Why Are Most Roofs Dark

Brighter or lighter colors tend to reflect away not just light rays but.

Why are most roofs dark.

More likely insufficient attic insulation and poor roof ventilation create the problem. You probably know from elementary science that different colors respond differently to light and heat energy. Here are some points to consider. And the dark roof effect is the least effective where it is most needed.

If keeping heat out is your game however a dark roof color will work against you. The roof covers a huge portion of the exterior of your house and receives most of the direct sun rays. 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. Light or dark roofing in direct sun which is better.

What are those ugly black streaks on my roof. 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. The length of the sunlit day diminishes greatly during the part of the year when heating requirements are high and by. As such your roof plays the biggest role in determining how much of the sun s heating gets into your home.

Dark roofs may have a small snow melt effect but not a sizeable one. Similarly if your roof experiences winter problems like ice dams your roof color probably isn t the primary culprit.