Hi, I live in MA, a couple of months ago I took the paneling off my partially finished basement walls. I insulated, had heat pipes recessed into the wall, had wallboard hung and the entire room plastered. About a week and a half later there was a terrible smell that I assumed was a mouse that died in the walls because I closed them up. About 3 weeks after plastering I had the room painted. The smell never went away but changed to a smell that wasn't as bad but seems to be an obnoxious, musty but hard to describe odor.
It's almost 3 months later and it still smells. When I open windows or run a fan the smell gets worse. The only thing that helps is running a dehumidifier although it never goes away completely. I checked for all the signs of bad wallboard (the stuff from China)but none of those characteristics are there. This room cost me $7,000 and now no one wants to use it because it stinks. Any help would be greatly appreciated.