Cold weather can have a major impact on your concrete foundation. When the ground freezes and melts, it causes the soil to heave and contract. This is called the frost heave cycle. Ultimately, this cycle can have a negative impact on your foundation because it causes instability in the soil. If the temperature falls below 40 degrees for three consecutive days, the likelihood of foundation damage increases.
Frost heaving is caused by freezing temperatures that can damage structures in two ways. Cold temperatures cause ice to freeze beneath the concrete foundation, producing frost heave. Frost heaving is the movement of the soil due to the formation of ice lenses. Ice lenses are long crystals formed by layers of ice within the ground. The other way that the foundation can be damaged is by the ground collapsing, caused by thawing ice lenses. In order for frost heave to occur, there must be freezing temperatures, water, and frost-susceptible soil. All three conditions must be present. The process involves the following steps:
There are a variety of repair methods used by foundation contractors. Contact a foundation repair professional