https://www.pearltrees.com/staydryroof1/item775054662">https://www.pearltrees.com/staydryroof1/item775054662. A top quality roof covering will have them set up around the side of the roofline, where upright walls https://nelsonyjpk667934.blogdomago.com/38149842/the-best-strategy-to-use-for-stay-dry-roofing