Some key points to remember.
Flashed into the roof.
Continuous flashing is also called apron flashing because it acts a lot like an apron.
This ensures that rain always.
Some roof features such as chimneys require two pieces of flashing.
Base flashing is one length of flashing that is bent along the length.
Galvanized sheet metal is most common but aluminum and copper find occasional use in specialty situations.
They should installed with a height of at least 6 inches to protect from splashing water.
These are the key types of roof flashing you need to understand.
The major cause of residential roof leaks is a fault in the flashing.
Pieces of step flashing are bent at an angle.
Flashing provides the extra protection these spots need.
Flashing installed on the high side is called head flashing while installations on the low side is called apron flashing.
On pitched roofs the high side of the chimney is the most vulnerable to water seepage compared to the sides and the low side.
Base flashing is the solution for front walls.
Roof flashing is sheet metal that prevents water from seeping into a home.
Step flashing should always be used where the roof deck meets a sidewall.
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.