https://www.brownbook.net/business/54713336/stay-dry-roofing">https://www.brownbook.net/business/54713336/stay-dry-roofing. A high quality roofing system will have them installed around the edge of the roofline, where https://adrealbjh228794.fitnell.com/80369443/some-ideas-on-stay-dry-roofing-you-need-to-know