It is a valid question that people have in their minds while installing a windshield in their cars. The car windshield sun shade which side faces out, bothers many car owners during installation time. The best way to put a windshield is to make the reflective surface face out as it helps to reflect the sunlight from the screen and, thus, keeps the car interiors cooler. The main goal is to reflect maximum light through the glass screen, and thus choosing the reflective surface to face out is indeed a better idea for the car owners who want to keep their car interiors cooler in hot climatic conditions.