(1).Sustain factor
No matter what sustained structure you
used. PC sheet’s ribs always must be acclivitous and down, PC sheet’s width
vertical with ribs, length is Horizontal with ribs.
(2).Acclivitous installation
Acclivitous installation, is easy and
convenient to flow out water, so the easy Acclivitous Angle is less than 5°.
(3).Top installation
In procedure of top installation, when
installing or cleaning, people should not stand on the sheet, it must have wood
panel or others on the frame works.
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