Vernacular earthen architecture. Construction techniques and restoration. From the international setting to some specific Italian regional cases

The research focuses on vernacular architecture, in particular earth buildings, highlighting the different geographic areas involved, building types and construction techniques. In Italy, despite theoretical progress, some cultural and technical problems are still evident in earth architecture conservation. This is also due to the prevalence, among earth buildings, of vernacular architecture, that, in general, has no artistic value and with historical value yet to be fully appreciated. The characteristics of some regional areas are also considered, with particular attention to the Marche and Sardinia Regions, where earthen constructions have existed since ancient times and are used to this day. Knowledge of construction techniques that are the result of age-old experience is the basis for a good conservation of existing buildings and for the design of new ones. Today, some sensitive public administrations, on the regional and local levels, have developed operating manuals for the conservation of earth constructions, but there is still no real legislative protection for earth buildings and their material authenticity.