Foundation Maintenance is an important, and often overlooked, part of home ownership. When dealing with expansive soils, the goal of the maintenance is to keep a consistent moisture content. Clay is the most common expansive soil in our area. As these soils change in moisture content, they will expand and shrink. When they are over saturated, they will expand, causing pressure on a foundation. As the soils become dry, they shrink. Clay can shrink up to 35% of its original wet volume. When this shrinking occurs, the soil shrinks under a foundation, leaving a void where the foundation can settle.
It is never too late to start a foundation maintenance plan. Sometimes a little maintenance can stop a basement from leaking, or prevent further movement.