Verb: The movement of heat across an object that is more conductive than the materials around it.
Thermal bridging is the movement of heat across an object that is more conductive than the materials around it. The conductive material creates a path of least resistance for heat.
Thermal bridging across wooden studs in a wall is a major source of energy loss in homes and buildings. This thermal bridge can lead to higher utility bills. To combat the problem of thermal bridging in traditional homes, cover the studs with continuous insulation.