Proper Roof Flashing Installation
To install the flashing piece on the first course place it over the end of the starter strip.
Proper roof flashing installation. It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling. Two ways to flash roof edges. Step flashing redirects the water back onto the shingle. 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.
Details concrete masonry roofing wrb flashing. Install the step flashing pieces so that they can easily be replaced during a reroof job or else the damaged old. While roofing professionals occasionally use nails when flashing they must choose whether to nail to the roof plane or the vertical wall. Secure the horizontal flange to the roof deck using two nails.
When you install roof flashing you will need to use a sealant. Recaulk the joints between the roof and the flashing. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing. 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. How to install roof flashing against a wall. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. However when flashing crowne slate with its much larger 10 exposure the flashing piece would need to be 10 x 12.
The flashing integrates the roof cladding into the wall cladding to keep water out. Place it so the tab of the end shingle covers it completely. You will also need rake edge flashing for the sides of the roof. Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. One common method is to lay the edge metal under the eaves membrane and over the rake. Fasten loose nails and cover exposed nail heads with roofing cement. Make sure to install flashing around the chimneys and walls.
These areas include anywhere there are intersections or joints such as edges around chimneys vents skylights roof valleys and soil stacks.