MOLD requires moisture to live. Many houses have damp basements as a result of water seeping through the porous cinder block walls. As the water table rises, additional hydrostatic pressure builds up and causes lateral pressure against your home's foundation. It is this pressure which forces water to seep continuously into your block walls. When the water is pooling at the foundation level of your house, capillary action, which is related to the adhesive properties of water, causes water to rise up above the level of the existing water table and to supply persistent dampness to foundation walls. This constant dampness is the perfect home for mold spores to grow in. Many companies offer an interior french drain to solve a home's basement water problems. This interior style solution has a number of drawbacks, one of which is that by design, water will pour through your home's foundation walls, guaranteeing that walls will be damp and hospitable to mold. An Exterior French Drain allows a waterproof Paraseal Membrane to be applied to the exterior of the home's foundation, which will keep your basement walls dry. By installing an exterior membrane and gravity foundation drain, dampness disappears and mold is unable to grow as it would in a typical wet basement wall. Eliminate the water on your exterior walls, and you will reduce the moisture content in your basement. It's really that simple.
Mold remediation should always begin with drying the foundation walls. If the source of water is not eliminated, mold will always reappear.