What Is a Thermal Bridge?

The thermal bridge was also called the cold bridge in the past. Thermal bridge refers to the reinforced concrete or metal beams, columns, ribs and other parts in the envelope and other surrounding structures. These parts are called thermal bridges because of their strong heat transfer capacity, dense heat flow, and low internal surface temperature.

Common thermal bridges include reinforced concrete seismic columns around the outer wall,

Due to the low temperature of the internal surface of the thermal bridge, when the temperature is lower than the dew point temperature during the winter, water vapor will condense on the surface to form dew. After that, the dust in the air is easy to stick and gradually become black, so The mold grows. The severe part of the thermal bridge may even water in the cold winter, which has a great impact on life and health. ^[1]