Cold storage is mainly used for the freezing and refrigeration of food. It maintains a certain low temperature indoors through artificial refrigeration. The walls, floors and ceilings of the cold storage are covered with a certain thickness of thermal insulation material to reduce the heat transferred from the outside. In order to reduce the absorption of solar radiation, the outer surface of the cold storage wall is generally painted white or light color. Therefore, the construction of cold storage is different from general industrial and civil buildings, and has its unique structure.