Impacts of Detailing on Annual Heating Demand in a Passive House Building

Date

2015-05-28

Author

Yılmaz, Deniz Derya
Tanyer, Ali Murat

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Since thermal bridges in buildings may result in excessive heat loss, mold growth and deterioration of indoor air quality; to eliminate thermal bridges becomes very crucial in buildings. In this paper, the impacts of thermal bridges on energy demand of an existing tunnel form work building are studied in which Passive House Principles are applied. Balcony, basement wall, roof, floor slab, interior wall and corner detail are evaluated using Therm 6.3 Software for the thermal bridge calculations. Since the results show that the fraction of the transmission heat losses is highest in the balcony, balcony detail is studied in more detail to show the impacts of improved detailing on annual heating demand. In the Passive House building, the impact of evaluated thermal bridges, as the percentage of the total annual heating demand, is 14%.The amount of heat losses through thermal bridges is highest at the balcony, unheated basement wall and roof detail respectively. Floor slabs and interior walls are the places where most of the total fabric conduction heat losses occur in the building. To insulate the balcony floor slab above and below the slab can reduce the thermal bridge heat losses by 32%. To use a thermal break element can reduce the thermal bridge heat losses by 84% and increase the minimum surface temperature significantly ensuring a detail without the risk of structural damage. Keywords: Passive House, Tunnel Form B

Subject Keywords

Passive house, Tunnel form buildings, Thermal bridges, Heat loss, Therm 6.3

URI

https://hdl.handle.net/11511/80050
http://www.isbs2015.gazi.edu.tr/belgeler/bildiriler/947-954.pdf

Conference Name

2nd International Sustainable Buildings Symposium (ISBS 2015)

Collections

Department of Architecture, Conference / Seminar

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Citation Formats

D. D. Yılmaz and A. M. Tanyer, “Impacts of Detailing on Annual Heating Demand in a Passive House Building,” presented at the 2nd International Sustainable Buildings Symposium (ISBS 2015), Ankara, Türkiye, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/80050.