Asphalt, wood shakes, slate and other overlapped roofings are fine until they meet an obstruction. Up against a dormer, a vent pipe, a chimney, they need flashing — a patchwork of metal sheets, and ...

Have you ever heard a contractor or other DIYer talk about "flashing" and wondered what they mean? Or maybe you've got a rough idea but need clarification on the number of flashing types available.