Design of Passive Building Foundations in the Polish Climatic Conditions

Tomasz Godlewski, Łukasz Mazur, Olga Szlachetka, Marcin Witowski, Stanisław Łukasik and Eugeniusz Koda
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Tomasz Godlewski: The Building Structures, Geotechnics and Concrete Department, Building Research Institute (ITB), 02-656 Warsaw, Poland
Łukasz Mazur: Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland
Olga Szlachetka: SGGW Water Centre, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland
Marcin Witowski: The Building Structures, Geotechnics and Concrete Department, Building Research Institute (ITB), 02-656 Warsaw, Poland
Stanisław Łukasik: The Building Structures, Geotechnics and Concrete Department, Building Research Institute (ITB), 02-656 Warsaw, Poland
Eugeniusz Koda: Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland

Energies, 2021, vol. 14, issue 23, 1-24

Abstract: A Passive House (PH) system is not only an opportunity but also a necessity for the further development of sustainable eco-buildings. Construction of the foundation in energy-efficient houses is the key to maintaining low energy losses. The appropriate selection of building materials requires considering the thermal conditions of the environment, including its location and the zero isotherms in the ground. The main objective of this work is to analyze the possibilities of designing foundations for PHs in Poland, according to the current methodological data. In order to realize the basic aims, the work was divided into the following materials and methods: (I) literature review; (II) database of PH in Central Europe; (III) method of depth of ground freezing determination; (IV) selection of the joint of slab-on-ground foundation and external wall to analysis; (V) description and validation of the heat-transfer model. The result of the research work is: (i) analysis of the foundation under the conditions of freezing of the ground in Poland; (ii) description and validation of the heat-transfer model. The research has revealed that in the Polish climate zone, the most efficient solution for passive buildings is to build them on a foundation slab. The foundation of a building below the latest specified ground frost depths in Poland is inefficient in terms of, for example, thermal insulation, economics, and the idea of PH.

Keywords: passive house (PH); efficient energy; thermal bridge; foundation construction; ground freezing (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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