In Specifications for Building Conservation, the National Trust draws on a range of case studies and specifications to provide a much needed guide to specification writing for building conservation. Although traditional building accounts for approximately a quarter of all buildings in the UK, the old skills and understanding required for their care and maintenance have been increasingly eroded over the last century. As the largest heritage charity in Europe, the National Trust has a first class reputation for high standards of conservation and care, and in this three volume set, the Trust brings together a remarkable pool of expertise to guide conservation professionals and students through the process of successful specification writing. This first book focusses on the materials used for the external fabric, detailing successful approaches employed by the National Trust at some of their most culturally significant sites. A range of studies have been carefully selected for their interest, diversity and practicality; showcasing projects from stonework repairs on the magnificent Grade I listed Hardwick Hall to the re-thatching of the traditional cottages of the Holnicote Estate. Complete with a practical Conservation Management Plan checklist, this book will enable practitioners to develop their skills, allowing them to make informed decisions when working on a range of project types. This is the first practical guide to specification writing for building conservation and the advice provided by the National Trust experts will be of interest to any practitioners and students involved in building conservation, both in the UK and beyond. Profits generated from the sale of this publication will go to the National Trust Building Apprenticeship Scheme. This provides placements for traditional skills at National Trust properties.