Climate, heat, and red roofing
Climate and roof color will influence whether this roofing update is a good choice for you. So, surprisingly, the color of your roof does make a big difference. Red is considered a “warmer” color. As this category implies, warm tones (which also include oranges and yellows) make you think of “warm” things, like fire, the sun, and heat. In sunlight, these colors also attract heat.
Conversely, “cooler” shades (blues, greys, purples, greens, which may remind you of water, winter, snow, ice) deflect heat. Therefore, roofs in any of these heat-reducing colors fare better by staying cooler, even in regions with hotter climates.
Beyond the color, the shade of color you pick for your roof (think “light” versus “dark”) also influences how much heat it will draw. Lighter shades deflect heat best, while darker ones draw it in most, and are therefore much more energy and cost efficient. Compare both color and shade, and how they may either work in tandem, or against each other. (For example, a grey roof may be a cool tone, but a dark grey roof will start pulling more heat.)
On the other hand, if your house is built under significant shade from trees and foliage, or you live in a cooler-climate area, then heat-drawing colors may be less of an influencing factor for you.
For those who live in hotter climates with lots of sun, take a pause. If energy efficiency and staying cool in the summertime are concerns for you, you may want to reconsider installing a red roof.