Flashing is dealt with as a priority in Salvo's job, especially around edges, shifts, valleys

https://simonemuj158.keystonescope.com/posts/how-artificial-roofing-roof-shingles-stand-up-to-snow-plenties-and-warm-waves

Flashing is dealt with as a priority in Salvo's work, particularly around edges, changes, valleys, and infiltrations where describing matters most.