Untersuchungen zum ganzj?hrigen W?rmeschutz an Varianten eines kombinierten Dachaufbaus mit Photovoltaik und Begrünung

摘要： Investigation of the year-round thermal buffering effect of a combined green roof with photovoltaics. Research projects on the possible synergies of green roof (GR) and photovoltaics (PV) carried out a decade ago. Today, this combination is well known for its advantages to achieve better yields, through the cooling process of evapotranspiration of the plants, the simultaneous use of the GR’s advantages and very good thermal properties. All previous studies on combinations PV+green-roof in the literature focus on PV optimization, PV yield and PV temperatures. Within the scope of the research project ?GrünPlusSchule@Ballungszentrum“ in Vienna, different combinations of PV+greening (fa?ade and/or roof) were tested. This article presents temperature measurement results of PV+green-roofs and its comparison to a normal extensive GR. Exciting results were founded: the combination PV+GR works as a year-round thermal buffer.