Solar panes are very self sufficient, in most instances. That is one of their best qualities.
Some solar panels are installed to be elevated on a stand to get more solar gain. I see many people doing that, and I chose to not elevate mine, because I didn't want to have to remember to put them down before I drive. To make up the difference, I added more solar panels to the roof. I therefore get the same amount of solar gain as if I had fewer panels but had them elevated.
When the panels lie flat, they are a bit more prone to get dusty or dirty. Occasionally, I need to wash or dust the panels to make them as efficient as possible.
I have a ladder on the back of my motorhome, as most folks do. I don't mind climbing up, but when I get up top, I feel slightly unsteady. I found that if I take a walking stick up, then I have really good balance, and can get the panels dusted or washed.
While on the roof I check all the roof caulking and make sure there is no other damage.
For now the panels and the roof look good!