The Stainless panels are up to the bottom of windows. Ive had no problem with the stainless up keep. Certainly after traveling, especially in Rain, your going to have to wash the Coach. Sprinklers at some campgrounds will spray up on the stainless resulting in spots. When I first purchased my Coach, I washed it once a month as I store it outside. A little less now. I do have the paint waxed twice a year. Some touch up with detail cleaner from time to time. Still Love the Stainless.