Small l shape flashing pieces must be woven into the.
Proper roof flashing.
And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight.
Base flashing is the solution for front walls.
Recaulk the joints between the roof and the flashing.
Recommended procedures of basic valley flashing installation.
Fasten loose nails and cover exposed nail heads with roofing cement.
Step flashing step flashing redirects the water back onto the shingle.
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.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Continuous flashing is also called apron flashing because it acts a lot like an apron.
The first is called step flashing.
One common method is to lay the edge metal under the eaves membrane and over the rake.
Some roof features such as chimneys require two pieces of flashing.
Details concrete masonry roofing wrb flashing.
How to install roof flashing against a wall.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
Step flashing can be made with aluminum copper lead galvanized steel or stainless steel but most commonly it is aluminum or copper.
Base flashing is one length of flashing that is bent along the length.
Step flashing should always be used where the roof deck meets a sidewall.
Install an underlayment centered in the roof valley.
Pieces of step flashing are bent at an angle.
Some key points to remember.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.
Proper flashing around a chimney includes two layers.
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.
Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.
This ensures that rain always.
Two ways to flash roof edges.
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.
