Are window awnings effective from blocking sunlight radiation heat from room?

The problem is my rooms windows are facing direct sunlight from 13:00 to 19:00 and in summer it really heats up the room even if outside temperature is below 20 degrees C (68 degrees F). I installed windows films and In result, sunlight doesn t heat up rooms curtains, but the window itself does heat up like... show more The problem is my rooms windows are facing direct sunlight from 13:00 to 19:00 and in summer it really heats up
the room even if outside temperature is below 20 degrees C (68 degrees F).
I installed windows films and In result, sunlight doesn t heat up rooms curtains, but the window itself does heat up like radiator.
So I’m planning to instal external window awnings but the question is what kind of awning I should get?
What color and thickness should be best?
How effective it is?
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