Lee Wallender is a home improvement writer of nearly 20 years and specializes in home remodeling, repair and maintenance. Lowe Larretta is former lead editor for Forbes Home, covering all things ...

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 ...