https://peterjackson.mee.nu/where_i_work#c2746">https://peterjackson.mee.nu/where_i_work#c2746. A top quality roof will have them installed all around the edge of the roofline, where vertical wall surfaces meet the https://berthatkiu858020.theobloggers.com/46083025/stay-dry-roofing-for-dummies