Builders need to dig below the frost line to lay the foundation.
Строителям нужно копать ниже линии промерзания, чтобы заложить фундамент.
Definitions
The frost line, also known as the freezing depth or frost depth, is the depth in the ground below which the soil temperature remains at or below freezing for a significant period of time, typically during winter. It is important in construction and agriculture as it affects the placement of foundations, pipes, and plant roots to prevent damage from freezing temperatures.
