This is by no means a stupid question. And my answer is the same as Cateye's - no problems.
There was a thread (or maybe two) on this topic several months ago. One concerned icing on the TM body - and yes, it does happen, but it is not hard to deal with. The other dealt with some of my hilarious (at least in retrospect) attempts to deal with the four fresh-water drain valves under the trailer after they froze. No damage was done, just as TM promises, but my dignity was hurt when I made the process MUCH harder than it had to be.
http://www.trailmanorowners.com/yabb...;threadid=1595
http://www.trailmanorowners.com/yabb...;threadid=1380
Bill