The metal flashing is formed with a hook edge and cleated on 12 centers.
Sidewall flashing at roof lines.
We re going to install this step flashing here against the sidewall and the first thing we re going to do is let it run.
Another term for this is a step flashing.
We discuss the importance of keeping wood siding clear of the roof surface the need for flashing at the dormer side to roof intersection and the need for counter flashing at step flashing.
The horizontal part of the flashing will vary depending on the type of roof covering material.
You can see that i m letting it run past the end of the roof and past the ridge line.
Here s how to install it correctly.
It s kind of like a step so water hits it comes off and moves off the roof.
Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.
The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.
Except where walls are brick the vertical part of the sidewall flashing should extend up behind the exterior wall covering just like with headwalls.
Epdm flashing tape with a butyl adhesive backing will help.
Flashing is installed to surround roof features such as vents chimneys and skylights.
This article describes mistakes at roof dormer sidewall flashing and roof dormer sidewall coverings that invite leaks rot and insect damage on buildings.
Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot.
Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.
Step flashing should always be used where the roof deck meets a sidewall.
Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.
Flashing joints are lapped 6 in the direction of water flow.
A sidewall is a junction between a wall and a sloped portion of a roof.
The flashing should be partially exposed along the wall.
