I think when I used Tint Plus earlier this year, I did the windshield with Stratos 70 and Pinnacle 30 everywhere else (except the sunroof). The guy said that the sunroof was already tinted from the factory and if I wanted, I could tint it later. We got through the summer and I didn't notice a need for it. I did have it done on my prior cars though (tinted at G5 in Pasadena).