How To Install Flashing On A Porch Roof

Prepare the area where you will install the roof flashing.

How to install flashing on a porch roof. 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. Measure the length of the porch roof joint to determine how much flashing you will need. The metal flashing must overlap the material not the other way around. Then nail the new l shaped flashing under the builder s felt but above the fascia board.

The corner cut should be facing upwards. Apply a thin bead of silicone around the opening of the vent pipe area and lay the membrane in place. Next place your vent flashing on top of the membrane. Place the flashing between the joint of the house and the roof.

How to install porch roof flashing step 1. If you already have faulty flashing installed you. Lay the cut flashing down at the corner over a shingle that is already in place. Gently hammer the 45 degree cut around the corner of the porch roof seam.

Try to keep the nails as flush as possible to the edges. Begin by removing the shingles at the affected area and removing old flashing if present.