Moisture behind mattress? (Cold caught us)
We've traveled in our C class for a few years but haven't been in a situation where it's cold for multiple days. This morning I discovered moisture behind the mattress, likely because we were in 70° y...
Forum Discussion
If you don't mind input from a non-expert, I would say you are on the right track. As joelc pointed out, the mattress insulates the exterior surface allowing it to be cooler, yet it provides no vapor barrier. My concern, since there may be 5 people in the rv, cracking the roof vent may be inadequate. I think a couple inches open on the vent and perhaps a window open as well.
