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Open AccessArticle

Examination of Bearing Walls Regarding Their Environmental Performance

1
Institute of Environmental Engineering, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 042 00 Kosice, Slovakia
2
Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, Jana Bottu 25, 917 24 Trnava, Slovakia
3
Institute of Architectural Engineering, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 042 00 Kosice, Slovakia
*
Author to whom correspondence should be addressed.
Energies 2019, 12(2), 260; https://doi.org/10.3390/en12020260
Received: 19 November 2018 / Revised: 4 January 2019 / Accepted: 9 January 2019 / Published: 15 January 2019
A comprehensive understanding of the environmental impacts of buildings is not possible without knowledge of the technical and environmental properties of the materials that are used for their construction. This paper evaluates the environmental impacts of 156 material variations of conventional compositions of external bearing walls, which represent a significant part of a building’s envelope. Environmental (embodied energy, global warming potential, effects to human health, damage to ecosystems, and resources availability) and technical (surface temperature, number of layers, thickness, and weight) parameters are investigated for structures with similar heat transfer coefficients (U = 0.21–0.22 W/(m2·K)). Based on a multi-criteria analysis, an optimal material composition, consisting of aerated concrete with graphite polystyrene, was identified. By analyzing the costs of the best material compositions, it is observed that constructions with environmental benefits do not result in an increase in the cost of the construction. On the contrary, at present, they represent an approximately 10% cheaper solution. View Full-Text
Keywords: primary energy; building material; global warming potential; greenhouse emissions; environmental assessment; Life Cycle Assessment primary energy; building material; global warming potential; greenhouse emissions; environmental assessment; Life Cycle Assessment
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MDPI and ACS Style

Estokova, A.; Ondova, M.; Wolfova, M.; Paulikova, A.; Toth, S. Examination of Bearing Walls Regarding Their Environmental Performance. Energies 2019, 12, 260.

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