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Attaching aluminium roof sheeting with galvanized screws

I have a doubt, If we using galvanised self tapping screw for fixing the aluminium roof sheet is it acceptable ? If there is any corrosion issue ? Please answer.

Suresh Kumar
Mechanical engineer - Oman,Nimr
December 22, 2010

With no other information, my guess is that it is not a good idea. Steel beam, Aluminum roofing and galvanized fasteners.
Without looking it up, I think that the galvanize will go first.

James Watts
- Navarre, Florida
First of two simultaneous responses -- December 23, 2010

No, do not use them. Galvanized fasteners are not compatible with aluminum. You will create a galvanic reaction

Gene Packman
process supplier - Great Neck, New York
Second of two simultaneous responses -- December 26, 2010

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