Roof Shingle Color Energy Savings

This is known as the albedo effect and many studies have documented significant energy savings from simply lightening the color of a roof.

Roof shingle color energy savings.

The industry has long held the assumption that white roofing because of how it reacts with surrounding air temperatures think about the idea that the color white reflects color rays while black. Brighter or lighter colors tend to reflect away not just light rays but. You probably know from elementary science that different colors respond differently to light and heat energy. Attic temperatures can vary as much as 20 to 40 degrees f which in turn can reduce energy consumption by 20.

Researchers from oak ridge national laboratory have found that most people save between 10 and 30 percent on their energy bill after installing cool roofs. The roof covers a huge portion of the exterior of your house and receives most of the direct sun rays. Lighter colors reflect heat and may help keep your home cooler although you have to take what some say about energy savings with a grain of salt. Your attic temperatures can swing by as much as 20 to 40 degrees which can increase energy consumption by a considerable 20.

Energy star certified roof products. One way to estimate how much energy you would save by installing a cool roof is by using the cool roof calculator. Additional cool roof costs include specialized materials and labor. Cool roofs can save money several ways including energy savings rebates and incentives hvac equipment downsizing and extended roof lifetime.

As such your roof plays the biggest role in determining how much of the sun s heating gets into your home. Tests at fsec also indicate that simply switching from dark to white asphalt shingles in a cooling climate can reduce peak cooling loads by 17 and seasonal loads by 4. Adequate ventilation and the quality of your home s insulation are what really determine its energy efficiency. What kind of savings can you expect from cool roof shingles.

Please remember the energy savings that can be achieved with reflective roofing is highly dependent on facility design insulation used climatic conditions building location and building envelope efficiency. Let the roofing store show you how shingle colors for residential roof installation can influence energy efficiency. Emissivity and how it relates to energy savings and cool roofs. The color of the shingles you choose for your build can have a significant impact on the building s energy efficiency.

The greatest savings resulted from using white metal roofing see table 2 18 shown at left. Darker colors absorb heat.