A detailed roof installation includes valley metal, kickout flashing, and counterflashing to guide water safely away.

https://docs.google.com/document/d/1RnKT12HQABegpxKexyOxM1kiwOUUme-GjUfofPfQ5gg/edit?usp=sharing

A detailed roof installation includes valley metal, kickout flashing, and counterflashing to guide water safely away.