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Sustainability 2018, 10(4), 1020; https://doi.org/10.3390/su10041020

Natural Stabilized Earth Panels versus Conventional Façade Systems. Economic and Environmental Impact Assessment

1
Departamento de Construcciones Arquitectónicas 1, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Avda. Reina Mercedes, 2, 41012 Seville, Spain
2
GACS Research Group, Department of Construction Sciences, Faculty of Architecture, Construction and Design, University of Bío-Bío, Av. Collao, 1202 Concepción, Chile
3
ArDiTec Research Group, Department of Architectural Constructions II, Higher Technical School of Building Engineering, University of Seville, Av. Reina Mercedes, 4-a, 41012 Seville, Spain
*
Author to whom correspondence should be addressed.
Received: 7 March 2018 / Revised: 21 March 2018 / Accepted: 22 March 2018 / Published: 30 March 2018
(This article belongs to the Collection Sustainable Built Environment)
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Abstract

More effective construction technologies are needed nowadays in order to reduce construction energy consumption during the life-cycle of buildings. Besides which, it is necessary to consider the economic feasibility and associated costs within the framework of these alternative technologies so as to favouring their practical implementation in the construction sector. In this sense, this paper presents an economic and environmental comparison of a new non-bearing façade construction solution based on the extruded unfired stabilized clay panels as opposed to three traditional solutions with similar physical, thermal, and aesthetic characteristics in terms of the exterior cladding. The proposed panels are a sandwich type configuration with an intermediate insulating material and two exterior pieces manufactured by extrusion with raw earth stabilized with alginate and animal wool fibers. In this paper, details of the constructive technology of the system are provided. From the results obtained, it is possible to conclude that the solution is a valid alternative from the environmental point of view, considerably reducing the Global Warming Potential and the Cumulative Energy Demand. And although the environmental improvement of the system can be considered the primary objective of this investigation, on the other hand, once executed, it will also be a competitive constructive technology from the perspective of the system’s final costs. View Full-Text
Keywords: façade solutions; earth blocks; natural fibers; life cycle assessment; embodied energy; sustainability; green-composites; green materials façade solutions; earth blocks; natural fibers; life cycle assessment; embodied energy; sustainability; green-composites; green materials
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Galán-Marín, C.; Martínez-Rocamora, A.; Solís-Guzmán, J.; Rivera-Gómez, C. Natural Stabilized Earth Panels versus Conventional Façade Systems. Economic and Environmental Impact Assessment. Sustainability 2018, 10, 1020.

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