Ask the Builder: The Truth About Radiant Heat

Your roof shingles are radiating heat long after the sun has gone down.
Ask the Builder: The Truth About Radiant Heat
As seen in this infrared camera image, the infrared rays from the sun are cooking my roof shingles like you'd fry an egg in a pan. Tim Carter/Tribune Content Agency/TNS
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In just a few weeks, my email inbox will begin to overflow. Homeowners like you will be asking what they can do to cool down their attics, garages, houses and sheds. After all, the summer solstice is just weeks away. Here in the Northern Hemisphere, this means the sun’s rays have to travel through the least amount of atmosphere to wreak havoc.

I’m sure you’ve experienced the power of the sun’s infrared rays. Just months ago, it was still cold where I live in New Hampshire. Each morning I stand outside with my neighbors, watching our dogs play. On clear days in early March, the air temperature was below freezing but the sun was high enough in the sky to allow the rays to penetrate through our winter coats. At times it felt so warm that one might think it was 60 F instead of 22 F.

Tim Carter
Tim Carter
Author
Tim Carter is the founder of AsktheBuilder.com. He's an amateur radio operator and enjoys sending Morse code sitting at an actual telegrapher's desk. Carter lives in central New Hampshire with his wife, Kathy, and their dog, Willow. Subscribe to his FREE newsletter at AsktheBuilder.com. He now does livestreaming video M-F at 4 PM Eastern Time at youtube.com/askthebuilder. (C)2022 Tim Carter. Distributed by Tribune Content Agency, LLC.
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