Product Description

The benefits of green roofs are many: longer roof lifespan, greater sound insulation, reduced heating and cooling system needs, and a cutback in storm water runoff. Green roofs decrease carbon dioxide and increase oxygen in cities, making them cooler in the process and reversing the so-called 'urban heat island effect.' In short, green roofs are the great green hope of many environmentalists, politicians, and architects interested in more efficient and environmentally aware buildings. From a design standpoint, however, there is less consensus. While some see the roof garden as a visual statement using plants, geometric lines, and sculptural elements, others believe concerns for sustainability should outweigh visual appeal. A green roof that combines aesthetics and mechanics has become the goal of many a landscape architect.

To address this quandary, the American Society of Landscape Architects (ASLA) commissioned renowned landscape architects, Michael Van Valkenburgh Associates in collaboration with the Conservation Design Forum to design a 3,300-square-foot green roof garden for its Washington, D.C. headquarters. In Green Roof Gardens, author Christian Werthmann uses this detailed case study to explain the history, methodology, and design process of green roof garden construction, providing a rich source of inspiration and technical knowledge for anybody interested in this simple solution to many of the environmental challenges we face today.

Product Details

• Amazon Sales Rank: #608405 in Books
• Published on: 2007-08-30
• Original language: English
• Number of items: 1
• Binding: Hardcover
• 160 pages

Review
This book has excellent graphics and color photographs. It is an up-to-date how-to volume that shows that it is possible anywhere, with the proper planning, to install a rooftop garden. -- Washington Post, November 3, 2007

About the Author
Christian Werthmann is an assistant professor of landscape architecture at Harvard University's Graduate School of Design. He is a former associate at Peter Walker and Partners.

Customer Reviews

Great technical guide for clients and designers
This book is perfect for readers who already know that green roofs are good for our planet, but are looking for technical information on how to build one. Product and plant guidelines and the construction process are marvelously detailed. It's also generous with photos and diagrams. This particular green roof demonstrates that they can be more than just sedum in planters on a flat roof--green roofs can be a building amenity and enhance the viewshed for nearby buildings as well. The book is very well written. It should be noted that the author is a German landscape architect and Germany leads the world in green roof design. An excellent resource for developers, real estate executives, building owners, and designers.

Green roof case study
This case study is primarily geared towards the client's requirements and satisfaction, rather than basic green roof benefits. For example, there is more emphasis put on employee/ human use of the roof over the traditional benefits that roof greening putatively confers. Although there are some interesting techniques employed, like the grating over the sedum plantings, it is quite clear that roof greening is still for the elite rather than us common folk. Considering this, the concept of roof greening still has a long way to go before it will become a truly 'sustainable' practice in North America. The ASLA intended this project to showcase their involvement in this arena, but we would all be better served if they would test/employ techniques that were affordable to the masses rather than the wealthy elite.

Terrific Case Study and Greenroof Overview
Exceptional text, supplemented with beautiful and informative graphics and diagrams. Very good book for anyone interested in Greenroofs.