You continue this process around the length of the chimney cutting each step flashing to fit.
Installing l flashing on roof.
Flashing is installed to surround roof features such as vents.
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.
Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge.
Begin by removing the shingles at the affected area and removing old flashing if present.
Completing a professional grade step flashing installation is important.
Step flashing is installed where the roof and the side wall meet to defend against water penetration.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Step flashing can be purchase pre molded into the l shape or flat.
The top piece that bends around the chimney is left unattached.
Step flashing on roof peak.
4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.
Bend the corner flashing tightly around the corner.
Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.
This how to video explores proper roof flashing installation for shingle roofing applications.
If you purchase the flashing flat you will have to mold each piece yourself.
Roof shingle over step flashing.