I can not figure out why the sill plates are wet and the foundation is mostly dry. Condensation is running down the wall from the sill plate. This is in a crawl space in New Jersey very close to a marshland so the water table is high. The beam on foundation wall in the center of the house was real wet, the joists are all dry. The outer plates can not be seen, they have been covered with pressure treated but you can still see the it running down the block. Owner was a florida home inspector at one time. The house is around 90 years old. I have not been an inspector all that long and would appreciate a little help. Floors were well insulated. Temps were around 27 at night to 38 during the days lately. this is my first time on here and do not know how to put pics up yet.