Sandwich Panels Screws Position

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Sandwich Panels Screws Position

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Fixing the screws for what? The foam or the metal?

What type, brand, style metal roof is going over the top?

Eric Novotny
2019-02-01 17:10:24.825926

Hello,

for roofing sandwich panels (PIR CORE), contractor is proposing to fix the screws in the Through/Valley; but to the best of my knowledge; the roof piercing shall be at the crown/crest only to avoid leakage threats, I have searched a lot for a final proof to this but I couldn't find, also the manufacturer doesn't have any recommendations for this.
I hope you can provide me a final answer with a proof document for this issue.

Abdul Barry Ashraf
2019-02-01 16:52:49.751721

Thanks for attention,
It is roof sandwich panels Trapezoidal sheets of corrugated outer sheet 0.5MM GI (45/250), 100mm PIR core, and flat liner 0.5mm GI.
And I am asking for position of primary fixation of panels to the roof purlins (using self drilling screws)

Abdul Barry Ashraf
2019-02-01 18:47:02.896872