Hello, Even though I have known for a while I haven't really thought of mentioning on here. In my brothers room next to mine he has mold behind the walls I think it is because the chimney is above his room and the water came in. It has been obvious over time when it has started to darken the walls and around the ceiling. I think is still there and has been for a few years, I have had ME for over 4 years. Is it possible there is a link?