"In winter waterproof coating construction, we must ensure that the indoor temperature is higher than 5 C, otherwise it will greatly affect the construction quality." Waterproof technical experts said that when painting, the waterproof construction master should paint in strict accordance with the temperature in the product description. In general, the ambient temperature of waterproof coating should not be lower than 5℃. It is an important project to pay attention to the use of cement and sticky bricks in house decoration. In winter construction, the mixed cement may fail once it is frozen. In addition, what is more serious is that if the temperature drops suddenly after the brick is pasted, the strength of cement will be seriously affected and the quality of the project will be threatened. Insiders pointed out that the sand used in winter construction and construction should be carefully screened and must not contain ice. When mixing mortar, the water temperature shall not exceed 80℃. When using cement, attention should be paid to heat preservation on site, or antifreeze should be added to ensure its strength.