This Midlothian, VA crawl space was encapsulated at construction. However, this encapsulation did not deliver the results the homeowner was looking for. They began to notice a cat urine or ammonia-like odor in the home, the crawl space was also not as airtight as the homeowner would have liked.
The initial encapsulation included R-11 vinyl faced fiberglass batts attached to the walls and a 6 mil vapor barrier on the floor of the crawl space. The odor, the homeowner noticed was a result of moisture penetrating the porous crawl space walls and saturating the fiberglass insulation.
To remedy this, we installed R-10 Foamax rigid board insulation, 20 mil Clean Space Vapor Barrier, sealed the sill plate and rim & band with spray foam insulation and installed a SaniDry Sedona dehumidifier. This solution will help prevent moisture from entering the crawl space and will control the relative humidity in the crawl space.
Crawl Space Encapsulation
R-10 Foamax on Crawl Walls and 20 mil CleanSpace Vapor Barrier on crawl floor
Crawl Space Encapsulation with Rim & Band
Rim & Band insulated with Spray Foam Insulation
Crawl Space Encapsulation with Dehumidifier
SaniDry Sedona Dehumidifier with Condensate Pump and piers wrapped with 20-mil CleanSpace vapor barrier.
Before Crawl Space Encapsulation
R-11 Fiberglass insulation crawl walls and 6 mil vapor barrier on the ground
Before Crawl Space Encapsulation Pt. 2
Piers wrapped with 6-mil vapor barrier and R-11 vinyl faced fiberglass on walls.
Before Crawl Space Encapsulation Pt. 3
6-mil vapor barrier on crawl space floor and wrapped around piers. R-11 vinyl faced fiberglass on walls.
