Laminated glass used for windscreens and tempered glass usually used for side and rear windows both block uvb radiation.
Uv laminated car windows.
The problem though is that windshields only protect the front side of your face.
And toyota switched to laminated glass for the front windows of.
This exposure may prove especially damaging to long distance drivers.
The side window of your car is made out of a different type of glass tempered glass.
Side and rear windows which usually have only a single layer of tempered glass may only block about 65 percent of incoming uv rays.
Uv rays can pass through clouds and glass.
Laminated glass is made from laminated plastic between two layers of glass which is known to block 98 99 of all uv light.
Some automakers like hyundai and kia are already using higher spf glass not only because it protects against uv rays but also because it helps cool down the car and thus improves fuel efficiency.
However uva transmission depends on the type of glass.
South korean automakers hyundai and kia use window glass with an spf between 44 and 48 in those vehicles they assemble in the u s.