When I do a go-over, and the roof meets an adjoining (vinyl sided) wall, I temporarily remove what's necessary of the siding, install flashing and counter flashing like new with the re-roof, then re-cut the siding, and re-install into the re-installed J-channel. Am I a dying breed? Every roofer I've seen around here just butts the new shingles to the (half-buried) J-channel and caulks. It seems most people choose to go for a re-roof after they've already had a problem, and usually the leak is at the flashing. Now they pay a couple thousand for a (new) roof, and they've still got the same leak. How do you guys handle your re-roofs? Do they get new flashings?