<http://schema.org/description>
"To be really eco-friendly, you want your roof to be cool, so you&amp;#039;ll need one with reflective properties and the best insulation value possible. So what are some of your options when it comes to roofing materials?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/home-improvement/construction/green/10-green-roofing-options9.htm>