This book deals with both passive and active methods of controlling the environmental performance of buildings in hot tropical climates such as Malaysia. In these climates the building fabric plays a crucial role in determining the indoor environment and maintaining reasonable thermal comfort. Useful and practical examples from local case studies are used to illustrate solutions. While the book is of a technical nature and based on academic research, the language is suitable for both students and the general public. The book offers a significant contribution towards the move to more sustainable, energy efficient and 'green buildings. It provides building designers with practical and simple solutions that are based on a sound understanding of building physics.