Two ways to flash roof edges.
Proper roof flashing installation.
Proper installation of step flashing.
Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.
However when flashing crowne slate with its much larger 10 exposure the flashing piece would need to be 10 x 12.
Place it so the tab of the end shingle covers it completely.
The flashing integrates the roof cladding into the wall cladding to keep water out.
Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.
Secure the horizontal flange to the roof deck using two nails.
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.
Make sure to install flashing around the chimneys and walls.
To install the flashing piece on the first course place it over the end of the starter strip.
As a protectant flashing is placed anywhere on the roof s surface that requires extra protection.
Step flashings are to be installed one per course.
When you install roof flashing you will need to use a sealant.
Fasten loose nails and cover exposed nail heads with roofing cement.
How to install roof flashing against a wall.
These areas include anywhere there are intersections or joints such as edges around chimneys vents skylights roof valleys and soil stacks.
If nailed to both the flashing may deform under the pressure from shifting brick or wood.
Recaulk the joints between the roof and the flashing.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.
The roof deck flange of step flashings are to be fastened to the surface of each shingle in a position whereby the next course of shingles will cover up hide the flashing from view.
Step flashing redirects the water back onto the shingle.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
You will also need rake edge flashing for the sides of the roof.