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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 detached garage in Chesterfield, VA needed insulation, so the homeowner called us to perform a free estimate and schedule the installation. We installed 14-inches TruSoft blown cellulose insulation with an R-49 value. A dam was built to contain the insulation and prevent it from falling into the storage deck.
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.
This Dewitt, VA crawl space is encapsulated with a 20-mil CleanSpace vapor barrier, closed-cell spray foam, a SaniDry Sedona Dehumidifier, R-11 along the perimeter of the crawl space, and an Everlast Crawl Space door.
As part of air sealing and insulating their attic, this home had several recessed lights or "can lights." These lights are a HUGE culprit of conditioned air loss in a home. To air seal these lights while protecting the insulation from the heat the housing can give off, we use rockwool can light covers that are sealed with foam.