Step Flashing At Roofs Height

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.

Step flashing at roofs height.

But it doesn t work that way. Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca. Install the step flashing. 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.

The vertical side will be hidden behind the exterior wall covering material. 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. Step flashing if made of metal should be galvanized steel at least 0 019 inches thick irc 2015.

Step flashing should be integrated with the drainage plane above for example overlap housewrap over it. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. 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. Step flashing size requirements vary according to manufacturer.

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. Before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof.