Colored steel plate is not unfamiliar to us. It is common in construction sites. Now we usually build storage houses, but its thermal insulation performance is poor, and some colored steel plates will leak. What are the reasons for the leak? Let's get to know it with Jinan Coloured Steel Plate Factory.
1. External forces such as wind and rain cause long-term tremor of colored steel roofing, long-term wear and tear at nail holes and iron seams, and rust when rainwater meets. Then wear and regenerate rust, more and more serious.
2. Why does the rubber pad leak when the color steel plate tapping nail has rubber pad? 1. The rubber pad has been destroyed by the excessive force of the self-tapping nail in the construction. 2. Rubber cushion aging fast, soon lost the waterproof effect.
3. The main reasons for the deformation of color steel roof are: the large span of roof, the long time, the water accumulation in the middle, the greater gravity in the middle, the more variable the number of rainwater, the more serious the roof collapse. Coloured steel plate with mineral wool roof, mineral wool has water absorption effect, encounter rainy days, roof leakage of rainwater all gathered in mineral wool, weight increased. In summer, when the roof is high temperature, the sudden heavy rain causes the temperature of the color steel plate to drop sharply, and the color steel plate to shrink rapidly, resulting in the deformation of the color plate and the loosening of nails.
4. Why does weatherproof sealant leak? Weatherproof sealant must shrink when it solidifies. When it shrinks, it may separate the rubber from the frame. If there is dust in the frame, this situation will be more serious. The ageing of weatherproof adhesives is accelerated by the long time high temperature on the surface of coloured steel plate. The metal materials are expanded and cooled many times, and the weatherproof adhesives lose their efficacy quickly.
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