Crawl Space Repair Before & After Photos

We replaced the 6-mil vapor barrier in this crawl space with a 20-mil CleanSpace vapor barrier. CleanSpace is overlapped and sealed at all seams, wrapped and sealed around all piers, and attached to the foundation walls about 6 inches above outside grade. 

Sealing the crawl space off from the earth's moisture helps to prevent water vapor from the earth from rising into the space and increasing the relative humidity. 

Moisture infiltration in this Midlothian, VA crawl space has resulted in damaged and fallen insulation and microbial growth. In the living space, the homeowner is experiencing cold floors and drafts in the winter and humidity in the warmer months. 

All of the debris and old, damaged material is cleaned out of the space. The vents, and any penetrations through the foundation wall to the outside are sealed. Then a CleanSpace vapor barrier is installed. The vapor barrier is overlapped and sealed at all seams, attached to the foundation wall, and wrapped and sealed around all piers. Next, our spray foam technicians will apply closed-cell spray foam insulation to the foundation walls, insulate the rim band, and install a dehumidifier to control the relative humidity. 

We replaced the vapor barrier within this Midlothian crawl space. The problem with the existing vapor barrier was that it had many gaps and holes within it, allowing the earth's moisture to rise into the crawl space. The moisture that becomes trapped within the crawl space will raise the relative humidity levels, leading to condensation in certain temperatures, and even mold or mildew growth. We replaced this inadequate liner with our own CleanSpace Light vapor barrier. The CleanSpace Light is a 10mil liner that covers the entire dirt floor of the crawl space, gets wrapped around each pier, and is mechanically fastened to the foundation walls six to eight inches above outside grade. A two-inch viewing strip is left at the top of the foundation walls for termite inspectors. This high-quality vapor barrier will help to reduce the earth's moisture from affecting the relative humidity of the crawl space, and it gives a bright, clean aesthetic to the crawl space.

This crawl space had issues with mildew/mold, falling insulation, an ineffective vapor barrier, and moisture concerns in the home. We removed the old insulation and vapor barrier, treated the mildew/mold, installed a new vapor barrier, applied spray foam insulation on the crawl space walls, sealed all the vents, the rim and band, and sill plate, and insulated behind the crawl space door, then installed a dehumidifier to control relative humidity. 

This crawl space had moisture issues and the homeowner complained about the floor creaking. We found that the crawl space had moisture entering through open crawl space vents, the exposed earth, and through porous block walls. 

The homeowner opted to seal the crawl space, remove the old vapor barrier and insulation, install a new vapor barrier and seal it at the seams and along foundation walls, sealing all vents, and insulating the foundation walls with closed-cell spray foam. And finally, a SaniDry Sedona Dehumidifier was installed. This system helps to seal the crawl space from outside influence including moisture, which had caused much of the damage in the crawl space. The dehumidifier controls the relative humidity, helping to prevent future mold growth.