New waterproof materials mainly include elastic asphalt waterproof coiled material, polymer waterproof coiled material, waterproof coating, sealing material, plugging material, etc. among them, waterproof coiled material is the most used waterproof material, which is mainly used for roof and foundation waterproof, with the characteristics of convenient construction and low labor cost. What are the advantages and disadvantages of the new waterproof material? Advantages and disadvantages of polymer waterproof coiled material. The advantages of coiled material waterproof include: convenient construction, short construction period, no maintenance after forming, no influence of temperature, small environmental pollution, easy layer thickness to hold according to the requirements of fortification plan, accurate material calculation, convenient construction site management, not easy to be cut corners, and uniform layer thickness, The stress of the base course can be effectively overcome during empty paving (the whole waterproof layer can be maintained in case of large cracks in the base course). The disadvantages of coiled material waterproof: for example, when the waterproof coiled material is measured and cut according to the shape of the waterproof base course in the waterproof construction, multiple splices are required for the base course with complex shape, and the bonding of the overlapping parts of the waterproof coiled material is difficult, because multiple splices affect the beauty of the waterproof layer; Moreover, complete and absolute sealing will become the main problem. The lap joint of coiled material has the greatest hidden danger and opportunity of water leakage; Moreover, high-grade waterproof coiled materials have decades of durability, but there are few matching adhesives in China. Advantages of elastic asphalt waterproof coiled material: the elastomer composite modified asphalt waterproof coiled material is a composite modified asphalt waterproof coiled material made of polyester felt as the tire base and coated with elastomer modified asphalt and plastic modified asphalt on both sides. Because it covers two kinds of coating materials at the same time, the product combines the advantages of elastomer modified asphalt and plastic modified asphalt, which not only overcomes the defects of poor heat resistance and rolling resistance of elastomer modified asphalt waterproof coiled material, but also makes up for the defects of poor low-temperature flexibility of plastic modified asphalt waterproof coiled material, Therefore, it is suitable for road and bridge waterproof engineering in severe cold areas in the north, as well as roof waterproof engineering in special climate areas such as high temperature difference, high altitude, strong ultraviolet and so on.