Fastening metal roof to existing metal roof

Tom Mraule
I have a cabin with a 12/12 pitch metal roof. I would like to attach a porch and wonder how you fasten new metal roof to existing metal roof without leakage and to make it look right.
Todd Miller
Isaiah Industries, Inc.
It depends a lot on the roof panel profile but generally this is not easily done. It would be best to try to drop down by 6" and separate the roofs by a vertical fascia if possible. If you wish, email me pictures of what you have. [email protected]
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