Causes for Foundation Problems – May 2014

Water is the main enemy in expansive soils problems. There is either too much water, causing the soil to swell, or not enough, causing the soil to shrink. Wet clay soil is the most serious threat since the swelling potential of expansive soil is much greater than the shrinkage potential. Drought conditions cause the supporting soil to pull away from footings and foundation walls. Leaving them with less support then settlement and cracking of walls and footing can occur. Once the soil pulls away from the foundation walls, this leaves an...

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