The last two decades have seen enormous advances in the technology and application of building sealants. This book provides essential reading for anyone connected with building sealants in the twenty-first century. It covers a wide range of subjects related to building sealants ranging from how to choose sealants and how to determine the key sealant properties and joint design for various applications to specific application tips, along with a forensic section on how to determine the causes of sealant failures.