Bend it back so that it overlaps the corner flashing.
How to add roof flashing.
Cut some membrane material to seal between the vent flashing and the roof and cut an opening for the vent.
Begin by removing the shingles at the affected area and removing old flashing if present.
Install the step flashing before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof.
How to install step flashing with a wall corner step three.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Once even a small section of roofing cement fails you ll have a leak.
Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.
Once the shingles are installed lay the flashing about 4 inches past each end of the chimney.
Once you perform the step above use plastic roof cement under the base part of the flashing.
The metal flashing must overlap the material not the other way around.
Use roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Gaf mastering the roof chapter 13 flashing is used to seal and protects joints in a building from water penetration by direct the flow of water away from.
Next place your vent flashing on top of the membrane.
Ensure it sits flat and extends at least 8 inches above the shingles.
After this incise the first flashing to bend properly so that it can go round the front of the chimney its side as well as the base.
But it doesn t work that way.
Then set the piece down.
Hammer one nail to the.
