https://peterjackson.mee.nu/where_i_work#c2746">https://peterjackson.mee.nu/where_i_work#c2746. A high quality roofing will have them set up around the side of the roofline, where vertical walls fulfill the roofing https://siobhanucwk919229.spintheblog.com/39903876/getting-the-stay-dry-roofing-to-work