Add the drip edge.
Installing roof flushing.
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.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Water should run down the side of the flashing and be directed to the shingles instead of finding its way into the roof deck.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Steps for installing drip edge and step flashing.
Step flashing step flashing redirects the water back onto the shingle.
Install the starter course.
Start with the ice barrier.
Install the step flashing.
How to install roof flashing against a wall.