Depends on many things but if it's many inches of wet heavy snow.. POSSIBLE. if it's a couple inches or just light power no it won't.
Consider this. on my class A 2x a year I walk all over the roof with mop (Well long handled van wash brush) Bucket, Hose, Spic and Span and my size 12 gun boats. I'm 300 pounds shower weight so about 315 on the roof... So far the only holes in the roof are the ones that the maker put there (A/C, Vent lines. Air vents, that kind of thing )and one of them is gone (Long story it's for a sat antenna feed)
