Step Flashing At Roofs Height

Step flashing should be integrated with the drainage plane above for example overlap housewrap over it.

Step flashing at roofs height.

Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca. Roof felt should be installed prior to installing the step and kick out flashing. Install the step flashing. If it does follow our first installation procedure.

It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner. Step flashing if made of metal should be galvanized steel at least 0 019 inches thick irc 2015. Once even a small section of roofing cement fails you ll have a leak.

Step flashing should be extended at least 4 inches up the wall from the roof deck and at least 4 inches out along the roof deck 2015 international residential code irc. Also before you start installing your flashing you need to look to see if the wall in question has a corner on the roof face as in the image below. But it doesn t work that way. The vertical side will be hidden behind the exterior wall covering material.

Before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.