MAŽAENERGIO PASTATO SIENOS-PAMATO ILGINIO ŠILUMINIO TILTELIO EFEKTYVUMO TYRIMAS

Study on linear wall- foundation thermal bridge efficiency in low-energy buildings

Authors

  • Donatas Aviža Panevėžio kolegija / University of Applied Sciences; Kaunas University of Technology
  • Rita Baltušnikienė Panevėžio kolegija / University of Applied Sciences; Kaunas University of Technology
  • Jovita Kaupienė Panevėžio kolegija / University of Applied Sciences; Kaunas University of Technology

Keywords:

longitudinal thermal bridge, A energy efficiency class, foundation insulation

Abstract

In this article, the authors carried out a research on a typical linear wall-foundation thermal bridge of a low-energy residential building, based on the principles of energy and economic efficiency. The empirical study showed that  the most economical way to heat the foundation of a A + class residential building is with a continuous insulation thickness of 100 mm XPS200 (T3 position). In this position the linear wall-foundation thermal bridge is equal to 0,13 W/(mK). The annual cost per 1 meter of this connection is 0.84 €/m. The simple payback period is 30 years. By heating the foundation with 250 mm insulation thickness layer, the standard linear thermal bridge size (0.10 W/(mK)) is achieved, however this solution exceeds the economic life cycle of the material, and the payback can reach 65 years. Under other preconditions, the research shall be reviewed.

Author Biographies

Donatas Aviža, Panevėžio kolegija / University of Applied Sciences; Kaunas University of Technology

Assoc. Prof. Dr.; Panevėžio kolegija / University of Applied Sciences, Lithuania.

Areas of scientific interests: construction, energy saving in buildings.

Rita Baltušnikienė, Panevėžio kolegija / University of Applied Sciences; Kaunas University of Technology

lecturer; Panevėžio kolegija / University of Applied Sciences, Lithuania.

Mokslinių interesų sritys: construction, energy saving in buildings.

Jovita Kaupienė, Panevėžio kolegija / University of Applied Sciences; Kaunas University of Technology

lecturer; Panevėžio kolegija / University of Applied Sciences, Lithuania.

Mokslinių interesų sritys: construction, energy saving in buildings.

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Published

2017-12-22

How to Cite

Aviža, D., Baltušnikienė, R., & Kaupienė, J. (2017). MAŽAENERGIO PASTATO SIENOS-PAMATO ILGINIO ŠILUMINIO TILTELIO EFEKTYVUMO TYRIMAS: Study on linear wall- foundation thermal bridge efficiency in low-energy buildings. Taikomieji Tyrimai Studijose Ir Praktikoje - Applied Research in Studies and Practice, 13(1), 130–136. Retrieved from https://ojs.panko.lt/index.php/ARSP/article/view/45