https://www.freelistingusa.com/listings/stay-dry-roofing-3">https://www.freelistingusa.com/listings/stay-dry-roofing-3. A top quality roofing system will have them set up around the edge of the roofline, where upright https://bushrantmi307388.verybigblog.com/38412781/facts-about-stay-dry-roofing-uncovered