The maintenance of historic buildings is a complex, expensive and more important a permanent task. This book is a work tool for planning the maintenance of historic buildings with the aim to keep costs low but still make sure the building stays and can be operated in optimal structural, aesthetical and technical state of preservation. The book is written for owners, landlords and curators of historic buildings as well as for tenants and occupants. It also offers the possibility for architects and engineers to add the service of supervision of historic buildings to their special services.