Tag Archives: roof


The White House Goes Solar

The White House Goes Solar

During the oil crisis of the late 1970’s, Jimmy Carter installed 32 solar thermal panels on the White House to set an example for Americans. At the dedication ceremony, Carter stated, “In the year 2000 this solar water heater behind me, which is being dedicated today, will still be here supplying cheap, efficient energy…. A


White Roofs: The Cool Roofs

It’s no surprise that white roofs triumph over black ones when it comes to mitigating climate change, but as a recent study points out – on economics at least, white roofs also beat out green roofs. “Both white and green roofs do a good job at cooling the building and cooling the air in a city, but


Green Buses Get Green Roofs

Green roofs are one of the latest trends in sustainable building, and for good reason: they substantially improve energy efficiency (they can reduce heat loss by 34% in the winter lower heat gain in the summer by 84%), and also clean the air through photosynthesis, by absorbing CO2 and producing oxygen. So it only seems natural


Solar: The Great Payback?

The most common question I hear when discussing the value of solar is to ask: “What’s the Payback Period?” Don’t answer this question!! The payback period does have some advantages in that it is a simple thing to calculate and is intuitive. However it is a lousy method for valuing things that have a long


SunRun Wants Utilities to Innovate Rooftop Solar

As the cost of distributed solar, like rooftop solar, continues to become cheaper for home and business owners, utilities are getting wary, worried that distributed solar will hurt their bottom line. Sunrun CEO Ed Fenster says that to thrive such utilities should take a page from telecom companies, which changed their business model from entrenched


5 Insane American Eco Rooftops

As we move further into the early years of the 21st century, there is a growing consciousness of the need to create more sustainable systems to maintain our society. Natural resources have for too long been exploited and utilized with little regard for posterity. Our cities and towns require large amounts of outside support, but


How To: Build A Solar Roof

A green roof is a roof which can either be partially or fully covered by plants. It generally constitutes a waterproof covering where vegetation is planted over. The green roof is different from a rooftop garden in the sense that the latter uses containers for the plants while the waterproof covering of a green roof


Facebook Slaps Massive Green Roof on New HQ

Facebook has the green light from Menlo Park’s city council to build a huge second campus that connects to its headquarters in Silicon Valley. The company says its new 433,555-square-foot building will blend into the landscape, thanks to an extensive green roof that covers most of the very long building. Designed by award-winning architect Frank Gehry, the goal for the white stucco


RE-volv: Crowdfunding Community Solar Installations

Andreas Karelas founded RE-volv in 2011. He started the organization, he says, “out of a sense of frustration felt by many of us working for clean energy. The change isn’t happening fast enough and if it’s going to happen now, we’ll have to do it ourselves. There’s a huge opportunity here to mobilize people who