https://blogfreely.net/staydryroof/2o3fu8cnw2">https://blogfreely.net/staydryroof/2o3fu8cnw2. A top quality roof will have them mounted throughout the side of the roofline, where vertical wall surfaces meet the roof https://nanaauxx804329.aboutyoublog.com/49033567/4-easy-facts-about-stay-dry-roofing-shown