I've lived in this home much of my life. It is one of my parents homes. Built 68-70. Its 1650sqft and has only one small bathroom. It had plastic tile half way up the walls. I removed all tile and put sheetrock on walls and ceramic tile on floor and shower. My fiance painted it a dark brown color(good paint but it was from the ooops rack-so it was cheap and not to pretty) so I Kiltz the walls, added chairrail and painted the top with Glidden Satin Seafoam and the bottom a white semi-gloss. Thinking the paint was a good choice for easy cleaning. I also put anew fan in,too. It does the same exact thing. The Seafoam color literally runs down and collects on the molding. Its like the walls are melting. I shouldv'e did the whole thing tile or cedar-and made a mini-sauna. To expensive. My father said it has always done it and ocassionally he would have to use a sponge mop and remove a oily carmel/brown spots that form on ceiling. I've tried door open, window open, fan, nothing works. Im not gona quit taking hot showers-thats for sure.lol Ill keep trying suggestions if affordable.