(1.4.2011 - 31.10.2012)

Research contents:

One of the main challenges confronting the European and Chinese construction and real estate sector is maintaining and upgrading the built environment to meet the changing needs of the inhabitants, users and owners. WP4 will address a few issues in large scale retrofits applications in China on the basis of WP2 and WP3. Urban renewal could be seen as an opportunity for sustainable renovation. Existing buildings are replaced at very low rate, only 1-2 percent each year, and often too little and partly insufficient renovation activities take place to transform the building stock into a more sustainable state. WP4 will recognize barriers to renovation of buildings and provide sufficient knowledge, excellent experience and good examples, appropriate processes and products, motivate incentives or cost effective investments.

As for the eco efficient solutions for retrofit, different perspectives will be also taken into account, including the usage of recycling materials, structure repair and strengthen, surrounding wall regarding energy consumption (layers of the way), green roof design (energy saving, sight seeing), window and door selections, durability design, evaluation of LCA, the guideline on how to design and construction (prefabrication). Figure 6 show the processes of transferring the high exergy system into low exergy system during the course of large scale retrofit. This project will combine the present advanced building technology with the novel concept of renovation


  • Modular HVAC and energy production systems for renovation and fast renovation technologies by industrialized components

  • Concept for integrated control and operating systems applying forecasting of local conditions such as weather and usage patterns

  • Integrated and prefabricated facade solution panels for refurbishment including energy production, storage and control mechanisms.

  • Thermally activated building components able to store and transfer cooling energy

  • Efficient recycling technologies and procedures for demolished buildings and recycling of building waste


WP4. will make a comprehensive analysis of current situation related to sustainable renovation and take a life cycle perspective. Results will cover:

  • Energy supply and efficiency for buildings and communities at building level, possible technologies include approaches for energy storage and PV inclusion, new sensor technologies and smart metering as a tool to reduce electricity use in buildings, approaches for efficient electricity use.

  • Sustainable material and the efficient use of material, suggestions include the introduction of nano-based technologies for thermal insulation, refurbishment and conservation of historical buildings envelopes, approaches for the optimization of material usage.

  • System approach for sustainable renovation, suggestions include prefabricated elements, retrofit techniques, development of user-technology interfaces, indoor climate/environment

  • Methods of developing standards that will facilitate large scale retrofits applications


D4.1: Report on the innovative solutions for large scale retrofits (30.9.2011)

D4.2: Report on design principles for practical cases (1.3.2012)

D4.3: Report on system performance (31.10.2012)

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