INALLY, today someone is here to have a look at what might have caused our massive bedroom mold problem (it hasn't grown back since we tore off the wallpaper and floorboards, cleaned it all up, and put a dehumidifier in there).
Right now "the architect" has his little hygrometer out, of course, to find out where there might be too much moisture. I believe that he is currently lecturing Damon on how it is bad to kip (tilt) our window because moisture will build up on the window and roll down into the wall. Thereby leaving our only method of airing out the room (an absolutely crucial part of living in a German apartment as you know by now) having the window wide open in subzero temps all winter. (Because with the no-circulation situation we have because there is no way to pull air through on the other side, we have to have them open way longer than normal.)
I'll have the architect pay my heating bill, then.