Recently, the term “thatch” has come to he used in a restricted sense which belies the wide diversity of natural materials that have in the past provided indigenous roof coverings for Scotland. This lack of vernacular sensitivity has been exacerbated by the use of alien materials and imported construction techniques. Such a combination of factors has led to considerable loss of local character and traditional building forms.

This is not a new phenomenon: it is, rather, the continuation of a process which started at the beginning of the last century when “alternative” roofing materials such as slate and tile became more readily and economically available. Consequently, many roof forms changed in appearance and now it is only with careful examination and interpretation of the remaining built evidence that these changes can he traced. Surviving examples of Scottish thatch have, there-fore, a significant place in Scotland’s inventory of historic buildings and should be cherished accordingly.

This Technical Advice Note sets out to present sound guidance on the topic and is intended for use by all those likely to encounter this aspect of Scottish traditional building where information is scant. Rooted in Dr Walker’s academic research the Note develops the authors’ analysis and interpretation of a considerable number of Historic Scotland grant-aided thatching projects around the country. It offers, therefore, a unique insight into the variety of historic Scottish thatches and thatching techniques.

Through promoting a greater understanding of the various materials which have been used – and how they were used – owners, practitioners, planners, decision-makers, education training providers and others can benefit from the guidance. Through this shared insight, it is hoped that one of Scotland’s richest and most varied vernacular techniques can he more widely appreciated.