To view Professional Roofing's August 2016 article, "It's good to be green," click here.

To view "17 Amazing Green Roofs Around the World," a collection of photographs shared by HGTV Canada, click here. To view Landscape Architects Network's "10 of the Best Green Roof Designs in the World," click here.

This Web exclusive information is a supplement to Rooftop photosynthesis.