What cause Moist Ceiling Drywall and Stained Wall Drywall? I live in a a moment ago constructed house and theceiling and...

I live in a a moment ago constructed house and theceiling and wall drywall in the corners of the shower stall are moist and stained. This is an outside wall.
What color should I paint my other 3...
Answers:    I agree near #1 you have a poorly insulated wall. I also presume your fart fan is out of commission properly or is too small
Ideas for Forth of Junly Decorations?
The moisture on the ceiling and walls in the corners of a shower wall indicate that you are not exhausting the humidity from the room or, if the walls be poorly insulated, you may have cold nouns against the back of the drywall which will produce moisture to condensate much more in that nouns.