What is the reason for the rust of colored steel tiles? 1, this is because the color steel plate itself is made of iron, but when it comes into direct contact with acid, alkali and organic solution, it will undergo chemical changes and produce new FeO2, which will lead to rust. Everyone should pay attention to this situation. If the color steel plate is excessively corroded, holes will appear, leading to water leakage.
2. For outdoor colored steel tiles, if they are in a rainy natural environment for a long time, or after long-term use, there will be different degrees of corrosion. Especially in rainy days, the rust on the top surface will be oxidized and decomposed, and the rain will flow away along the color steel plate, resulting in rust marks. After a long time, the top will corrode in a large area.
3. In addition, outdoor and top sunshine lasts for a long time, and ultraviolet rays are extremely strong. After a long time, ultraviolet rays will damage the electroplating paint on its surface to a certain extent, prompting its metal materials to contact with gas and moisture, thus producing catalysis. After corrosion occurs, if it is not treated in time or neglected, colored steel tiles are prone to water seepage.
Color steel tile roof 1 causes of water leakage, and the roof screws and fasteners are leaking. This kind of situation is more common, especially in two-layer color steel plate and one-sided color steel plate roof. During the construction process, the tapping energy is too heavy and too light, and the self-tapping rubber pad may deform, fall off or slot, resulting in dribs and drabs of water leakage on the roof, which will be accumulated according to the thermal insulation material, and more water leakage will occur over time.
2. The roof tiles are leaking. Water leakage caused by roof tiles is also common. In the rainy season, especially when the rainfall is too large, the splash of precipitation will cause a large area of water leakage according to the gap between the two colored steel plates under the roof tile. In order to avoid water leakage of ridge tile, Suzhou color steel tile is moisture-proof. I tell you, during construction, the length of the reverse side of ridge tile should be appropriately increased, and each tile wave position should be cut and glued.
3, color steel plate lap leakage. There is water leakage at the horizontal lap and longitudinal lap of color steel plate. If the tile wave of color steel plate is too low or the rainfall is too large, it is easy to cause large-area water leakage, and it is not easy to find the water leakage point. Once built, it is not easy to maintain, which is common in curved roofs. The reason is that the overlap between the two plates is too loose and the self-tapping is not sufficient, forming a gap.
4. The self-tapping position is incorrect. One of the key reasons for water leakage is that the self-tapping position is incorrect, and it passes through the steel purlin under the color steel plate, which directly produces holes. This kind of water leakage may not be obvious in the single-sided color steel plate roof structure without thermal insulation system. The main reason is that according to the contact position between the thick steel plate and the steel purlin, the precipitate will disperse immediately after leakage, and may not drop quickly.