4. Roofing and gutter junction steel sandwich panel color steel sandwich panels and gutters should adopt lap sidewall coupled approach. Lap length not less than 120mm. Roof slope value should consider rainwater and construction conditions, the general color steel sandwich panel roof slope is not less than 1/20 and not more than 1/7. Less than 1/20 slow drainage, high water drainage downstream slope. It is greater than 1/7, since the plate surface more slippery, construction workers walking roofing sheet handling inconvenient and unsafe.
5. Row plate sign size regulations, perpendicular row of boards, panels take on the slab direction sign size 1220mm, a width dimension of the actual plate is generally 1 218mm ± 2mm. Length steel sandwich panel is generally 6m. Although the color steel sandwich panel production can be any length, but does not consider the expansion factor equivalent temperature difference caused by the upper and lower surfaces of the steel sheet, plate too long, on the surfaces of the steel plate at a temperature effect causes the occurrence of bending deformation.
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