Then set the piece down.
How to add corner roof flashing.
Begin by removing the shingles at the affected area and removing old flashing if present.
Cut some membrane material to seal between the vent flashing and the roof and cut an opening for the vent.
Next place your vent flashing on top of the membrane.
Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.
Beyond the dormer and cut the top section along the dormer edge.
Bend it back so that it overlaps the corner flashing.
Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge.
Ensure it sits flat and extends at least 8 inches above the shingles.
There are two good ways to handle corner flashing.
Bend the flap down and nail along the top edge.
The metal flashing must overlap the material not the other way around.
The first bending two pieces and caulking the joint photos 1 3 is the most common because you can do it on the spot with the flashing at hand.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Hammer one nail to the.
Most flashing is 8 inches wide.
Move the piece of wall or roof edge flashing either way as necessary so one end extends 16 inches beyond the corner of the wall or the roof sheathing.
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.
4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.
How to install step flashing with a wall corner step three.
Apply a thin bead of silicone around the opening of the vent pipe area and lay the membrane in place.
