We actually added window tint to the side windows and windshield of our VEGAS. Not sure if it helped UV exposure, but man, definitely cuts the glare while driving and the reflection of the dash in the windshield.
Also definitely cut the heat in the front.
About gave the tint company a heart attack trying to tint the windshield, but they got it with only a very minor scratch in the tint.
Definitely made driving the VEGAS much more ejoyable...