Analysis of the Thermal Retrofitting Potential of the External Walls of Podhale’s Historical Timber Buildings in the Aspect of the Non-Deterioration of Their Technical Condition

Małgorzata Fedorczak-Cisak, Elżbieta Radziszewska-Zielina, Bożena Orlik-Kożdoń, Tomasz Steidl and Tadeusz Tatara
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Małgorzata Fedorczak-Cisak: Faculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, Poland
Elżbieta Radziszewska-Zielina: Faculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, Poland
Bożena Orlik-Kożdoń: Faculty of Civil Engineering, Silesia University of Technology, 44-100 Gliwice, Poland
Tomasz Steidl: Faculty of Civil Engineering, Silesia University of Technology, 44-100 Gliwice, Poland
Tadeusz Tatara: Faculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, Poland

Energies, 2020, vol. 13, issue 18, 1-35

Abstract: The paper discusses thermal quality improvement in historic buildings. It is based on a case study of a wooden historical building in an architectural style typical of Zakopane, located in the Podhale region of Poland. The building’s historical value and timber structure prevent the application of typical thermal retrofitting solutions. This paper presents an analysis of the possibilities of the improvement of energy performance of a historic building (villa) which included: a review of the available energy performance improvement solutions applicable to this type of building, with a particular focus on applying internal insulation; a technical condition assessment using non-invasive methods, the identification of problematic areas in terms of the thermal retrofitting of buildings with timber walls and decks; in situ tests: thermovision tests which showed the places with temperature distribution field disturbances in the building’s envelope, focusing on thermal bridges; measurements of actual thermal transmittance coefficients for extant partitions; measurements of the building’s airtightness and the microclimate in selected rooms; numerical analysis: an assessment of the influence of the thermal bridges on the building’s existing condition, an analysis of water content changes in wall systems post-insulation. The presented approach enables the improvement of the energy performance of timber historical buildings while preserving the historical value of its architecture. It is innovative because it tries to fill in a research gap concerning a lack of relevant guidelines in Poland. The research questions that the authors asked were as follows. Is it possible to improve the thermal insulation of a building’s wooden walls without adversely affecting the building’s technical condition? With regard to the necessity to meet nZEB (nearly zero energy building) standards, is it feasible to improve the timber walls of historical buildings? The study found that under the correct assumptions and while maintaining a responsible approach to design, it is possible to improve the energy performance of historical buildings without interfering with historical heritage.

Keywords: energy performance; historic structure; comfort of use; U thermal transmittance measurements; thermovision; digital modelling (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: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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