My neighbors from Mexico decided to back out the RV. I thought for sure I was going to lose my fence, you should see the ice in front of the fence as that area is shaded, but they somehow managed to back that thing out damage free. I probably should have videoed the event because that thing did a lot of freakish sliding.
I'd be worried about the ice build up on your flat overhead. Lots of stories on the news of them breaking under the weight of the ice