The nice thing about roofs and solar panels is that the snow typically melts there first. Of course in some intense snowfalls it may cover your panels, but the other great thing is that snow typically slides off panels easily as there's not a lot of friction for the snow to get stuck on. You can learn more about this in our articles in our blog:

https://yupsolar.com/blog/solar-panels-in-winter-do-they-work/

https://yupsolar.com/blog/solar-output-in-the-winter-what-to-expect-and-how-to-optimize-it/