<p>Until recently, most green rooftop gardens were little more than variations on sedum mats on four inches of soil. Now, designers are creating cutting-edge green roofs that focus not only on critical environmental issue like heat, storm management, and ecosystem development, but also on the aesthetics, offering beautiful, livable, sustainable landscapes. </p> <p><i>The Professional Design Guide to Green Roofs</i> is a comprehensive exploration of rooftop garden design and the process behind it. It covers everything landscape architects and garden designers need to know to create a beautiful garden in the sky. </p> <p>With lush photography, international examples, and solid how-to information, this is an essential resource for all design professionals.</p>