How does a sun screen help keep a car interior cool?

[jtvang125]

When sunlight hits the windshield doesn't most of the light gets turn into heat? If that's true and the sun screen being behind the glass, how is it helping to stop the heat buildup? Or am I mistaken?

 

[ElFenix]

Originally posted by: jtvang125
When sunlight hits the windshield doesn't most of the light gets turn into heat? If that's true and the sun screen being behind the glass, how is it helping to stop the heat buildup? Or am I mistaken?

doesn't turn to heat until it hits something inside that absorbs it. the shade reflects the light rather than absorbing it.

 

[Vette73]

Think radient barrier. Thats why the silve looking ones usually work better.

Radient barrier can also be installed in your house to help with the same thing. Ever notice that candy bars, pop tarts, etc.. have the silver like wrapper, same thing.