Step flashing size requirements vary according to manufacturer.
Step flashing at roofs height.
Manufacturers requirements can vary anywhere from 2 inches to 10 inches and you probably won t be able to see the sidewall flashing completely anyway.
Step flashing should be integrated with the drainage plane above for example overlap housewrap over it.
Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.
Once even a small section of roofing cement fails you ll have a leak.
Roof felt should be installed prior to installing the step and kick out flashing.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
If it does follow our first installation procedure.
A step flashing is a roof flashing that allows a roof to abut brickwork for instance when a lower height roof runs into a wall a roof meets a chimney or a conservatory roof meets the wall of a house.
Step flashing if made of metal should be galvanized steel at least 0 019 inches thick irc 2015.
But it doesn t work that way.
Before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof.
Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca.
The vertical side will be hidden behind the exterior wall covering material.
Install the step flashing.