Sue Roaf is famed for her approach to design and her awareness of energy efficiency. Here she reveals the concepts, structures and techniques that lie behind the realization of her ideals. By using her own house as a case-study Roaf guides the reader through the ideas for energy efficient design or 'eco design'.

This third edition, a follow up to the best selling original, includes new chapters on powering houses using renewable energy: wind, micro hydro and earth coupling buildings and heat pumps. As well as information on low impact materials and eco community design to ensure full coverage of the latest aspects of sustainability. It is an excellent comprehensive reference for architects, designers and their clients, as well as self builders, who wish to help make sustainable design a reality.