Book review "Wohnquartier in Holz - Mustersiedlung in München" DBU Bauband 4
Published
Publisher: German Federal Foundation for the Environment / Sabine Djahanschah
The ecological model settlement "Prince Eugene Park"on a former barracks site in Munich sets new standards in timber construction. Various timber construction methods and building types up to seven storeys are being tested side by side in eight building projects with the aim of a final scientific evaluation. Timber frame, timber frame and timber hybrid construction methods are being used.
Close cooperation with the Deutsche Bundesstiftung Umwelt (DBU) and research commissions from the Ruhr Universität Bochum (RUB) and the Technische Universität München (TUM) ensure a sound evaluation of the monitoring accompanying construction. Beyond the realization of living space, the project makes an active contribution to climate protection and sustainable urban development.
Embedded in the surrounding parkland, the new quarter will also offer an attractive range of social, cultural and commercial infrastructure. Building volume 4 presents the eight building types and examines the potential of the different construction methods in detail.
Authors: Zeno Dietrich, Sabine Djahanschah, Annette Hafner, Wolfgang Huß, Ulrike Klar, Wolf Opitsch, Arnim Seidel and Michael Storck
First edition: 2020 Format: 112 Pages, German, 21 x 27 cm, Swiss brochure Publisher: Detail Business Information GmbH, Munich
The discussion about climate change and the growing demand for living space have increasingly brought timber construction into the focus of planners, architects and developers over the past year. After all, sustainable timber construction can make a significant contribution to climate protection and the creation of living space. The increased interest in timber construction is also reflected in the industry figures: the turnover of companies grew by 7 percent in 2019 compared to the previous year, the number of employees increased from around 68,000 to around 70,000 and the timber construction rate continued to grow in both residential (new construction) and non-residential (new construction) construction.
Holzbau Deutschland has published these and other facts, figures and forecasts on the structure of the sector, market and economic trends, the business situation and financing, as well as training and careers in the carpentry and timber construction trades in its "Situation Report Carpenters / Timber Construction 2020" published. It can be downloaded free of charge from the Association's website in the Business Administration section.
Even after Corona: Continue to drive forward climate protection
At the conclusion of the 11th Petersberg Climate Dialogue last week, German Chancellor Angela Merkel appealed that in the period after the Corona crisis, "when we launch economic stimulus packages, we should always keep climate protection firmly in mind and make it clear that we are not cutting back on climate protection, but investing in technologies that are fit for the future."
Timber construction has long been one of the sustainable technologies that can make an essential contribution to achieving climate protection goals. "Ecological, sustainable and resource-saving construction with wood must therefore continue to be the focus in residential construction as well as in redensification and gap filling in existing buildings. In order for timber construction to be recognized as an alternative on an equal footing with other construction methods, the framework conditions must be further improved and the building codes of the federal states must be adapted to the current state of the art," demanded Peter Aicher, Chairman of Holzbau Deutschland.
The current and further development in timber construction
Until the outbreak of the Corona pandemic, the mood in the timber construction industry was good. The satisfaction of carpentry and timber construction companies is also reflected in the Holzbau Deutschland business survey, in which almost 370 companies took part at the turn of the year 2019/2020. Their order backlog at the beginning of the year already averaged 17 weeks (previous year 15 weeks). The current exceptional situation in the wake of the Corona pandemic has not changed this much: According to recent surveys, most businesses are going about their work without any significant restrictions and in compliance with clearance and hygiene rules. Builders are also sticking to their construction projects. Many timber construction companies are currently benefiting from the existing high order backlog. For some of them, the workload will last until next year.
How turnover in timber construction will develop in 2020 and beyond, and what impact the Corona pandemic will have, cannot be reliably assessed at the present time. Regardless of the current situation, the timber construction industry has assumed a further 5 percent increase in sales by the beginning of March. The value is also based on the cautious confidence of the entrepreneurs from the economic survey of Holzbau Deutschland.
There is a 30-minute documentary film entitled "Das Bauhäusle - Einfach mehr als ein Studentenwohnheim" by Daniela Schaffart (2011) that can be ordered at: film@bauhaeusle.de
Constance receives project funding for "Hafner KliEn" from the Federal Government's 7th Energy Research Programme
The city of Constance strives for sustainable urban development. In the area of energy policy decisions and climate protection, this should include consideration of the triad of sufficiency, efficiency and substitution. This also and above all applies to the new Hafner district, which, in addition to 15 hectares of commercial land, also includes around 45 hectares of residential land.
Here, it is the city's declared goal to develop a climate-neutral neighbourhood in the overall balance. Early on in the process, relevant foundations were laid at the planning level and in the processes in order to think about this goal in an integrated way with all relevant subject areas and to develop corresponding concepts.
The research project "Hafner KliEn" aims to develop transferable concepts and practical solutions. The project title "KliEn" is composed of the goal "Hafner, climate-neutral and energy-efficient". For the first time in Germany, the feasibility of achieving these goals is being demonstrated in a neighbourhood of this size. An integral conceptual approach is to be developed that considers the entire life cycle of buildings, infrastructure and operating phase in a total system context. With a detailed project description, the City of Constance - supported by the Steinbeis Innovation Centre from Stuttgart - together with other partners from science and practice applied in January 2020 for funding within the framework of the 7th Energy Research Programme of the German Federal Government. At the end of November, the funding for the entire research network was approved for a total of two million euros. "We are very pleased about the recognition for the most sustainable and largest neighbourhood in Constance. The funding of 2 million enables us to tackle this ambitious goal with numerous partners. We are creating affordable housing for about 6,000 people in ecologically and energetically exemplary construction. The goal of climate neutrality is forward-looking. Especially against the backdrop of urban change, this project is of utmost importance for the housing action programme," says Karl Langensteiner-Schönborn, Mayor of the City of Hamburg, about the commitment.
In addition to the city administration, the following partners are involved in the project: The Steinbeis Innovation Centre, Stadtwerke Konstanz, HTWG and the University of Konstanz. The project partners are also pleased about the funding commitment. Dr. Norbert Reuter, Managing Director of Stadtwerke Konstanz, is one of them: "The funding enables us to develop a largely climate-neutral neighbourhood for the largest settlement expansion area in the city of Konstanz. We are very pleased to be able to help shape this path for the important areas of energy and heat supply as well as mobility." Further information on the Hafner and the "Hafner KliEn" research project at www.neuer-stadtteil.de
Source: PM of the City of Constance from 1.12.2020
Photovoltaic modules can generate climate-friendly electricity for decades
Old modules must be disposed of properly
New BSW information paper provides information on dispensing points and important safety instructions
One advantage of photovoltaics is that they can supply electricity for decades if installed and components are selected correctly. If photovoltaic modules are no longer used to generate solar power due to damage or age, they must be disposed of properly in accordance with the German Electrical and Electronic Equipment Act (ElektroG). After all, they contain valuable raw materials.
"The recycling of solar modules is technically feasible today. Specialised waste management companies can recycle old modules in such a way that the raw materials they contain can be fed almost completely into a production process as secondary raw materials," says Carsten Körnig, Managing Director of the German Solar Industry Association (BSW). "It is therefore important that discarded modules are channelled into the materials cycle. Owners of photovoltaic systems, installers and operators of collection centres can find out where old modules can be handed in and what needs to be considered in our new information sheet."
For example, modules from private households can be disposed of free of charge at designated collection points such as recycling centres or the take-back centres of manufacturers and distributors. "As an electrical voltage is generated when light falls on the active cell layer in photovoltaic modules, it is important to handle dismantled modules for disposal with care," says Körnig. For example, module cables should be secured, modules should be carefully stacked and, if necessary, provided with edge protection. "The solar-active side of the module should always face downwards when stacking, and open contacts and damaged backsheets should be insulated before removal."
More than 1.7 million photovoltaic systems are in operation in Germany. Under normal conditions, a photovoltaic module can reliably supply climate-friendly electricity for at least 25 years, and usually much longer. The industry association therefore does not expect to see a large number of old modules for a good ten years.
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The ecological model settlement "Prince Eugene Park"on a former barracks site in Munich sets new standards in timber construction. Various timber construction methods and building types up to seven storeys are being tested side by side in eight building projects with the aim of a final scientific evaluation. Timber frame, timber frame and timber hybrid construction methods are being used.
