If the roof is wet and it is impossible to lay waterproofing membrane, it is necessary to use a waterproof coating with strong adaptability. Roofing leakage material waterproofing membrane waterproofing membrane can be said to be the most frequently used waterproof material, with convenient installation and good waterproof performance. If the water leakage is not serious and the roof is flat, waterproof coiled material can be used.