https://share.evernote.com/note/59a0defc-841a-72b6-b513-de34670ab411">https://share.evernote.com/note/59a0defc-841a-72b6-b513-de34670ab411. A high quality roof covering will certainly have them mounted around the side https://finnianeykr803143.bloggadores.com/38427354/the-greatest-guide-to-stay-dry-roofing