This text studies the science, technology and services that relate to the comfort of humans and the environmental performance of buildings. The major topic areas include climate, human comfort, energy supplies and conservation, heating, ventilation, lighting, sound insulation, acoustics, electrical supplies, water supplies, water treatment, sick buildings and green buildings. Topics are arranged for easy reading and learning and the text assumes a minimum experience of science and mathematics. The emphasis on an environmentally sound approach to the design, construction and performance of buildings makes the book an important reference for students and practitioners at all levels of study and professional practice. This enlarged edition is presented in a larger format with new text, illustrations and references. There are enhanced sections on human comfort and environmental issues such as sustainability, energy performance and global warming. The theory and technology associated with new approaches to building regulations for energy conservation and noise are appropriately updated. Waste water and its treatment is a new topic which is supported by appropriate science and technology.