I have about an inch on roof of 23B. It is also under a tree that is dripping ice and leaves. I had the trailer level but have tilted it to lean forward so ice will run down front when it melts. It...
I keep or layton TT tipped to the rear and the left mostly for the AC but also for snow and ice and run off. Its at the back of the trailer then. Im lucky in that we have a big enough building to keep our 5th wheel in during the winter.