Development of a smart, sustainable, carbon neutral and emission-free building renovation systems, supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2018R1D1A1B07050989), June 2018 – May 2022.

At the SKKU the Project “Development of a smart, sustainable, carbon neutral and emission free building renovation systems” is performed:

A big part of the Korean building stock needs to be renewed or renovated. The operation of existing buildings is related with a high energy consumption, particularly for heating and cooling. The energy efficient renovation of residential and commercial buildings could therefore, unlock immense energy saving potentials. Furthermore, the extension of buildings’ lifetimes would result in enhancement of overall resource efficiency of the Korean building industry.

This research will therefore develop smart and carbon neutral building renovation systems that facilitate the extension and renovation of inhabited residential and commercial buildings. The systems will consist of prefabricated components for floor slab extensions, energy efficient façades, and roofs. The systems will have zero energy and carbon footprints due to the incorporation of renewable materials and the integration of photovoltaic modules that generate renewable electricity from daylight.

Smart energy efficient building services engineering systems for energy management, heating, cooling and ventilation will be integrated in these systems in order to replace existing components after completion of the renovation process. These building envelope systems will facilitate the renovation of residential and commercial buildings to net zero energy consumption and the creation of synergies with electricity-based building services engineering systems and mobility. Building simulations, Life Cycle Cost Analysis and net present value evaluations will be executed for the quantification of achievable environmental and economical savings and profits.

Final goal of the project are the following developments:

  • Sustainable carbon neutral facade and roof systems for the renovation of buildings.
  • Facade and roof systems with integrated photovoltaic energy production and management.
  • Facade and roof systems with integrated ventilation, heating and cooling systems.
  • Production, construction and renovation methods for occupied buildings.
  • Simulation of the building renovation system’s environmental and economical costs.
  • Simulation of the renovated buildings environmental and economical properties and costs.
  • Life Cycle Cost Analysis (LCCA) of different renovated residential and commercial building types.
  • Net present value evaluation of building renovation’s LCC based on different life cycles (10 and 20 years)

Artist impression of an existing apartment building facade before (bottom left) and after (bottom right) renovation with a potential smart and sustainable building renovation system. Illustration of renovation system development process examples and potential results using the example of an apartment building: (1) existing building analysis and modeling, (2) facade analysis. (3) roof extension with sustainable roof and façade components, (4) Integration of new sustainable slab extension and facade components to one facade of the existing building model, (5) completion of one facade and roof renovation option.

The project is closely related to the German Project “NEQModPlus”, which integrates several tools for modelling the energy management of urban quarters and buildings. Researchers of both Universities are in an exchange of experience and spend study visits in the each other country.

Contact Person: Thorsten Schuetze


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Hochschule Karlsruhe – Technik und Wirtschaft | Karlsruhe University of Applied Sciences                 Universität Sungkyunkwan                 Karlsruher Institut für Technologie                 Land and Housing Institute (LH-I)                 Hochschule für Technik Stuttgart