Metal Roof Color Temperature – Color Matters Big Time
I used my FLIR infrared camera to determine the temperature of three pieces of metal I had painted three different colors.
The experiment was done at the end of May 2020 in central New Hampshire. I took the photos just a few minutes after solar noon. The strips of painted metal had been in direct sunlight for about 30 minutes to heat up. It was a cloudless day.
One of my FREE newsletter subscribers, David Andersen, had provided great information to ensure the temperature readings were accurate. He’s a level III thermographer and had been trained on how to take infrared photos. He pointed out that two things are important :
- the spot where the reading is taken needs to be a 1-inch by 1-inch piece of black tape. This gives true accurate readings between the three samples.
- the photos need to be taken in the shade so you’re not getting a sun reflection temperature.
I had my camera all set up and then used a cookie baking sheet to create temporary shade for a second or two to take each photograph.