Green light for cooler cities: This is how Boku protects glass facades from heat!
Green light for cooler cities: This is how Boku protects glass facades from heat!
As part of an innovative research project at the University of Natural Resources and the Lady (BOKU), a green solution against overheated glass facades is developed. The Glasgrün project aims to create retrofitted, vertical greening systems that can reduce the temperatures in office and commercial buildings during the summer months. With a focus on thermal comfort, these systems are to be used primarily for earth to one-storey glass facades, which is increasingly necessary given the increasing energy consumption through overheated buildings. Project manager Rosemarie Stangl emphasizes the positive effects on energy consumption, the indoor climate and urban ecology and leads the first tests in Vienna and Tyrol, which showed promising results.
The previous results of the demonstration objects, including the MRIS BISTRO in Söll and the office property TB Obkircher in Vienna, are impressive. In the third year, plant covering of over 90 % could be achieved. There is also a reduction in solar radiation to the glass surfaces of more than 90 % during the summer months. Another positive aspect is the increase in air humidity in the immediate vicinity by around 10 %, which contributes to improving thermal comfort. The introduction of a green shading factor (FBS) also enables a quantifiable assessment of the shading by plants.
Integration in planning and architecture
A central goal of the project is the integration of the greening of the building into energetic building ID cards and planning guidelines. This should not only recognize the planned greenery as an aesthetic element, but also as an important measure for climatic adaptation in urban planning. Glass green is part of a larger research initiative, which also includes Hedwig and Margret projects. These examine the effect of existing vertical and roof greening and extensively analyze the influences of the green design on the microclimate.
The project is funded by the Federal Ministry for Climate Protection, Environment, Energy, Mobility, Innovation and Technology (BMK) and the Austrian Research Procial Funding Society (FFG) in the “City of the Future” program.
technological innovations by Fraunhofer caution
In addition to the greening technology, the Fraunhofer caution sets new standards with special elements made of limestone sandstone for creating down -to -bound, vertical greening systems. These elements consist of a mineral material with optimized absorbent and liquid -storing properties that are equipped with planters. Plants that grow in these channels not only offer aesthetic advantages, but also play a decisive role in reducing the temperature and improvement of the microclimate.
The possible uses of the developed systems are diverse. They range from wall cladding to design elements and green partitions to vertical gardening on balconies and terraces. In addition, the new irrigation system significantly reduces the maintenance effort and enables the stone layers to be irrigated individually.
Overall, Glasgrün represents significant progress in the development of climate -like architecture and shows how vertical greening not only reduces energy consumption, but also the urban climate can be improved. The comprehensive effects and technical innovations in the field of urban greenery are topics that are becoming increasingly important and are essential for sustainable urban planning.
For more information on the innovative approaches, visit the Oekonews, OTS and Fraunhofer views for detailed insights into the project and the supportive research initiatives.
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| Ort | Wien, Österreich |
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