Derek Worthing BSc, MPhil. (York) is a Building Surveyor and was formerly a Principal Lecturer and Head of the School of Land and Property Management at the University of the West of England, in Bristol, before taking up a research and teaching post at Uppsala University in Sweden. He now works as a consultant, a visiting lecturer and a guest editor for the International Journal of Building Pathology and Adaptation. He is the co-author of Understanding Housing Defects (also published by Routledge). He is also the co-author of the textbook Managing Built Heritage: The Role of Cultural Values and Significance. Nigel Dann BSc (Hons), MSc, MCIOB, MIOC is a Chartered Builder and was formerly a Senior Lecturer and Researcher at the University of the West of England, Bristol, UK. Currently he works as an online academic at University College of Estate Management and as a consultant and builder in France. He is the co-author of two other textbooks: House Inspector and Understanding Housing Defects (both published by Routledge). Roger Heath FHEA, FRICS is a Chartered Building Surveyor with wide experience in both the public and private sectors. He was a partner in a multidisciplinary practice before running his own building surveying practice as a sole principal. For many years, he has been a Senior Lecturer in Building Surveying at the University of the West of England, Bristol, UK. He is the co-author of Understanding Housing Defects (also published by Routledge) and two other textbooks.