Bye-Bye Heat Dome, Solar Panels Have Cooling Effect on Buildings
Posted by Adam Sewall in Tuesday, July 26th 2011

In light of the recent heat wave — er, heat dome — that has been blanketing the country, we thought it’d be fitting to share one of the interesting side benefits of solar panels: they can help keep your roof cool. Here’s how it works, in general terms:

Solar panels are typically installed on a rack that stands off against the roof. The resulting gap between the panels and the underlying shingles allows air to circulate around the array. This setup is good for the solar panels, which perform best in cooler temperatures. It’s also good for the roof, the ceiling and the residents inside.

It turns out that the gap and the panels create a thermal barrier that helps keep the inside of the building cool. Recently revisited by the Independent, a 2010 report confirms that buildings with rooftop solar panels are typically cooler than those without: …click here to read more