attic condensation 5
https://sierra-wiki.win/index.php/Roof_Leak_vs_Condensation:_How_to_Tell_the_Difference_When_Water_Appears_on_Your_Ceiling
Attic condensation happens when warm, moist air from the house rises into a cold attic, leading to water droplets forming on surfaces. Over time, this moisture can cause mold, rot, and insulation damage, so proper ventilation and sealing air leaks are key to preventing it.