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Impact of Air Tightness on the Evaluation of Building Energy Performance in Lithuania

Author

Listed:
  • Jolanta Šadauskienė

    (Institute of Architecture and Construction, Kaunas University of Technology, Tunelio st. 60, LT-44405 Kaunas, Lithuania)

  • Valdas Paukštys

    (Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Studentų st. 48, LT-51367 Kaunas, Lithuania)

  • Lina Šeduikytė

    (Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Studentų st. 48, LT-51367 Kaunas, Lithuania)

  • Karolis Banionis

    (Institute of Architecture and Construction, Kaunas University of Technology, Tunelio st. 60, LT-44405 Kaunas, Lithuania)

Abstract

In order to fulfil the European Energy Performance of Buildings Directive (EPBD) requirements for the reduction of energy consumption, European national requirements have been created for building envelope thermal properties and calculation methodology to determine if building energy efficiency is created. This is however not true in all methodologies. The necessity of building air tightness appears only for new A class buildings, and there are no requirements for air tightness for other building classes. Therefore, the aim of this work is to improve the methodology for the calculation of energy efficiency of buildings, while taking into account the air tightness of the buildings. In order to achieve this aim, the sum energy consumption of investigated buildings was calculated, energy efficiency classes were determined, air tightness of the buildings was measured, and reasons for insufficient air tightness were analyzed. Investigation results show that the average value of air tightness of A energy efficiency class buildings is 0.6 h −1 . The results of other investigated buildings, corresponding to B and C energy efficiency classes, show insufficient air tightness (the average n 50 value is 6 h −1 ); herewith, energy consumption for heating is higher than calculated, according to the energy efficiency methodology. This paper provides an energy performance evaluation scheme, under which performed evaluation of energy performance of buildings ensures high quality construction work, building durability, and the reliability of heat-loss calculations.

Suggested Citation

  • Jolanta Šadauskienė & Valdas Paukštys & Lina Šeduikytė & Karolis Banionis, 2014. "Impact of Air Tightness on the Evaluation of Building Energy Performance in Lithuania," Energies, MDPI, vol. 7(8), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:8:p:4972-4987:d:38795
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    References listed on IDEAS

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    1. Andaloro, Antonio P.F. & Salomone, Roberta & Ioppolo, Giuseppe & Andaloro, Laura, 2010. "Energy certification of buildings: A comparative analysis of progress towards implementation in European countries," Energy Policy, Elsevier, vol. 38(10), pages 5840-5866, October.
    2. Miimu Airaksinen & Mika Vuolle, 2013. "Heating Energy and Peak-Power Demand in a Standard and Low Energy Building," Energies, MDPI, vol. 6(1), pages 1-16, January.
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    2. João Malça & Ricardo M. S. F. Almeida & José A. R. Mendes Silva, 2023. "Evaluation of the Hygrothermal Conditions of a Typical Residential Building in the Azores Archipelago," Energies, MDPI, vol. 16(13), pages 1-16, June.
    3. Alexander Martín-Garín & José Antonio Millán-García & Juan María Hidalgo-Betanzos & Rufino Javier Hernández-Minguillón & Abderrahmane Baïri, 2020. "Airtightness Analysis of the Built Heritage–Field Measurements of Nineteenth Century Buildings through Blower Door Tests," Energies, MDPI, vol. 13(24), pages 1-28, December.
    4. Miłosz Raczyński & Radosław Rutkowski, 2020. "How Pro-Environmental Legal Regulations Affect the Design Process and Management of Multi-Family Residential Buildings in Poland," Energies, MDPI, vol. 13(20), pages 1-23, October.
    5. Valdas Paukštys & Gintaris Cinelis & Jūratė Mockienė & Mindaugas Daukšys, 2021. "Airtightness and Heat Energy Loss of Mid-Size Terraced Houses Built of Different Construction Materials," Energies, MDPI, vol. 14(19), pages 1-23, October.

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