How to install step flashing with a wall corner step three.
Flashing roofing installation.
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 metal trim that fits over joints where two sections of roof meet.
Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in.
It helps direct water away from the meeting points and keeps the roofing dry.
Hammer one nail to the.
Nail it in place with two nails one.
Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet.
Bend it back so that it overlaps the corner flashing.
Flashing should be installed underneath new shingles to prevent water damage.
Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Even if caulking is used the roof will have to be re caulked often to avoid leaks if the flashing isn t installed correctly.
Typically flashing is installed using roofing nails and roofing cement.
Step flashing step flashing redirects the water back onto the shingle.
Ensure it sits flat and extends at least 8 inches above the shingles.
Now notch the first step flashing so that it will bend to go around the chimney front and side as well as at the base.
How to install roof flashing against a wall.
Roofers sometimes poorly install flashing over the shingles instead of underneath which compromises their water resistance.
In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation.
The flashing should overlap the edge of the roof by one inch to help direct water.
