The energy efficiency measures of old buildings are especially challenging, due to the fact that only limited measures are possible to improve the building envelope. The most attractive and simple renovation of façades with thick external conventional insulation systems are not possible. On the one side, the existing façades should be conserved or upgraded giving the same esthetic expression and on the other side, the thermal measures cause addition risk. Especially the inside insulation of walls can disturb the moisture balance of the façade wall and cause damages. Reliable guidelines how to achieve a sustainable renovation of old façades are missing.
The objective of the study is to explore the potential of aerogel-based retrofitted old building envelope, and to find robust concepts for the safe application. Building envelope systems with vacuum insulation panels, VIP, considering façade orientation and climatic exposure will be analyzed. Impact and possible elimination effects of thermal bridges, condensation risks, wall cracks and air tightness of constructions are considered. Field measurements, lab test and simulation models will be used in this PhD-project.
The purpose of the project is to explore the use of highly efficient novel thermal insulation material in old buildings in order to improve energy efficiency and thermal comfort while preserving the look of the external façades. The insulation measures will be applied on houses of the type Landshövdingehus.
The project is carried out at the Division of Building Technology, research group Building Physics.
Angela Sasic Kalagasidis