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U. Pont, P. Schober, M. Wölzl, M. Schuss, J. Haberl, K. Hauer:
"Recent Progress in the VAMOS-Project: Vacuum glass as Alternative for Window Retrofit";
in: "Conference Proceedings - 2nd International Sustainable Energy Conference 2022", issued by: Aee Intec; ISEC 2nd International Sustainable Energy Conference 2022, Eigenverlag mit wissenschaftlichem Lektorat, 2022, 2 pages.

This contribution sheds light on ongoing efforts in the VAMOS-project. This project targets the thorough
examination of the application of vacuum glazing products in existing window construction, specifically
casement windows. Given the large number of casement windows in Central European cities (compare Oettl
2011), which often make up a constituent of historic facades, investigation toward non-destructive but efficient
thermal retrofit seems to be justified. Needless to say, the thermal improvement of the (historic) building stock
is a condition sine qua non in reduction of building-related energy consumption and CHG-emission. The
balancing between the appearance of the buildings, which form an important part of the cultural heritage of many
European cities and villages and the thermal performance of both the windows and the overall buildings, can be
considered as challenging. Vacuum glazing products offer a very good thermal performance at reasonable
thickness, as such the replacement of float glass by vacuum glass products seems a viable option. However, a
number of application aspects, such as thermal bridges, condensation risk, and acoustical performance of
vacuum-glass equipped casement windows have yet to be explored. These aspects are the focal content of the
VAMOS project, in which we will equip casement windows with vacuum glazing and subject these windows to
long-term monitoring.

This contribution sheds light on ongoing efforts in the VAMOS-project. This project targets the thorough
examination of the application of vacuum glazing products in existing window construction, specifically
casement windows. Given the large number of casement windows in Central European cities (compare Oettl
2011), which often make up a constituent of historic facades, investigation toward non-destructive but efficient
thermal retrofit seems to be justified. Needless to say, the thermal improvement of the (historic) building stock
is a condition sine qua non in reduction of building-related energy consumption and CHG-emission. The
balancing between the appearance of the buildings, which form an important part of the cultural heritage of many
European cities and villages and the thermal performance of both the windows and the overall buildings, can be
considered as challenging. Vacuum glazing products offer a very good thermal performance at reasonable
thickness, as such the replacement of float glass by vacuum glass products seems a viable option. However, a
number of application aspects, such as thermal bridges, condensation risk, and acoustical performance of
vacuum-glass equipped casement windows have yet to be explored. These aspects are the focal content of the
VAMOS project, in which we will equip casement windows with vacuum glazing and subject these windows to
long-term monitoring.

Casement windows, thermal retrofit, vacuum glass, monitoring, window detailing.