For any of you with enclosed trailers. Maybe sometime this weekend have a look at your roof. We're in the highway trailer business,and let me tell you,we've been cleaning roofs for days. Only a few inches of ice will de-arch your roof. Once that sag is there water will always collect and leaks will follow. Try and push off big slabs after you've smacked them with a big broom or flat side of a steel square shovel. Try and stand on a ladder or edge of the trailer if needed,but not in the middle of the roof. Also be careful of your nice LED lights so that they don't get swept away. Be careful and HAPPY NEW YEAR!