Two ways to flash roof edges.
Proper roof flashing.
Step flashing should always be used where the roof deck meets a sidewall.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.
Fasten loose nails and cover exposed nail heads with roofing cement.
Details concrete masonry roofing wrb flashing.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
How to install roof flashing against a wall.
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.
These are the key types of roof flashing you need to understand.
Proper roof wall flashing example 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.
Base flashing is the solution for front walls.
Step flashing can be made with aluminum copper lead galvanized steel or stainless steel but most commonly it is aluminum or copper.
Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.
One common method is to lay the edge metal under the eaves membrane and over the rake.
This ensures that rain always.
Continuous flashing is also called apron flashing because it acts a lot like an apron.
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.
And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight.
Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.
Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps.
Small l shape flashing pieces must be woven into the.
Install an underlayment centered in the roof valley.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
Recaulk the joints between the roof and the flashing.
Recommended procedures of basic valley flashing installation.
The first is called step flashing.
Base flashing is one length of flashing that is bent along the length.
Step flashing step flashing redirects the water back onto the shingle.
Some key points to remember.
Some roof features such as chimneys require two pieces of flashing.
