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Energy-optimised construction in refurbishment
Old buildings also have a future, because the greatest potential for energy savings is in the building’s fabric. The implementation of new concepts, materials and technologies in refurbishment is demonstrated in a whole range of exemplary refurbishment projects. Whether a large residential complex, a small residential building, office building or hall of residence, data acquired from scientific evaluation makes these pilot applications into models for consistent building refurbishment. Each project description is updated on an ongoing basis, and follows the project through its phases, from "planned", "refurbished", "in operation" and "evaluated", through to "optimised".
Schools
A secondary school wants to move. However, the new building is actually an old one. The double-winged system-built school with an assembly hall and gymnasium dates back to 1974. The precast concrete building is currently being gutted and renovated in accordance with the passive house standard. From 2012, it will become the new home of the Max Steenbeck Secondary School in Cottbus. The renovation project is considered to be a model for other schools since the building type is widespread in the region and the new school is relying on innovative concepts and technologies.
more details Refurbishment of a system-built, precast concrete school
Public buildings
When asked to explain in detail what was renovated at this sports hall, Bernd Blochwitz has a simple answer: "Everything!" Blochwitz is head of the Dormagen utility company that is responsible for the building management in the town. At the beginning of the project, it was seriously contemplated demolishing the old building and starting again. Instead the entire building technology was renewed, ranging from the ceiling and wall cladding to the complete facade structure. Thanks to this project, the sports hall – which can look back on a rich history – has got itself back into shape and is ready to be a model of energy efficiency. In future, the hall will require 60 per cent less energy.
more details Workout for the sports hall in Dormagen
Schools
The school in Olbersdorf provides an example of a successful compromise between historic conservation and energy-based refurbishment. In order that the building, which was constructed in 1928, could also be used in future as a school, it was necessary to considerably reduce the energy costs. The most important starting point was to provide consistent thermal protection for the building.
more details Comprehensive refurbishment of a school listed as a historic monument
Schools
Instead of attending three different school sites in the Rostock suburb of Reutershagen, in future school pupils shall be taught in a central and expanded school building that has been refurbished in terms of its energy efficiency. The school is designed to achieve the energy-plus standard, which means that it will produce more energy than the building requires during the course of the year. The project can be transferred to other schools because this type of building is widespread in the former East German federal states and also exists in a similar form in the West German federal states.
more details Refurbishment and expansion to become energy-plus school
Schools
The space requirements continually grew during the course of the years. It was also decided to bundle the specialist rooms. The secondary school, which is located in Marktoberdorf, Bavaria, therefore decided to build a second extension to the passive house standard. The existing buildings – a main building along with an extension and sports hall – were also refurbished at the same time and in energy terms brought up to the standard “30% better than EnEV” (German Energy Saving Ordinance).
more details Refurbishment and expansion of a school
