https://www.provenexpert.com/stay-dry-roofing6/">https://www.provenexpert.com/stay-dry-roofing6/. A top quality roof will have them mounted all around the edge of the roofline, where vertical wall surfaces fulfill the https://craigouyp268504.activosblog.com/38182210/indicators-on-stay-dry-roofing-you-need-to-know