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Communication Dans Un Congrès Année : 2021

On the influence of narrative in the perception of raw earth construction

Résumé

Raw earth has fundamental environmental values, including low embodied energy, reduced greenhouse emissions, and endless reuse. These benefits are driving the growing interest in earth-based construction projects and research (Morel and Charef, 2019). Moreover, raw earth as a material has numerous technical advantages, which can contribute to the quality of life of people living in and using raw earth buildings. To date, its hygrothermal advantages are probably those which have been most widely investigated (McGregor et al., 2016). However, raw earth has other strong points, less well known, which can also contribute to quality of life in a building, and which deserve more detailed attention. Such is the case regarding acoustic performance. A good acoustic comfort and quality is frequently attributed to earth architectures, but these assertions are usually not supported by facts nor data (Degrave-Lemeurs, Glé and Hellouin de Menibus, 2018). Nevertheless, its contribution is not limited to the physical field. The sensory domain in the questioning and design of lived space is also essential for placing people at the heart of the process (Audas, 2008). In order to treat the issues connected with both physical and sense-related factors, this study will take an approach based on architectural ambiances (Dubois, 2012), and more specifically, sound ambiances. Studying raw earth's role in a specific environment, that of primary schools, allows a rich and complimentary analysis of both physical and perceptual factors. This choice of environment enables physical factors determining raw earth's potential impact on architectural acoustics to be studied in a place where successful sound ambiance management is of fundamental importance to quality of use. Regarding research into perceptual factors, the school environment allows access to a wide range of users: adults and children of different ages and different socio-cultural profiles. The current work being carried out has highlighted the possible influence of construction history on the ambiances perceived by the future users of a building and it is this evidence that we want to share here. In contrast to conventional building sites using conventional materials, earth construction sites can offer greater involvement and participation for future users, non-professionals, and the general public. In countries such as France, it is common to use this possibility to organize workshops or training sessions for professionals or volunteers, supervised by earthen craftsmen in order to lower the expenses of building and to create a synergy of exchange and a diffusion of knowledge (BRUDED, 2019). Consequently and as a result of the observations made on the study sites, when users are given the opportunity to become active participants in the construction of buildings which will become their homes or workplaces, their perceptions of the ambiances of those buildings are likely to be influenced by their experiences of the construction process. Other factors, such as knowing the particular narrative of the building’s construction or the use of ecological materials including raw earth, can also influence the end user’s perception. However, in the case of raw earth a controversy arises, as its ancient character often gives it an archaic and negative image that is not always out-weighed by its benefits as an ecological material.
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halshs-03849967 , version 1 (12-11-2022)

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Paternité - Pas d'utilisation commerciale

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  • HAL Id : halshs-03849967 , version 1

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Marta Miranda Santos, Laurent Lescop, Erwan Hamard, Antonia Navarro Ezquerra. On the influence of narrative in the perception of raw earth construction. 15th Biennial International Conference of the European Architectural Envisioning Association: Envisioning Architectural Narratives, Sep 2021, Huddersfield, United Kingdom. pp.105-115. ⟨halshs-03849967⟩
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