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RoofKIT opened for public at SDE Europe 21/22 in Wuppertal

Fotografie: ©Zooey Braun

The Karlsruhe Institute of Technology is participating in the 2021/22 Solar Decathlon Competition in Wuppertal, Germany with its project RoofKIT. Designed as a top-up to an existing structure of the 19th century in the old city fabric, it demonstrates a vision for the building industry: social adequate, energy positive and circular sustainable.

It is the unique character of the Solar Decathlon competition, that next to an overall design approach of a larger project, a characteristic element is constructed as a full scale demonstrator. Since 2020, more than 100 students from KIT within different faculties and under the leadership of the professorships of Sustainable Construction (Prof. Dirk E. Hebel) and Building Technologies (Prof. Andreas Wagner) worked on the project which cumulated in the construction of the House Demonstration Unit in May and June 2022 in Wuppertal, Germany.

Designed as a prefabricated module system with a 100% circular construction method, the unit proofs already today, that with current technology and design capacities, we are able to fulfill the requirements of the European Green Deal. No glues, no paints, no foams or wet sealants were used, so that the circularity of the building and its materials is guaranteed. In addition, only mono-materials were used for construction, meaning no composites or mixtures of materials are to be seen.

But RoofKIT wants not only show what is possible in the future: many building components and materials are taken already out of the urban mine and are used in their second, third or even fourth circle: wood from old barns in the black forest, the entrance door from a building of the 19th century , windows from a demolished building in Basel, bathroom and kitchen sinks as well as fixtures from turn backs of fair exhibitions.

This circular approach only makes sense when it is powered by renewable energy. As the RoofKIT top-up is a new construction with a high energy efficiency standard, the total energy demand (including appliances and e-mobility) will be covered by solar systems on the building envelope. For solar harvesting PVT collectors are used which simultaneously provide electricity and heat, the latter serving as the source for a heat pump which feeds a floor heating system and hot water tank. The surface of the PV modules is colored with a special coating technology in order to merge with the copper roofing with almost no losses in efficiency. This important step is necessary to fully integrate solar panels into the design approach of future buildings. The overall light concept follows the idea of avoiding unnecessary fixtures where possible and using flexible hand-carried cable-free elements to illuminate only those areas where wanted. In addition, an artificial lighting system around the core delivers light with a luminous color adapted to the time of the day.

The unit sits on a scaffolding structure to demonstrate its character as a top-up design strategy. RoofKIT already today is a demonstrator for our future building culture and industry.

Fotografie: ©Zooey Braun


Project Credits:

Core student team KIT Karlsruhe: Patrick Bundschuh, Stefanie Christl, Luca Diefenbacher, Florian D’Ornano, Jonas Ernst, Dominic Faltien, Nadine Georgi, Aaron Harter, Johannes Hasselmann, Louis Hertenstein, Michael Hosch, Martin Kautzsch, Jennifer Keßler, Nicolas Klemm, Katharina Knoop, Sebastian Kreiter, Anne Lienhard, Michelle Montnacher, Fabian Moser, Friederike Motzkus, Jana Naeve, Saskia Nehr, Julian Raupp, Alexander Resch, Nicolas Salbach, Julian Schmidgruber, Natascha Steiner, Niels Striby, Dennis Sugg, Moritz Tanner, Sven Teichmann, Benjamin Weber, Vincent Witt, Immanuel Zeh

Project Leader: Regina Gebauer (Architecture) and Nicolás Carbonare (Building Technology)

Architectural Design: Faculty of Architecture, KIT Karlsruhe, Professorship of Sustainable Construction, Prof. Dirk E. Hebel, Regina Gebauer, Sandra Böhm, Katharina Blümke, Elena Boerman, Hanna Hoss, Philipp Jager, Daniel Lenz, Manuel Rausch, Daniela Schneider, Alireza Javadian, Nazain Saeidi, Elke Siedentopp with Michael Hosch, Benjamin Weber, Martin Kautzsch, Julian Raupp

Building Technology: Faculty of Architecture, KIT Karlsruhe, Professorship of Building Technologies, Prof. Andreas Wagner, Nicolás Carbonare, Isabel Mino Rodriguez with Martin Kautzsch (cooperative partners: Klaus Rohlffs, ip5 Karlsruhe; Prof. Jens Pfafferott, University of Applied Sciences, Offenburg; Martin Wortmann-Vierthaler, Heinrich-Meidinger-Berufsschule, Karlsruhe, David Wölfle, FZI Forschungszentrum Informatik)

Structural Design demonstration unit: 2hs Architekten und Ingenieur, Prof. Karsten Schlesier HCU Hamburg with Johannes Hasselmann and Jonas Benjamin Ernst

Structural Design circulation, foundation and safety elements: Faculty of Architecture, KIT Karlsruhe, Professorship of Structural Design, Prof. Riccardo La Magna, David Andersson

Structural Design scaffolding system: DOKA, Alexandra Sell und Markus Wientzek

Light Design: Faculty of Architecture, KIT Karlsruhe, Professorship of Building Technologies, Prof. Andreas Wagner, Luciana Alanis with Erik Hofmann and Maikel Hollstein

Urban Mobility: Faculty of Architecture, KIT Karlsruhe, Professorship of Urban Design, Prof. Markus Neppl, Peter Zeile with Nicolas Salbach and Daniel Lenz

Feasibility & Affordability, Life cycle Assessment: Faculty of Economics and Management, KIT Karlsruhe, Professorship of Sustainable Management of Housing and Real Estate, Prof. Thomas Lützkendorf, Daniel Rochlitzer with Regina Gebauer and Julian Schmidgruber

Material Library: Elena Boermann und Sandra Böhm mit Anna-Lena Kneip

Corporate Design and Communication: Philip Brücher, Nadine Georgi, Dominic Faltien, Lukas Großmann, Jennifer Keßler, Katharina Knoop, Michelle Montnacher, Saskia Nehr, Sanda Sandic, Natascha Steiner, Katharina Blümke, Daniel Lenz, Manuel Rausch

Fabrication demonstration unit: Kaufmann Zimmerei und Tischlerei, Reuthe, Bregenzerwald, Österreich, Matthias Kaufmann, Mario Meusburger with KIT students

Supported by: KIT Karlsruhe, German Ministry for Economic Affairs and Climate Action, Holzbauoffensive Baden-Württemberg, Energy Endeavour Foundation

Sponsoring Partners:

 More information: www.roofkit.de and www.sde21.eu/de/

       
 
 
 
Karlsruher Institut für Technologie
Fakultät für Architektur
Institut Entwerfen und Bautechnik

Professur Nachhaltiges Bauen
Englerstr. 11, Geb. 11.40, Raum 25
D-76131 Karlsruhe
 
Tel: +49 (0)721/608-42167
 
 
 
Recent Publications:  
 

    RoofKIT – How do we build in the future?

    June 13, 2022

    Lenz, Daniel, Regina Gebauer, Dirk E. Hebel, and Vanessa Falletta. 2022. “ROOFKIT: WIE BAUEN WIR IN ZUKUNFT?” Polis Online. June 10, 2022. https://polis-magazin.com/2022/06/roofkit-wie-bauen-wir-in-zukunft/.

     
     

    The Solar Decathlon Europe 21/22 in the Mirker Quartier is open to visitors

    June 13, 2022

    Christoph, Johanna, and Marvin Rosenhoff. 2022. “Der Solar Decathlon Europe 21/22 im Mirker Quartier ist für Besucher geöffnet.” Westdeutsche Zeitung. June 10, 2022. https://www.wz.de/nrw/wuppertal/wuppertal-solar-decathlon-europe-21-22-ist-fuer-besucher-geoeffnet_aid-71171755.

     
     

    What about recycling?

    June 8, 2022

    Kries, Mateo, Jochen Eisenbrand, and Mea Hoffmann, eds. 2022. “Wie steht’s mit dem Recyceln?” In Plastik. Die Welt neu denken, 190–95. Weil am Rhein: Vitra Design Museum.

     
     

    Event: Solar Decathlon Europe 21/22

    May 3, 2022

    Team RoofKIT (2022), “Veranstaltung: Solar Decathlon Europe 21/22”, in: polis – Urban Development, January 2022, p. 85

     
     

    Wood-Veneer-Reinforced Mycelium Composites for Sustainable Building Components

    April 11, 2022

    Özdemir, Eda, Nazanin Saeidi, Alireza Javadian, Andrea Rossi, Nadja Nolte, Shibo Ren, Albert Dwan, Ivan Acosta, Dirk E. Hebel, Jan Wurm, and Philipp Eversmann (2022), “Wood-Veneer-Reinforced Mycelium Composites for Sustainable Building Components”, in: Biomimetics 7, no. 2: 39, March 2022, https://doi.org/10.3390/biomimetics7020039, URL: https://www.zukunftbau.de/projekte/forschungsfoerderung

     
     

    Interview: 3 questions to Dirk Hebel

    March 21, 2022

    Müller, Judith, and Dirk E. Hebel (2022), Drei Fragen an Dirk Hebel, in: KIT-Zentrum Mensch und Technik, March 2022, URL: https://www.mensch-und-technik.kit.edu/dreifragenanhebel.php

     
     

    Becoming recyclable. The city as a regenerative resource

    March 19, 2022

    Hebel, Dirk E. (2022), Kreislauffähig werden. Die Stadt als regenerative Ressourcein: Bauwelt, Re-Use, ed. 6.2022, 15 March 2022, p. 16-19, URL: https://bauwelt.de/rubriken/betrifft/Kreislauffaehig-werden.-Die-Stadt-als-regenerative-Ressource-3744598.html

     
     

    Plant-based data centers

    March 15, 2022

    Judge, Peter (2022), Plant-based data centers, in: Data Centre Dynamics Ltd (DCD), 17 March 2022, URL: https://www.datacenterdynamics.com/en/analysis/plant-based-buildings/

     
     

    Stone on stone, mycelium or wood?

    March 10, 2022

    Schneeweiß, Ulrike (2022), Stein auf Stein, Pilz oder Holz?, in: Helmholtz Klima-Initiative, 03 January 2022, URL: https://www.helmholtz-klima.de/aktuelles/stein-auf-stein-pilz-oder-holz

     
     

    The Real Estate Industry needs a Master Plan for Circular Construction

    February 28, 2022

    Werth, Hans-Jörg (2022), „Die Immobilienwirtschaft benötigt einen Masterplan für zirkuläres Bauen“, in: Handelsblatt inside REAL ESTATE, 22 February 2022

     
     

    Innovative biological building materials

    February 16, 2022

    Hebel, Dirk E. (2022), “Innovative biologische Baumaterialien. Pilze als neuer Baustoff zum Schließen der Ressourcenlücke”, in: BauPortal, Fachmagazin der Berufsgenossenschaft der Bauwirtschaft, February 2022, p. 14-16

     
     

    Pure towards the Future

    January 31, 2022

    Hebel, Dirk E. (2021), Sortenrein Richtung Zukunft, in: Materialreport 2022, Raumprobe OHG (ed.), December 2021, p. 6-11

     
     

    Material/Research

    January 31, 2022

    Hempel, André, Eva Hermann, Verena Kluth and Helga Kühnhenrich (ed. BBSR) (2022), “Material/Forschung”, in: ZUKUNFT BAU Forschungsförderung, 2022, p. 10-13

     
     

    Now it’s Round & Old and New Building Materials

    January 31, 2022

    Braune, Anna (2022), “Jetzt geht’s rund – Circular Economy bei der Planung und im Bauen”, in: Deutsches Architektenblatt, DAB Regional Baden-Württemberg, 02/2022, p. 10-11

    Renz, Gabriele (2022), “Alte und neue Baumaterialien: Stroh-Wand Pilz-Ziegel Baum-Decke”, in: Deutsches Architektenblatt, DAB Regional Baden-Württemberg, 02/2022, p. 12-13

     
     

    Roofkit – How do we build in the future?

    January 26, 2022

    polis (2022), “ROOFKIT – WIE BAUEN WIR IN ZUKUNFT?”, in: polis online, 26.01.2021, https://polis-magazin.com/events/event/roofkit-wie-bauen-wir-in-zukunft/

     
     

    Changes in the Building Industry & Harvesting and Seeding Building Material

    January 10, 2022

    Hebel, Dirk E. (2022), “Wandel im Bauwesen”, in: Deutsche Bauzeitschrift, 01|2022, p. 36

    Hebel, Dirk E. and Felix Heisel (2022), “Baumaterial ernten und säen”, in: Deutsche Bauzeitschrift, 01/2022, p. 40-44

     
     

    Architectural Education for the Age of Circular Construction

    January 10, 2022

    Blümke, Katharina, Daniel Lenz, and Dirk E. Hebel. 2021. “Architekturausbildung für das Zeitalter des zirkulären Bauens.” LUST AUF GUT(e) VIER WÄNDE – REPUBLIC OF CULTURE  Special: Rund ums Bauen und Wohnen, October 29, 2021. https://www.lust-auf-gut.de/magazine-previews/blaettern/lust-auf-gut-magazin-special-rund-ums-bauen-und-wohnen-34/.

     
     

    A Future for the Building Stock

    December 10, 2021

    Schoof, Jakob (2021), “Eine Zukunft für den Bestand (5): Umbauprojekt RoofKIT für den Solar Decathlon Europe”, in: DETAIL online, 09.12.2021, https://www.detail.de/artikel/eine-zukunft-fuer-den-bestand-5-umbauprojekt-roofkit-fuer-den-solar-decathlon-europe/

     
     

    Café ADA – Solar Decathlon in Wuppertal: Two Visions for the Renovation

    December 10, 2021

    Haus-, Wohnungs- und Grundeigentümer-Verein in Wuppertal u. Umgebung e.V. (Hrsg.) (2021), “Café ADA. Solar Decathlon in Wuppertal: Zwei Visionen für die Sanierung”, in: hausundgrund – Magazin für Haus- und Grundstückseigentümer, ed. 10/21, p. 22-27

     
     

    The Architecture of Waste – Design for a Circular Economy

    November 29, 2021

    Hebel, Dirk (2021), “Afterword”, in: The Architecture of Waste – Design for a Circular Economy”, 2021, p. 232-233

     
     

    Myco-Architecture: Building with Mushrooms

    November 18, 2021

    Sigmund, Bettina (2021), “Myko-Architektur: Bauen mit Pilzen”, in: DETAIL, 6.2021, p. 32-35

     
     

    Cultivating Cycles

    November 18, 2021

    Himmelreich, Jørg (2021), Round Table with Dirk E. Hebel, Folke Köbberling and Martin Kaltwasser: “Kreisläufe kultivieren”, in: Das Magazin der SCHWEIZER BAUDOKUMENTATION, 06-2021, p. 18-21

     
     

    lookKIT – The magazine for research, teaching, innovation

    November 2, 2021

    Fuchs, Stefan (2021), Interview with Sandra Böhm, Daniela Schneider and Dirk E. Hebel: “Wir müssen einfacher, intelligenter und sortenrein bauen”, in: looKIT, 03/2021, p. 10-14.

    Wiebe, Sandra (2021), “The Future City as Resource Supply” (about RoofKIT), in: looKIT, 03/2021, p. 34-37.

    Link, Regina (2021), “Das Bauwesen braucht eine radikale Wende” (about Architects for Future Karlsruhe) , in: lookKIT, 03/2021, p. 46-49.

     
     

    “The time of mycelium will come”

    November 2, 2021

    Backhaus, Anne (2021), “Die Zeit der Pilze wird kommen”, in: Energiewende-Magazin, Nr. 9/2021, p. 46-55.

     
     

    Interview: With the future design of reversible buildings, cities can become their own material reservoir

    June 25, 2021

    Hebel, Dirk E., and Cordula Rau (2021), Cordula Rau im Gespräch mit Dirk E. Hebel: Mit der künftigen Konzipierung rückbaubarer Gebäude können Städte zu ihrem eigenen Material-Reservoir werden, in: architektur. aktuell: the art of building, June 2021, p. 14-15.

     
     

    Urban Mining and Circular Construction

    June 1, 2021

    Heisel, Felix, Dirk E. Hebel, (Ed.) (2021), Urban Mining und kreislaufgerechtes Bauen. Die Stadt als Rohstofflager, Stuttgart: Fraunhofer IRB Verlag, 2021.

     
     

    Bricolage: Renewable building materials

    June 1, 2021

    Hebel, Dirk E., and Jenny Keller (2021), Bricolage 3: Nachwachsende Rohstoffe, in: werk, bauen + wohnen, Materialkreislauf, 5-2021, p. 30-31.

     
     

    Green architecture or green fairy tales?

    May 12, 2021

    Welzbacher, Christian (2021), Grüne Architektur oder grüne Märchen?, in: Deutsches Architektenblatt, NACHHALTIG, 05/2021, p. 16-21.

     
     

    Building as materials cycle

    May 6, 2021

    Hebel, Dirk E., and Angela Kratz (2021), Bauen als Stoffkreislauf, in: IBA Magazin No. 4, Heidelberg für alle, April 2021, p. 24-25.

     
     

    Recycling through leasing

    May 6, 2021

    Angélil, Marc, Sarah Graham, and Cary Siress (2021), Recycling through leasing, in: Constructing Sustainability, Lafarge Holcim Foundation for Sustainable Construction, 2021, p. 36-37.