<div class="csl-bib-body">
<div class="csl-entry">Fischer, H. S., Frühwald, F. J., & Korjenic, A. (2022). Ecological comparison of hygrothermally safe floor constructions based on renewable raw materials for multi-storey buildings. <i>Journal of Building Engineering</i>, <i>57</i>, 1–17. https://doi.org/10.1016/j.jobe.2022.104899</div>
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dc.identifier.issn
2352-7102
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/80319
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dc.description.abstract
The major goal of the European Green Deal states that Europe will be climate neutral by 2050.
Hence, massive changes have to happen in the construction industry. One way to reduce the
environmental impact caused by the building sector is the use of building materials consisting of
renewable raw materials. In order to enable a wider application of bio-based building products,
the hygrothermal safety of all building components has to be guaranteed. In this paper, three floor
constructions based on renewable raw materials, each representing a type of construction and
foundation, were examined for their hygrothermal safety. In addition, these were compared with
a conventional floor structure in terms of their environmental characteristics. The ecological
evaluation was carried out by the analysis of the global warming potential, Oekoindex OI3,
disposal indicator and on the basis of corresponding environmental product declarations (EPDs).
The software WUFI 2D was used for the hygrothermal evaluation. The results prove the con-
structions’ hygrothermal safety in the simulated climate. The ecological calculation shows the
possible reduction of the global warming potential of the floor constructions of up to 82% per m2,
depending on the choice of construction type and materials. Applying the other three methods
mentioned above, the analysis results in a reduction potential of the environmental load of
approx. 53–55% per m2. Depending on the chosen assessment method the results differ. This
states clearly how sensitive the selection of suitable indicators is. Fact is, that the data situation
around the ecological indicators of building products is a key issue which has a major effect on
the results of the evaluations. All results of the ecological assessment presented in this study were
strongly influenced by the foundation type. Consequently, the material efficiency and type of
foundation used have a significant effect on the ecology and the environmental performance of
the simulated floor constructions.
en
dc.language.iso
en
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dc.publisher
Elsevier Ltd.
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dc.relation.ispartof
Journal of Building Engineering
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
Bio-based building materials
en
dc.subject
Hygrothermal simulation
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dc.subject
LCA
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dc.subject
Sustainable Construction
en
dc.subject
Floor construction
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dc.subject
Green building
en
dc.title
Ecological comparison of hygrothermally safe floor constructions based on renewable raw materials for multi-storey buildings