Welded Gutter Code

[miguelandrade]

Hello,

We have to weld a galvanized gutter of a metal roof using TIG. We had been asked to provide a WPQ and WPS for this process. Does anybody knows which code or stanard covers it?

Thanks

 

[Rputvin]

WPQ and WPS are the welder performance certification and weld procedure specification for ASME Section IX.

ASME A112.6.4 is probably going to be the closest you'll get, outside of a local code, for gutters.

I'm assuming you're aware of the risks around welding galvanized?

 

[CWEng]

AWS D9.1 can be used for sheet metal, and is relatively user friendly.

TIG isn't the most friendly process for using on galvanized metal though. Porosity is an issue. And I would 2nd Rputvin's comments about making sure you are mitigating galvanized welding risks.