In climate zones prone to ice damming code requires that a self adhering ice barrier membrane be applied directly.
Installing roof flushing.
How to install roof flashing against a wall.
Installing your roof flashing is going to be slightly different depending on the specific type that you re installing.
Install the starter course.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Start with the ice barrier.
Step flashing step flashing redirects the water back onto the shingle.
Step flashing for chimneys once the shingles have been installed lay the base flashing around the base of the chimney approximately 4 past each end.
Add the drip edge.
Install the step flashing.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.