Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.
How to install wall to roof flashing with nails.
If siding on.
For sheer wall drive pairs of nails 6 inches.
How to install porch roof flashing.
Metal flashing also called roof flashing goes against a stucco wall to protect it from water damage.
Begin by removing the shingles at the affected area and removing old flashing if present.
How to install roof flashing against a wall.
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.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
Position the upper edge of each piece against the underside of the siding and attach the strips with a 6d.
Fasten loose nails and cover exposed nail heads with roofing cement.
Attach the upper fin of the flashing to the sheer wall or exposed wood framing at the building with 1 1 2 inch galvanized roofing nails and a hammer.
Step flashing is a piece of metal sheet bent square at 90 degrees.
Recaulk the joints between the roof and the flashing.
Materials needed for roof flashing where roof meets wall.
Measure the length of the porch roof joint to determine how much flashing you will need.
If you already have faulty flashing installed you must remove it.
Install your underlayment completely and your shingles up to where the wall begins so that the first piece of flashing or the corner flashing will rest on a shingle.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
For areas where the walls meet the roof you will need to use the step flashing technique but you will need kickout flashing in other areas.
Install one by two redwood along the underside of the siding from end to end at the wall.
Badly corroded flashing will need to be replaced.
It is important that you use the right method when you install flashing.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Step flashing redirects the water back onto the shingle.