How to choose waterproof materials for construction project

New waterproof materials are constantly being developed! Entering the market, the choice of building waterproof material is not the better the waterproof material, the better its function. In the choice of waterproof material, the appropriate waterproof material should be selected according to the design and practice. When choosing, materials should be selected based on the principles in this regard. The waterproof material has good performance, reliable quality and material stability, and requires good material storage and transportation. The construction is convenient and flexible, and the service life is long. The material price is moderate.

In short, in the choice of each material, according to the location, conditions, environment, building grade, functional needs of the project, select the appropriate materials, because each material has its own characteristics, due to different buildings, In order to get the best waterproof effect, the characteristics of various materials can be used well.

1, the choice of roof waterproofing materials.

The roof is affected by various comprehensive factors, such as mechanics, physics, chemistry, etc., mainly because the roof is exposed for a long time, directly affected by the atmosphere, freezing and thawing, thermal expansion and contraction, dry and wet changes, And some of the effects of sunlight, ultraviolet light, ozone, and the erosion and weathering of wind, frost, rain and snow, as well as some structural structural effects, temperature difference and force stretching of the waterproof membrane or film carcass during construction, so that the waterproof layer Under high stress conditions, it can cause premature damage to the roof.

Therefore, it is necessary to select a material having high aging resistance and requiring a certain degree of extensibility and high heat resistance. Then, in the choice of roof waterproofing materials, materials with characteristics such as polyester tire modified asphalt coil, EPDM sheet or asphalt linoleum should be selected.

2. Selection of underground waterproof materials.

Underground engineering is characterized by long-term wet conditions and not very good maintenance, and the temperature difference is relatively small. The waterproof material required is high in impermeability and elongation and good overall water impermeability. Flexible materials that are resistant to mildew, corrosion, and long service life are also required.

When using a polymer waterproof substrate, it is necessary to use a binder with good water resistance, and the thickness of the substrate should not be less than 1.5 mm, such as polyurethane, silicone rubber waterproof coating, etc., the thickness should not be Less than 2.5 mm. Usually, for each additional waterproof layer in the room, the cement-based inorganic rigid waterproof material is suitable.

3, the choice of waterproof material in the toilet room.

The area of the toilet room is generally small, and there are many yin and yang angles. The waterproof material selected for waterproofing engineering should be selected based on such principles. First, it is suitable for the change of the shape of the base layer and is conducive to the laying of pipeline equipment. Second, it is not water seepage. Sexual, seamless overall coating.

The purpose of this is to propose a small area of the toilet, a large number of yin and yang angles, a large number of pipes, sanitary equipment and other factors and a complex structure based on the ground, floor and wall.

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