Flashed Into The Roof
Base flashing is one length of flashing that is bent along the length.
Flashed into the roof. Step flashing should always be used where the roof deck meets a sidewall. Pieces of step flashing are bent at an angle. Galvanized sheet metal is most common but aluminum and copper find occasional use in specialty situations. Continuous flashing is also called apron flashing because it acts a lot like an apron.
Base flashing is the solution for front walls. These problem areas include the edges of skylights and chimneys soil stacks vent fans and roof valleys as well as the intersection of the roof deck and dormer walls. These are the key types of roof flashing you need to understand. Roof flashing is sheet metal that prevents water from seeping into a home.
Flashing provides the extra protection these spots need. It is simply a piece of sheet metal usually aluminum or galvanized steel which is placed over joints in roof and wall construction to prevent water seeping into the house and causing damage. This ensures that rain always. On pitched roofs the high side of the chimney is the most vulnerable to water seepage compared to the sides and the low side.
The major cause of residential roof leaks is a fault in the flashing. They should installed with a height of at least 6 inches to protect from splashing water. Some roof features such as chimneys require two pieces of flashing. Some key points to remember.