1507.2.9.3 Drip edge.
BC § 1507.2.9.3
A drip edge shall be provided at eaves and rake edges of shingle roofs. Adjacent segments of the drip edge shall be lapped a minimum of 2 inches (50.8 mm). The vertical leg of drip edges shall be a minimum of 1 1/2 inches (38.1 mm) in width and shall extend a minimum of 1/4 inch (6.4 mm) below sheathing. The drip edge shall extend back on the roof a minimum of 2 inches (50.8 mm). Underlayment shall be installed over drip edges along eaves. Drip edges shall be installed over underlayment along rake edges. Drip edges shall be mechanically fastened a maximum of 12 inches (304.8 mm) on center.













