Before & After Photos

This Bruington, VA client contacted us about repairing moisture damage in their crawl space. Moisture had caused mold and mildew growth, was absorbed in the insulation which held it against the floor joists, the material began to delaminate and fall away from the floor. 

All debris and insulation was removed from the crawl space, microbial growth was treated, the vents, sill plate, & rim band were sealed, the foundation walls were insulated with closed cell spray foam insulation and a dehumidifier was installed to control the relative humidity. The homeowners no longer need to worry about moisture damage in their crawl space and have the added benefit of warmer floors in the winter and reduced drafts in the home. 

Before: The foundation walls of this crawl space are created with porous cinderblocks, meaning they let water vapor seep through. Without proper encapsulation, the relative humidity is out of the homeowner’s control. During the wetter seasons, the ground outside the home is soaked with water each time it rains and eventually the moisture will find its way through these porous foundation walls, causing the relative humidity in the crawl space to rise with the temperature. 

After: The foundation walls of the crawl space in this picture have been covered and sealed with closed-cell spray foam. The moisture is no longer able to access the crawl space through the walls due to the foam sealing over the vapor barrier. The closed-cell foam becomes an air barrier and vapor retarder if sprayed to 1.5” or more. This solution will assist in keeping the relative humidity under control by blocking water vapor from the ground outside to enter, stopping mold or mildew from growing on any organic materials by cutting out the moisture they need to thrive. 

Successfully sealing a crawl space vent to control moisture and temperature