Flashing, pipe boots, vent penetrations, and valleys are common places where Marietta roofs leak
https://pub-635949dacb8145658aeb73e7ad99c83d.r2.dev/local-roofers/marietta/the-small-roof-problems-that-become-big-ones.html
Flashing, pipe boots, vent penetrations, and valleys are common places where Marietta roofs leak, especially during wind-driven rain, making proper sealing and inspection important after storms.