2016-10-10, Hoffmann, Caroline, Geissler, Achim, Huber, Heinrich

A thorough building refurbishment generally includes window replacement and thermal insulation of the opaque building envelope. However, quite often only a window replacement is done and the building envelope is left uninsulated. This could lead to mould problems, because of the reduced air change. A possible solution can be the integration of passive window ventilation openings (PWVO). This paper deals with two questions: Firstly, can PWVO guarantee the necessary ventilation rate to avoid moisture damage? Secondly, how do PWVO compare to a ventilation system with heat recovery in terms of heating demand?

2014-12-01, Hoffmann, Caroline, Geissler, Achim, Huber, Heinrich

In diesem Projekt geht es um Fensterlüfter ohne Wärmerückgewinnung (WRG) in Wohnungen, in denen eine Querlüftung möglich ist. Das Projekt beinhaltet eine Literaturstudie, eine Marktstudie und thermische Simulationen. Der Bericht fasst die wichtigsten Erkenntnisse zusammen.