https://www.openstreetmap.org/user/staydryroof">https://www.openstreetmap.org/user/staydryroof. A quality roofing will have them set up throughout the edge of the roofline, where vertical walls meet the roof incline, https://karimqccz724819.blogunok.com/39757941/the-25-second-trick-for-stay-dry-roofing