Roofers and chimney installers use thin, flexible plastic or metal sheets, known as flashing, to prevent water from seeping into cracks, joints, and edges where the borders of the roof and other vertical surfaces meet. Flashing is often used to direct water away from chimneys, pipes, skylights, vents, valleys, and walls.
Although vinyl and PVC flashing exist, professionals who install and repair chimneys usually prefer aluminum, copper, galvanized steel, stainless steel, and zinc alloy since metals are more durable than plastics and last longer. A professional might use several types of flashing to create the best seal: For example, they might use one long sheet (continuous flashing), staggered pieces along the sides (step flashing), peak-shaped pieces along each side (saddle flashing), or pieces overlapping other pieces (cap flashing).
At Chimney Sweeps of America, our team has the knowledge and experience to install or replace these and other types of flashing during a new construction or chimney repair job. For more information or to schedule an appointment, call today.