Thermal Bridges in the EPBD context
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Posting Date | 25 February 2010Publication Date | 2009
Country | Pan European
Geographic Coverage | International
Theme | Energy policies, Building envelope (walls, windows,...), Energy efficiency technologies and materials, Training and education, Calculation, simulation
Type of publication | Article
Publisher | AIVC
Number pages | 6
Source Languages | English
Documentation |
Thermal Bridges in the EPBD context
This paper was presented at the AIVC conference 2009 in Berlin and is based on the work in the European project ASIEPI (Assessment and Improvement of the EPBD Impact for new buildings and building renovation). It presents three different issues in connection with thermal bridges:
1. National requirements and calculation procedures (detailed and simplified) in the Member States (MS)participating in ASIEPI. In order to facilitate a correct comparison amongst MS regulations, the overview is split per geographical and climatic area: Northern, Central and Southern Europe.
2. Impact of thermal bridges on the energy performance of buildings. Studies that analyse the influence of detailed calculations of thermal bridges in comparison of neglecting the influence, but also in comparison with default values for thermal bridges, have been gathered for both summer and winter conditions.
3. Thermal bridge atlases and software to calculate thermal bridge effects. An overview and a categorisation of available atlases and software products have been made.
Thermal bridges increase the building energy demand for heating and cooling. For well insulated
envelopes and buildings with increased energy efficiency, the influence of thermal bridging on the
energy consumption is of major importance. Here the ratio between the thermal bridging effect and the overall thermal losses increases compared to low or medium insulated buildings and it is possible that the effect of thermal bridges on the energy demand compensates or even overtakes, for instance, the energy gain provided by thermal solar collectors for domestic hot water. The impact of thermal bridging on the energy consumption is even more pronounced in the case of building retrofit, where solving thermal bridges often is an issue, especially where external insulation is not applicable because of architectural constraints or not effective because of the presence of a lot of balconies.
envelopes and buildings with increased energy efficiency, the influence of thermal bridging on the
energy consumption is of major importance. Here the ratio between the thermal bridging effect and the overall thermal losses increases compared to low or medium insulated buildings and it is possible that the effect of thermal bridges on the energy demand compensates or even overtakes, for instance, the energy gain provided by thermal solar collectors for domestic hot water. The impact of thermal bridging on the energy consumption is even more pronounced in the case of building retrofit, where solving thermal bridges often is an issue, especially where external insulation is not applicable because of architectural constraints or not effective because of the presence of a lot of balconies.
URL | http://www.asiepi.eu
The paper was presented at the AIVC conference 2009 in Berlin, Germany.
Submitted on behalf of IEE ASIEPI WP4.
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