From the panel manufacturer. Every serious standing seam system publishes drawings for its own profiles covering eave, rake, valley, headwall, sidewall, ridge and penetrations. Those drawings are what a good crew works to, and asking which ones apply to your roof is a fair question to put to a company quoting you.
Get Metal Roof Cost Guide connects you with licensed local companies. We are not a roofing contractor and do not perform the work ourselves.
If any of these is missing from a system's published set, that is worth noticing.
how metal roofing is installed explains what each junction has to achieve.
As a comparison tool rather than an instruction manual. You are not going to install the roof, but asking which published detail will be used at your valley or your chimney tells you whether the company works to the system or improvises.
Improvised details are where metal roofs leak, and they are also where a low quote usually found its saving. what a metal roof costs installed covers what proper detailing adds to a price.
Manufacturers generally publish them openly for their own systems, since correct installation protects their warranty.
Not in depth. Knowing they exist and asking which ones apply to your roof is the useful part.
Ask what it does use. Some experienced metal crews have their own proven details, but improvising at valleys and walls is a different thing.
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