The solution to rotting sidewalls is a small piece of bent metal called a kickout flashing at roofing suppliers which simply directs all that water away from the wall.
How install step flashing against a siding.
Install a reverse peak flashing for the other side of the roof so the two wall edges overlap in an x nail step flashing at a peak so the roof side extends over peak flashing on the roof.
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.
With step flashing you do a little flashing then.
Step flashing protects the interface between a roof and a wall.
Small flashing pieces must be woven into the shingles as you work your way up the roof.
Bent into an l shape.
Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
The first piece of step flashing needs one bend so that it laps cleanly over the corner flashing installed in the previous step.
Then sink one nail into the sidewall to hold the step flashing in place.
Galvanized sheet metal bent at a 90 degree angle i e.
Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.
Install step flashing so that it can be.
This flashing is typically field fabricated from a sheet of 26 ga.
Install the step flashing.
Make sure the caulk joint between these two pieces is bedded evenly.