Our continuous flashing between the vertical wall and exterior of the 1908 house and the beginning of the roof for the backroom roof, needs kickout flashing to redirect water at the end of the cotinuous flashing back to the roof so water can flow down the roof to the gutter.
Instead, there is a slope to the south, so water that rides along he flashing just falls to the ground at the south inside corner.
The roofer hired by Neil Kelly needs to return to fix this: No matter what slope I put in the dirt, this water stream during a storm will dig into it. I don't want to be required to add a drain here to take the water away: it should drain through the gutter and downspout.
https://www.iko.com/blog/what-is-roof-flashing-how-to-install-it/