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Sustainable Building Specifier (SBS) in european research projects

: Gantner, Johannes; Lenz, Katrin; Wittstock, Bastian; Sedlbauer, Klaus

Hauser, Gerd (Ed.); Lützkendorf, Thomas (Ed.); Essig, Natalie (Ed.) ; TU München; Karlsruhe Institute of Technology -KIT-; Fraunhofer-Institut für Bauphysik -IBP-, Stuttgart:
Implementing sustainability - barriers and chances. Book of full papers : April 24 - 26, 2013; SB 13 Munich
Stuttgart: Fraunhofer IRB Verlag, 2013
ISBN: 978-3-8167-8982-6 (E-Book)
Sustainable Building Conference (SB) <2013, Munich>
Conference Paper
Fraunhofer IBP ()

In the last ten years significant progress in the development and implementation of energy efficiency measures in buildings and building equipment were achieved. Therefor the energy demand of buildings decreased tremendously. Due to the reduction of the energy needed in the use phase of a building, the production of the building itself and the building materials get more and more important. Hence in European research projects related to energy efficient buildings and building products, the European Commission asks for Life Cycle Assessment (LCA) studies to verify the decrease of the energy consumption during the whole lifecycle of a building. So far mainly expert tools are available to perform such studies. The "SBS Building Sustainability" was developed to enable also non LCA experts to create transparently and cost effective building LCAs in order to include it not only in the very end of a research project but already in early design stages to maximize the optimization potential. Furthermore it is possible to develop not just a simplified first approach but also very detailed LCAs of buildings.
In the European research projects "OPEN HOUSE" and "Cost-Effective" SBS was tested in different levels and with different goals. In "OPEN HOUSE" the tool was used by non LCA experts in different countries to set up 76 building LCAs in order to create European and national benchmarks. In "Cost-Effective" SBS was used to assess retrofit measures on building level including new energy efficient components (e.g. facade integrated PV solution). Building components (e.g. wall constructions) were modelled directly in SBS, whereas the specific energy efficient equipment was imported from the LCA expert tool GaBi. All in all, SBS showed its flexibility in practice to fit to the different goals of the two research projects and the simplification related to time and usability.