Ya not sure what you can do but I would be concerned about it. I doubt their built for a heavy snow load.
A few feet wouldn't freak me out but 4 feet might.
There are a lot of full timers in here and I'm sure some of them have experienced snow. I'm sure that dealers can't always stay ahead of snow removal all the time. I did a quick google search and found this. It's pretty generic...
How much snow load can an RV handle?
An RV roof can generally support around 2 feet of snow pile-up. Depending on the model, an RV roof can withstand
250-300 lbs. However, this is not a set limit. The amount of weight your RV roof can handle depends on multiple factors such as the thickness, material, age, and condition of your roof.
Maybe find covered storage?
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide