace has a built-in Antimicrobial called UltraFresh. When we install the vapor barrier, we overlap and seal all seams, seal the liner to the walls 6-8 inches above outside grade, and wrap and seal all piers. By sealing the CleanSpace at all of these points, we are able to isolate the crawl space from the earth's moisture.
This homeowner had concerns about water entering their crawl space. At our inspection one of the concerns, we found that the existing vapor barrier was not sealed, allowing moisture in. As part of the solution, we installed a 20mil Heavy-duty, Vapor Barrier with UltraFresh Antimicrobial built-in, called CleanSpace. We ran it up the walls sealing it and leaving a 2" viewing strip for a termite inspection and sealed and wrapped all the piers.