Stains around roof top vents.
The roof was one layer standard 3 tab shingle about 10 years old. Gable/moderate slope.
House had soffit/gable/roof top venting. Insulation was loose fill about 6-9 inches. No moisture stains in attic, ventilation seemed to be adequate.
So what is causing the stains around the vents?
How would you report the scenario?
Would an active vent like a power vent be an solution? Or maybe adding more soffit vents. (There were no baffles installed but the insulation was not blocking the vents.
Thanks for the time.