I just went with tint on mine, 5% back five windows and a 6 inch strip in the front window. And 35% on the drivers and passengers window. double 5% on the moon roof. It does keep it alot cooler in the car, it really helps when on the highway and the suns shining thru the drivers window. I got mine done because my wood has been bleached just a little on the dash. No idea or anyway to measure if it will stop it or not. Just check what your state laws allow. Tint on drivers and passenger windows is illegal in MI, unless you have a doctor's note.