Report "I'm getting condensation leakage from the vents in the roof. This is on a ducted system, and it's leaking from the two vents closest to the main blower unit up in the ceiling. It's very high humidity here lately, and the leak usually starts around mid afternoon. Up in the ceiling you can see the drops of condensation forming on the under side of the main blower unit, and also all along the large insulated air ducts. I've got the thermostat set to 24deg, it's usually 30 - 34 deg outside. When I check the temp of the air coming out of the vents it's about 11 deg. Changing the thermostat makes no difference to this"