Why Are Most Roofs Dark

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Why are most roofs dark.

The most common type is known as gloeocapsa magma also known as blue green algae. If keeping heat out is your game however a dark roof color will work against you. Light or dark roofing in direct sun which is better. As such your roof plays the biggest role in determining how much of the sun s heating gets into your home.

You probably know from elementary science that different colors respond differently to light and heat energy. The roof covers a huge portion of the exterior of your house and receives most of the direct sun rays. Here are some points to consider. Similarly if your roof experiences winter problems like ice dams your roof color probably isn t the primary culprit.

Because a roof is the primary barrier between the sun and the interior of a house it s reasonable to wonder how different styles and colors of roofing affect the amount of heat that is absorbed into the home. And the dark roof effect is the least effective where it is most needed. Brighter or lighter colors tend to reflect away not just light rays but. Dark roofs are great at absorbing heat which is super handy if you live in a cold winter climate and your primary goal is to keep heat in during the colder months of the year.

Although these dark spots and ugly black streaks on your roof may look like dirt mildew soot or mold what they really are is algae. More likely insufficient attic insulation and poor roof ventilation create the problem.