bathroom humidity drip marks?
I recently repainted hallway bathroom with SherwinWilliams Bathroom paint --blue. The inner room of the BR, where toilet & bathtub are located, has a skylight. I am now seeing drip marks on the lower portion of the painted skylight 'walls' [not near the skylight itself--no leaks there] and some amber-yellow spots down on the edge of the BR ceiling (where the skylight wall connects to the regular bathroom ceiling). I'm confused that the spots are amber when the paint is blue but it looks related to the drip marks.
The rest of the BR has nothing like this. I am wondering if humidity is condensing up there where it is colder and dripping down? The BR vent fan is builder's grade and is kind of old. I am going to replace the fan with a new one with higher cfm, but is there anything else? Any way to 'seal' the skylight walls so if condensation drips, nothing damages the paint? Ideas welcome.