What should a professional see in the first handoff? The safest answer starts by preserving timing, location and trigger information rather than assigning a cause from one clue.
What this question is really testing
indoor moisture, outdoor water and heat flow can converge at the roof assembly with different seasonal patterns. The observation becomes more useful when it can be compared with air leakage condensation, exterior roof entry, blocked drainage, ventilation imbalance and localized duct leakage.
A useful next observation
Look for indoor air paths before assuming more ventilation is the answer. Record the result together with conditions that stayed unchanged so the comparison remains honest.
Safety and handoff boundary
Do not walk unsafe framing, disturb suspect insulation or work near electrical hazards. Active roof leakage, widespread decay or unstable materials needs qualified inspection. Include attic photos, outdoor temperature, snow or rain history, exhaust duct routes, insulation condition and the position of air leaks or roof penetrations.
