Expansive Soils

expansive soils

When your foundation is dug out, the removed soil is backfilled into the empty space once the foundation is poured. Backfill behaves differently than “virgin” soil because it no longer has the tightly packed, watertight properties that undisturbed soil develops over decades and decades. When excess moisture enters backfilled soil, it expands and exerts pressure on your foundation walls. This is known as hydrostatic pressure, and it can cause serious damage to your foundation walls.

Foundation walls that are subject to pressure from expansive soils will bow inwards and develop cracks. If too much pressure builds up over time, the foundation walls could eventually fail. We can repair this problem with our wall anchor system, which will stabilize the wall by tying it to stronger soils and preventing inward movement.

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