We have the same problem with ice / snow building up on the windows
, spare tire , step , belly band , hitch ,roof and propane
tank cover. The only solution we found is to wait for warmer weather or move to a warmer location or park the trailer in a heated structure . As we speak , I can not gain entry to my trailer because the door is froze shut . We are expecting a heat wave next week with temps in the mid 30's so I will clean up the ice when it warms . Hope you find a good solution.