Quote Originally Posted by DCSwann View Post
Hi, Tim! The top of the exterior wall is visible in the attic, under the roof, and it's dry. Attic insulation is blown in. There is a bathroom on that wall, and it does have an exhaust fan which I run during and maybe 15 minutes after every shower. Walls and ceiling have latex paint, and exterior wall also has latex (exterior) paint. I'll see about making some openings for observation, but not with a plumber! Thanks for the advice. Nell
Hi again Neil. In the attic did you see any discoloring of the roof wood decking at the area above the outside wall- water staining. If the blown in is cellulose does it cover the top of the outside wall plate? I long shot but have you looked in the basement for moisture evidence?