Indoor air leakage, duct discharge and condensation can wet an attic without bulk rain entry.
The short explanation
Indoor air leakage, duct discharge and condensation can wet an attic without bulk rain entry.
What to compare
Compare location, timing, weather or operating cycle, then open the matching Living House layer to see the plausible routes.
What would strengthen the explanation
A repeatable trigger and a physical route through the nearby assembly are stronger than appearance alone.
Next step
Document the original condition and choose the least destructive check that can separate the leading explanations.
Observe→Compare triggers→Repair source→Verify outcome
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