Mold needs warm temperatures, high relative humidity and organic material to grow. In our area, crawl spaces create the perfect environment for this. We did a physical wipe down of the joists with an antimicrobial to kill and remove the mold growing on the wood.
Fiberglass Batts between the joists absorb moisture like a sponge. They hold moisture against the wood joists and fall and sag over time. Their paper backing and the wood floor joists are organic material that often has mold growing on them. We removed the old insulation and installed new, foam board insulation on the crawl space walls.
Previously, this crawl space had a 6-mil lightweight vapor barrier that was torn and even missing in places. We installed the CleanSpace Encapsulation System. The CleanSpace vapor barrier is a heavy-duty 20-mil liner that is perfect for crawl spaces that have service persons working on equipment, plumbing, or electrical, or for storage. It resists rips and tears, and is fastened to the walls and wrapped around piers sealing the earth off from the home.
This homeowner had concerns about water entering their basement, especially during the heavy rainfall the Virginia Peninsula and Richmond have been seeing. The solution was to install a complete basement waterproofing system. CleanSpace was installed covering the below-grade portion of the basement walls to direct any water infiltration into the drainage system. The WaterGuard Drainage System was installed to collect any water entering the basement that was directed downward by the CleanSpace and direct it toward the SuperSump System. The SuperSump System is a 1/3 hp sump pump, that pumps water out of the basement and away from the home. In these photos, you can see the bottom of the stairs in the basement. The before photo shows staining on the walls and a collection of silt and sediment where the floor meets the wall. these are clear signs that water is entering the basement. Since the basement is used for storage and laundry this poses a threat to the homeowner's valuables and washer and dryer. In the after photo, you can see the dark line of cement around the perimeter of the basement where the WaterGuard system has been installed and the bright white walls that are lined with CleanSpace.
A 20 mil vapor barrier is laid, seams are taped, and it is adhered to the crawl space walls, replacing the old and torn 6 mil vapor barrier. Spray foam insulation is installed on the crawl space walls and the sill plate, rim and band, and vents are sealed.
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