![]() ![]() But a large portion of it does-up to 95% or more. Now, we’ll be the first to tell you that not all of the heat bounces back. It keeps heating up because the heat energy is stored in the material, making it generate that heat back into the environment-in this case, the vehicle interior. It then hits the dash and that heats up as well. Why is that? It’s because the very items inside your car, and your car itself, will literally radiate heat. The inside of your car feels like an oven-reaching temperatures much higher than the 100º outside. What happens when you park it out in the open when the ambient temperature hits 100º? You can understand why radiant barriers work simply by considering the best place to park your car. The Quick Explanation–Where Do You Park Your Car? Something heated up by radiant energy will eventually begin to emit its own heat in all directions. Radiant heat is energy (from the sun or any other source) that is transferred without making actual contact. It keeps an object from becoming energized by UV rays and radiating its own heat. The word more or less gives it away-a radiant barrier is anything that reflects heat back to the source. A radiant barrier blocks “radiating” UV heat that would otherwise penetrate and heat objects and spaces like the inside of your attic. ![]()
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