[flybouy]

Originally Posted by BamaRam

Camping in low 40s temperatures. The front roof vent is sweating onto the bed, leaving a wet spot.

I checked around an the only other condensation I can find is on the door and windows frames.

Thinking of using foam sheathing cut to fit the vent hole to block warm air from collecting in the vent cavity.

Will this work?

Also remember this when storing: You should keep a vent cracked when storing the camper. It's essentially a tightly sealed box like a large refrigerator. A S&B house has a much larger volume of air. Typically you door at home gets opened several times a day. The attic is ventilated and windows, doors, outlets, etc. leak air from outside. The camper is just the oposite.