you need a real sheet metal worker. with 24 gage min slip flashed under upper metal set in water block or mp1 caulking .most of the time I use a z closure with upper metal hooked over to allow for movement / call a roofing contractor that dose metal roofs
JUST A NEW GUY I do have a 30 by 50 metal shop and a 22 by 22 and a small 12 by 12 lawn mower shed and thinking about building a new shop/party room maybe 30 by 30 with a loft this looks to be the place to learn what can be done. I do all my own work / I am a sheetmetal worker that works on...