The majority of roof leaks occur at flashing points.
How to apply metal flashing roof.
For exposed fasteners avoid over tightening the fastener.
Nail it in.
Measure the length of the porch roof joint to determine how much flashing you will need.
Use your neoprene washer head screws to secure the metal to the sheathing.
If siding on.
Fasten the base of the vent into place with galvanized roofing nails.
Most professional roofers can easily install a flashing membrane on the flat open space of a metal roof and then secure it.
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.
Lift the shingles slide the drip edge underneath them and position it so that it extends over the gutters then replace the shingles and push down to seat the drip edge.
Take a second piece of flashing and set it down in place.
It s very important to make sure that you grab the z channel that s below and make sure that you re in the outside leg of the z channel.
I m going to install one between each panel directly in the center.
Begin by removing the shingles at the affected area and removing old flashing if present.
The metal flashing must overlap the material not the other way around.
To prevent this water penetration flashing forms the intersections and terminations of roofing systems and surfaces.
Ensure it sits flat and extends at least 8 inches above the shingles.
With the end wall flashing in place i use stitch screws to attach it to the z trim and to the gable trim.
How to install porch roof flashing.
Next place your vent flashing on top of the membrane.
Bend it back so that it.
Apply a thin bead of silicone around the opening of the vent pipe area and lay the membrane in place.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Bend the corner flashing tightly around the corner.
Apply roofing cement when installing drip edge on an existing roof.
Space the screws about 12 in 30 cm apart.
How to install step flashing with a wall corner.
Coat the flat part of the flashing that sits on the deck using a putty knife.
