It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
How to install wall to roof flashing with nails.
If you already have faulty flashing installed you must remove it.
If siding on.
How to install roof flashing against a wall.
Prepare the area where you will install the roof flashing.
Step flashing redirects the water back onto the shingle.
How to install porch roof flashing.
Step flashing is a piece of metal sheet bent square at 90 degrees.
Measure the length of the porch roof joint to determine how much flashing you will need.
There are various ways to do roof flashing depending on which part of the roof you are flashing.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Fasten loose nails and cover exposed nail heads with roofing cement.
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.
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.
Position the upper edge of each piece against the underside of the siding and attach the strips with a 6d.
It is important that you use the right method when you install flashing.
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.
Materials needed for roof flashing where roof meets wall.
Begin by removing the shingles at the affected area and removing old flashing if present.
Badly corroded flashing will need to be replaced.
For sheer wall drive pairs of nails 6 inches.
Install one by two redwood along the underside of the siding from end to end at the wall.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
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 preferred over continuous flashing for roof flashing where the roof meets the wall.
Metal flashing also called roof flashing goes against a stucco wall to protect it from water damage.