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Do window shades help with heat significantly?
(lemmy.world)
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this post was submitted on 14 Jul 2023
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When the windows are dark, they absorb heat and they get warmer. The heat from those warmer windows mostly rises up outside the car. A little will go inside.
When the windows are clear, light passes through and everything else in the car absorbs some and gets warmer. The heat from those warmer surfaces is trapped inside the car, so the air inside just gets hotter and hotter. That's the greenhouse effect.
That's why silver tinting works best - it blocks the light without absorbing much. On the other hand, if you turn a light on inside, it becomes a mirror in the wrong direction.
Also they block UV rays. Helps protect the interior.