Grey Mildew

[hasheel]

After spending 3 hours cleaning the exterior of my motor home, I was wondering if anyone knew of a way to keep that grey mildew from coming back?

[Terryallan]

Don't know how often you wash it. But the grew mildew is dust that turned. IF it is kept clean. It won't mildew as bad. I would suggest washing it every few weeks, and waxing it 2 time a year. You see that a lot when RVs are put on a perminate site.