Reportage of the city of Berlin "Resource-efficient building with concrete, gypsum, brick and wood".
Published
19:09 min, Published on: 18.11.2020
Dwindling raw materials, dwindling landfill space and ambitious climate protection targets make it essential to overcome the high use of resources in the construction industry. The film shows that there are already many ways to use building materials sustainably in the cycle: Recycled concrete, recycled gypsum, the reuse and recycling of bricks and the renewable raw material wood.
Around 60 percent of the resources used in Berlin are processed in the construction industry. This contrasts with millions of tonnes of building rubble and construction site waste. Every year, 2.2 million tons of primary raw materials are already saved in civil engineering and building construction in Berlin through the use of quality-assured secondary raw materials. But Berlin does not intend to stop there. By 2030, a further 1.4 million tonnes of primary materials are to be replaced by secondary raw materials each year.
Video: Gretchen Agency GmbH/EUMB Pöschk GmbH & Co. KG/Ute Czylwik
Publisher: Senate Department for the Environment, Transport and Climate Protection
Europe's largest passive house in timber construction is located in Lübeck. It serves as a new workplace for 430 employees of the local public utility company. According to the client, the timber construction method was no more expensive than a conventional mineral wet construction method - also because an intelligent fire protection concept meant that it was not necessary to clad the timber components.
Online tool simplifies calculation of resource efficiency
With funding from the federal support programme "Unternehmen Revier", the Factor X agency of the development company has developed an internet-based tool for the simple calculation of the resource efficiency of one's own building project. The tool has now undergone final testing and will be available online from September.
With the Factor X construction method, the entire life cycle of buildings is considered, resulting in many new opportunities for saving raw materials and thus for climate- and resource-saving construction. Until now, the resource efficiency of buildings has been calculated using a spreadsheet as part of the Factor X Agency's construction consultancy service. This is now to be made even easier by the new online tool, which will be accessible to the public via the Internet. The database-based tool was realised with funding from the federal support programme "Unternehmen Revier".
At the invitation of the Fakor X agency, the almost completed online tool was subjected to a final test. Fifteen testers from science, administration and building practice checked the user guidance and calculated test buildings. The concept was praised by all testers. A few suggestions for improvement are still being incorporated into the programming before the online tool is released in September and will then be available.
Initiator Klaus Dosch, head of the Factor X Agency of the indeland development company, is enthusiastic: "Here we are setting up a tool for climate- and resource-friendly construction that does not yet exist in Europe. Even non-specialists interested in construction are supported by our tool in such a way that they can very easily calculate the resource efficiency of their building project. We have created a link to the building materials database of the Federal Institute for Research on Building, Urban Affairs and Spatial Development (BBSR). For the first time, we are making the construction life cycle understandable for laypeople."
Improving resource efficiency in the construction of housing estates is an essential part of the strategy of the indeland 2030 master plan of the development company indeland GmbH. A number of strategies lead to the achievement of these goals and have been tested in the Faktor X settlements in Eschweiler and Inden. With the development of strategies and projects for sustainable building and living, indeland has long since taken on a lighthouse function far beyond the region. Together with the exhibition already opened in May, the tool is intended to contribute to the illustration and dissemination of the Factor X strategies.
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