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Researchers may have discovered an unintended benefit of solar panels. According to a 2011 study by students at the University of California at San Diego, solar panels can reduce the heating and cooling loads on your HVAC system by keeping your residential roofing system shielded from the sun’s heat.

This discovery has effectively debunked one of the most prevalent myths surrounding PV (photovoltaic) systems: installing solar panels can heat up your roof. Read on as our solar technology specialists at Spicer Bros Construction, Inc. explain how, in fact, the opposite is true.

How Do Solar Panels Work?

Residential roofing systems are exposed to sunlight for most of the day, making them an ideal location for the installation of solar panels. These panels are made of a photosensitive material that releases electrons when light hits their molecules. The electrons are gathered into a steady stream and they produce electricity.

Do They Heat Up Your Roof?

Many homeowners believe that because of how these panels work, they can actually heat up your roof. In truth, solar panels actually shield the roof from the sun’s heat. Researchers have found that homes with PV cells covering a large part of their roof are typically five degrees cooler than homes that do not have these cells. During the summer, this means that your air conditioner is working a little less hard to maintain a comfortable temperature. In winter, the solar panels can also prevent heat from escaping your home through your roof, helping you save a little bit of money; it’s a small amount, but it can add up with everyday use.

Get high-efficiency solar cell systems from Spicer Bros Construction, Inc., your trusted local roofing company and general home improvement service provider. Schedule an appointment for an in-home consultation by calling our representatives at (410) 546-1190 for Salisbury customers or (302) 703-6754 for Delaware customers. You may also fill out our online contact form to learn more about financing options for your project. We serve homeowners in Rehoboth Beach and Lewes, DE, as well as Salisbury, MD.