Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.
Step flashing roof.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
The roof deck flange of step flashings are to be fastened to the surface of each shingle in a position whereby the next course of shingles will cover up hide the flashing from view.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Step flashings are to be installed one per course.
Item 831018 model 4916sp 30.
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Step flashing redirects the water back onto the shingle.
The remaining siding on the sidewall will overlap the step flashing and nail.