The main cause of arch is often affected by large blisters on the floor, the following rainstorm did not close the window, the rain washed into the cup was beaten promptly immersed in the floor. Floor blisters, the floor volume increases,
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tech1uk causing the arch, this problem is often caused due to improper handling, its responsibility should be responsible for the water leak side. If the laying is dry season, trough tightened, when the ambient humidity increases, the floor swell with the ambient humidity increases, the floor tightly assembled together can not be extended, only upward expansion, causing arch.