How do you stop a bathroom from extreme moisture? After we shower, our bathroom is dripping wet from all the moisture. We have tried every type of fan there is and nothing helps. We leave the windows open and that doesn't help. We cannot hang pictures because they get mildew from the moisture. We're constantly having to paint our vent cover because it starts to rust after a while. We also have to touch-up the paint because it starts to peel. We were told about 5 years ago it was because our bathroom was old and we needed to teardown the walls and add what I think is called greenboard. We had them tear the walls and add the greenboard, but that didn't work. Hope you can help us with this problem. Our home was built in 1957 and we live in Southern California.