Mine are white. A few years ago I painted them with white paint which was supposed to help protect from UV. In Florida I figured it might help.
So far so good. All of the plastic white items on top of the RV that I painted white remain in good condition. Plus after painting I have noticed that they stay much cleaner than they did before painted.
I'll guess it would make some difference depending on the color.
Go Vols!
Coachmen Mirada 310DS named "The Corporate Headquarters."
When camping I just tell clients that I am working at "Corporate Headquarters"