Proper roof wall flashing example.
Proper roof flashing.
Galvanized sheet metal is most common but aluminum and copper find occasional use in specialty situations.
Proper flashing around a chimney includes two layers.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight.
To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.
Open valleys have metal flashing to protect this critical area of the roof.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
Drip edges have two key purposes.
A drip edge is designed to take advantage of those forces and along with gravity direct water into the gutter.
Aluminum flashing is very popular for do it yourself.
Direct water away from fascia.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Here s a look at some general principles of roof flashing that will help guide you through a proper repair or replacement or even new construction.
Although roof flashing is occasionally fabricated from plastic roofing felt or rubber it is usually made of rust resistant metal galvanized steel aluminum or copper.
Roof sheathing underlayment roofing material roof intersections flashing details and ventilation.
All roofing systems are made of a number of different components.
Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.
A look at roof design.
The first is called step flashing.
Due to cohesion surface tension and other forces water droplets tend to stick to one another and to the surfaces they are on albeit slightly.
