every tool is a hammer
Far as I know, you still have to run 3" out the roof here in IL. Transition made by a smooth increaser 12" or more below the roof.Illinois code doesn't make you increase anymore. It used to, and some inspectors still make you do it, even if it isn't needed. I used regular purple primer and cold weather glue. You are right, I used the 45's because of the footing.