Eaveguard HE740916 Roofing Underlayment, 65 ft L, 3 ft W, Asphalt

Henry® Eaveguard® Self-adhered shingle underlayment provides a secondary line of defense to keep water that can get behind shingles from infiltrating further to help ensure the longevity of your roof. With direct-to-deck application, Eaveguard® is designed to offer protection against water penetration caused by wind driven rain or ice damming when installed in vulnerable areas of steep-slope roofs.