Coloured steel plates should be placed on sleepers or other cushions, and should not be directly contacted with the ground. If placed outdoors, it must be completely covered with waterproof cloth, especially aluminium-zinc steel sheets, which will blacken
after entering water between plates, so it must be covered with waterproof cloth. If there is water or mist between steel plates, the steel plates must be separated one by one, and the surface of the steel plates must be wiped with clean soft cloth
and placed in a ventilated place to dry them.
Coloured steel sheets should be stacked away from other exposed steel, such as steel bars, in order to avoid the rust on these steel sheets falling on the color steel sheets, and attachment on them is difficult to remove, resulting in rust spots, penetration of steel sheets.
When stacking the steel plates, each stack should not exceed four boxes. No other heavy objects can be placed on the steel plates. It is strictly forbidden to step on the upper and foot. Lighting boards should be stored separately. Steel plates and other articles should not be placed on them.
Insulating cotton and wire mesh should be placed in temporary shed. When unconditionally, it must be padded on the ground, so that the insulating cotton and wire mesh do not contact the ground directly, to prevent dampness, and all the above and around must be covered with waterproof cloth.
When the steel sheets are placed on the roof before installation, they must be as close as possible to the roof. It is strictly forbidden to place them on the installed steel sheets so as to avoid gravity concentration and crushing the steel sheets. The steel sheets left on the roof after installation on the same day need to be stacked in bundles to be bound so as not to be blown away by the gale.