Quote Originally Posted by bobbyfairbanks View Post
I bet you have a leak in your roof or somewhere near that siding
Could be. Or could be condensation issues. Sweating houses can be a PITA. Do you have really high humidity inside, or in that location. Bathrooms, hot showers and no vents can cause that, as can many other issues.

I'd be inclined to think there is a leak based on the location and relative newness.