When you plan a new roof installation, the color may seem like an incidental factor. "I'll just use the color shingles the last roof had," you may think. But that's because you haven't been introduced to the shocking benefits that a white, green, or light-colored roof can provide to your budget and your comfort as well as to your carbon footprint. Here are three of the most critical ways that your roof color can change the world.
1. Energy savings
The lighter your roof is, the more it reflects sunlight. Even choosing a lighter color of shingle can save energy, but light gray and white are the most efficient. This is why white roofs are so popular in arid climates. Reflecting the light means absorbing less of it, which minimizes heat increase and in turn means your air conditioner won't use so much energy.
2. Urban heat island effect
Metropolitan areas produce a lot of extra energy, which often translates into a lot of extra heat. It can be five degrees warmer in the city (or more) than in the surrounding countryside. The heat absorbed by black pavement and black roofs only adds to this climate disruption. If you install a white roof, on the other hand, that's one step down the road to minimizing urban climate disruption and doing away with the urban heat island effect. You can make an even bigger difference in your city's climate by advocating for lighter roofs to neighbors and acquaintances.
Did you know that a light-colored roof can even last longer? When black roofing material absorbs light and heat, it expands. When it cools down at night, it contracts. This cycle causes cracking, warping, and other wear to the material. Because light-colored roofing materials don't get as hot, they don't suffer such severe differences in size, so the wear develops more slowly. Consequently, white roof materials may need less frequent repairs and replacements compared to those required for similar roofing materials in a darker color. This can save you money, but it also adds a bonus environmental benefit: less roof replacement means less manufacture, packaging, transportation, and disposal of roofing materials.
As you can see, these three types of effects demonstrate the enormous difference that roof color can make. And though your business's roof won't mitigate the heat island effect of your entire community, it's a step in the right direction and may inspire others in the area to lighten their roofs as well. For more information, contact Davis Bros Roofing or a similar company.