TY - GEN
T1 - Parameter study of a prefabricated retrofit façade system
AU - Ott, S.
AU - Winter, S.
PY - 2012
Y1 - 2012
N2 - In the field of energy efficient retrofit of buildings the improvement of the building envelope is central to gain a low energy demand and user comfort in modernized buildings. The reduction of the heat transmission through the hull of the reused building fabric binds a reasonable amount of new resources for a long time. A life cycle model for façade retrofit implementation is missing. The aim is the optimization of life cycle design parameters of a newly developed façade retrofit system which fulfills fundamental sustainability issues throughout its life cycle e.g. efficient use of resources, good performance in terms of building physics during operation, less maintenance, and handling when becoming waste. The introduced system describes a retrofit method based preferably on timber and other renewable resources. A pre-evaluation of a recently completed case study project has featured relatively high results for resource consumption of certain retrofit scenario. The resulting target has to be the reduction of value at risk of the entire system due to resource inefficiency, complexity and even end of life. These issues may restrict the market access of a firm solution although it shows positive results to the aspect of environmental impact. The challenge is to balance and improve the performance of the interdependent sub-systems parameters. In timber construction it is necessary to compose material layers in order to ensure the technical properties of the final prefabricated element in combination with the existing exterior wall. In the same line it allows to leverage the properties of the appropriate panels, components etc., and to optimize the used components. The most important parameters of the system behavior are identified for life cycle relevant component characteristics e.g. material use, maintenance, repair, dismantling, separation, recycling. They raise the awareness of flaws, allow a management of risks, and finally demand new technologies for the improvement of the elements' resource efficiency.
AB - In the field of energy efficient retrofit of buildings the improvement of the building envelope is central to gain a low energy demand and user comfort in modernized buildings. The reduction of the heat transmission through the hull of the reused building fabric binds a reasonable amount of new resources for a long time. A life cycle model for façade retrofit implementation is missing. The aim is the optimization of life cycle design parameters of a newly developed façade retrofit system which fulfills fundamental sustainability issues throughout its life cycle e.g. efficient use of resources, good performance in terms of building physics during operation, less maintenance, and handling when becoming waste. The introduced system describes a retrofit method based preferably on timber and other renewable resources. A pre-evaluation of a recently completed case study project has featured relatively high results for resource consumption of certain retrofit scenario. The resulting target has to be the reduction of value at risk of the entire system due to resource inefficiency, complexity and even end of life. These issues may restrict the market access of a firm solution although it shows positive results to the aspect of environmental impact. The challenge is to balance and improve the performance of the interdependent sub-systems parameters. In timber construction it is necessary to compose material layers in order to ensure the technical properties of the final prefabricated element in combination with the existing exterior wall. In the same line it allows to leverage the properties of the appropriate panels, components etc., and to optimize the used components. The most important parameters of the system behavior are identified for life cycle relevant component characteristics e.g. material use, maintenance, repair, dismantling, separation, recycling. They raise the awareness of flaws, allow a management of risks, and finally demand new technologies for the improvement of the elements' resource efficiency.
UR - http://www.scopus.com/inward/record.url?scp=84874513434&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84874513434
SN - 9780415621267
T3 - Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
SP - 1694
EP - 1701
BT - Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
T2 - 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
Y2 - 3 October 2012 through 6 October 2012
ER -