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RoofKIT: Briefing for Wuppertal

As part of a team meeting, the RoofKIT team prepared for the Solar Decathlon competition in Wuppertal in the courtyard of the department of architecture.

The student team leader Regina Gebauer hosted the evening. Topics addressed included the assembly and disassembly phase, as well as work shifts, accommodation and the event phase.

The event ended with a wine tasting with an associated evaluation with regard to the dinner evening.

Photos © Katharina Blümke

KULTURKIOSK FREIBURG – Stegreifausgabe Mittwoch 11.05.22, 10.00 Uhr, 20.40 Raum 136 (Fakultätszimmer)

Stühlinger Kirchplatz is a small park in the center of Freiburg. A well-known meeting point for the whole community and a venue for diverse events, it is also a place of conflict due to drug dealing and excessive alcohol consumption.

An initiative by local social and cultural associations aims to establish a small multifunctional building or object as a starting point for a positive and integrated development of the whole park.

Developing a concept for this “Kulturkiosk”, addressing the social cultural context with sustainable construction and digital design, will be the focus of the Stegreif.

The Stegreif is a collaboration between the Professur Nachaltiges Bauen, Professur Digital Design and Fabrication and “Schwere(s)Los! e.V.”.

(de)

Der Stühlinger Kirchplatz im Zentrum Freiburgs ist ein beliebter Treffpunkt für das gesamte Quartier, andererseits ist er aufgrund von Drogenhandel und übermäßigem Alkoholkonsum ein Ort des Konflikts.

Eine Initiative lokaler sozialer und kultureller Vereine zielt darauf ab, ein kleines multifunktionales Gebäude oder Objekt als Ausgangspunkt für eine positive Entwicklung des gesamten Parks zu schaffen.

Die Entwicklung eines Konzepts für diesen “Kulturkiosk”, das den soziokulturellen Kontext mit nachhaltigem Bauen und digitalem Design verbindet, wird im Mittelpunkt des Stegreif stehen.

Der Stegreif ist eine Zusammenarbeit zwischen der Professur Nachaltiges Bauen, der Professur Digital Design and Fabrication und “Schwere(s)Los! e.V.“.



Ausgabe Stegreif: 11.05.2022, 10:00 Uhr – Geb. 20.40, Raum 136 (Fakultätszimmer)
Betreuungen: 11./18.05.2022
Abgabe: 25.05.2022

Thanks for sustain.build.repeat.

On 29 April, the Chair of Sustainable Construction was a guest at the Centre for Art and Media (ZKM) Karlsruhe to organise, in cooperation with the Faculty of Architecture, PINK Event Service, mint Café, Campusradio Karlsruhe and many more, the 3rd Symposium for Sustainable Construction “sustain.build.repeat. – building stock as the resource of the 21st Century”.

Invited speakers were Tina Kammer, Kerstin Müller, Thomas Auer, Daniel Fuhrhop, Dominik Campanella, Roland Gruber and Philippe Block. The panel discussions were moderated by Monica Tusinean, who was assisted by Elena Boerman with audience questions. Prof. Dirk E. Hebel guided the audience through the event.

Around 100 participants were present at the ZKM, and many viewers also followed the event online. Parallel to the event, we recorded a podcast with our speakers to further elaborate on the content of the presentations.

We would like to sincerely thank all those involved in the event for their commitment and organisational efforts, for the great encounters, conversations and new connections that were created at and through the symposium. Thank you!

Symposium sustain.build.repeat. – Building Stock as the Resource of the 21st Century

>>> Registration for the live event at ZKM expired on 21st April 2022
>>> Livestream openly available (without prior registration)
>>> Please register here after the event for Educations Points of the Architektenkammer BW

Our 3rd Symposium on Sustainable Construction at a glance:
date: 29th April 2022 from 10AM to 5PM (admission from 9AM)
location: ZKM Medientheater Karlsruhe, registration expired
livestream: The event will be livestreamed openly and without registration on changelab.exchange

The symposium sustain.build.repeat. is dedicated to the resource of the 21st century: our building stock. With growing waste volumes and ever scarcer raw materials, careless building demolitions and replacements must be avoided. Instead, existing buildings should be converted and rebuilt, components removed, reused and reused again. 

It is important to preserve as much of the existing building stock as possible on the premise of resource- and climate-friendly architecture: on the one hand as a changeable space in which various usage scenarios are possible, and on the other hand as a material depot and secondary raw material supplier. Representatives from science and industry, research and practice will present ideas, strategies and impulses on how the ecological necessity of reconstruction and transformation of the existing can become an enriching element of a caring, needs-oriented and value-preserving architecture in ecological balance.

We are very pleased to welcome the following speakers to our event:
Thomas Auer, Philippe Block, Dominik Campanella, Daniel Fuhrhop, Roland Gruber, Tina Kammer, and Kerstin Müller.

Additionally, a thematic introduction will be given by Prof. Dirk Hebel, Professor of Sustainable Construction and Dean of the Department of Architecture, the panel discussions between the lectures will be moderated by Monica Tusinean. In the foyer in front of the Medientheater, there will be an accompanying exhibition of student works that deal with the preservation of existing stock. 

The event is organised by the Professorship of Sustainable Construction of the KIT Department of Architecture. The symposium is part of ChangeLab, an innovation platform for sustainability in the building industry, sponsored by Wacker Chemie AG. 

The event and the livestream will also be part of the education programme of the Architektenkammer Baden-Württemberg (AKBW registration number: 2022-151695-0001). In order to receive training points for participation in the livestream, it is absolutely necessary to verify participation in the form provided AFTER the event on arch.kit.edu.

Admission to the ZKM will begin at 9AM on the event day. The symposium will start at 10 am and last until 5pm. A get together and guided tours of the current ZKM exhibition “BioMedien” will be offered for our participants from 5 to 6 pm.

We look forward to your participation in the event!

Symposium preparations in the ZKM Medientheater with KIT, PINK and ZKM © Katharina Blümke

(H)Austausch! Ausstellung beim Tag der offenen Tür in Pfrondorf

On 2 April 2022, nestbau AG Tübingen invited to an open day at the “Neschtle” in Pfrondorf. In addition to a greeting by Gunnar Laufer-Stark from nestbau AG and the presentation of the timber construction planned on site in Pfrondorf (architecture bürohauser), the event also included a small exhibition of student work from the design course “(H)Austausch!”, which was created in the winter semester 2020/21 at KIT.

The students dealt with the question of how a synergetic solution can be found for the two coinciding phenomena of housing shortage (e.g. for young families who need space) on the one hand and housing overflow (e.g. due to changed life situations such as children moving out, widowhood, etc.) on the other. Architectural ideas were developed on how such a “house swap” could look like: Close-to-the-environment, adapted, attractive, but also sufficiency-oriented living space for people who are willing to leave their flats and houses that have become too big.

Daniel Lenz represented the Chair of Sustainable Building and, together with the students present, answered questions from the visitors.

(de)

Am 2. April 2022 lud die nestbau AG Tübingen zum Tag der offenen Tür ins “Neschtle” nach Pfrondorf. Die Veranstaltung umfasste neben einem Grußwort von Gunnar Laufer-Stark von der nestbau AG und der Präsentation des am Ort in Pfrondorf geplanten Holzbaus (Architektur bürohauser) auch eine kleine Ausstellung der Studierendenarbeiten des Entwurfskurses “(H)Austausch!”, der im Wintersemester 2020/21 am KIT entstand.

Die Studierenden beschäftigten sich mit der Frage, wie für die beiden zusammentreffenden Phänomene Wohnungsknappheit (z.B. für junge Familien, die Platz benötigen) auf der einen Seite und Wohnraumüberfluss (z.B. durch veränderte Lebenssituationen wie Auszug der Kinder, Verwitwung, etc.) eine synergetische Lösung gefunden werden kann. Es wurden dabei architektonische Ideen entwickelt, wie solch ein “Haustausch” aussehen könnte: Umfeldnaher, angepasster, attraktiver, aber auch suffizienter Wohnraum für Menschen, die dafür bereit sind ihre zu groß gewordenen Wohnungen und Häuser zu verlassen.

Daniel Lenz vertrat die Professur Nachhaltiges Bauen und stand zusammen mit anwesenden Studierenden den Besuchern Frage und Antwort.

Opening of the Vitra Exhibition “Plastic: Remaking Our World”

An exhibition by the Vitra Design Museum, V&A Dundee and maat, Lisbon

The Vitra Design Museum in Weil am Rhein presents the exhibition ‘Plastic: Remaking our World’ as an exploration of the history and future of the controversial material. Plastics have symbolized a world of carefree consumerism and revolutionary innovation, opening the doors for designers and architects for decades. Of course today, the dramatic consequences of the plastic boom have become so obvious that the material has lost its utopian connotation.

The exhibition begins with a large-scale video installation spotlighting the conflicts linked to the production and use of plastic. Timeless images of unspoilt nature are juxtaposed with film documents from one hundred years of plastic industry that convey the ambiguous fascination of increasingly fast-paced automated production at rapidly diminishing costs. The formation of fossil resources such as coal and oil took more than two hundred million years, while the synthetic materials made from them needed little more than a century to become a problem of planetary scale.

The second part of the exhibition describes the evolution and the shifting perceptions of plastics from their beginnings in the mid-nineteenth century to their global omnipresence today. The first plastic materials were plant- or animal-based: for centuries, horn and tortoiseshell were used to create drinking vessels and to embellish cutlery. In 1907, Leo Baekeland invented the first plastic made of purely synthetic components and named it Bakelite. It was hailed as the material of infinite uses. Being nonconductive, Bakelite was soon used for light switches, wall sockets, or radio sets and played a central role in the electrification of everyday life.

While early plastics were often developed by independent inventors and tinkerers, from the 1920s onwards the expanding petrochemical industry took a leading role. This marked the beginning of an era of »petromodernity«. When industrial design emerged as a profession of its own in the 1930s, its proponents were quick to embrace the possibilities of the new materials. Also Architects began to discover plastics as a building material and in 1957 Monsanto installed the all-plastic »House of the Future« at Disneyland.

A few years later, a growing fascination with space flight shifted the focus to plastic’s utopian potential, which was reflected in futurist shapes and new interior design concepts. In the 1960s, based on the notion of convenience and fuelled by the packaging industry, the idea of single-use plastics was introduced and a new throwaway culture began to spread. The oil crisis in 1973 meant lower supplies and higher prices for the resource from which most plastics were made, but it had little long-term effect on the plastic boom. While global plastic production soon picked up again, strategies for reducing plastic waste were slow to emerge.

Today, plastics are globally omnipresent and an intricate part of our lives. Like no other, the human health sector exemplifies the plastic paradox – its positive, sometimes lifesaving qualities as well as its negative, even life-threatening impacts. The issues arising from the plastic boom have etched themselves in our collective consciousness: from microplastic in the soil, in the oceans, and in our bodies to mountains of packaging waste that are often disposed of or burnt – with immense ecological consequences on a global scale.

How can we overcome the global plastic waste crisis? And what role can design – alongside industry, consumers, and politics – play in the process? These are some fundamental questions addressed in the final part of the exhibition. In recent years, many scientists and designers have started exploring materials that are based on renewable rather than fossil resources and often referred to as bioplastics.

Mycelium Research by the Professorship of Sustainable Construction © Elena Boerman

The Professorship of Sustainable Construction of the KIT Department of Architecture was asked to exhibit their ongoing research of building materials made from mycelium. Therefore the team prepared the different steps of growth of a mycelium brick to show biological alternatives for the building sector.

As a whole, the exhibition »Plastic: Remaking Our World« offers a critical and differentiated reassessment of plastic in today’s world. It aims to address the bigger picture of plastic and its complex role in our world: by analysing how we came to be so dependent on it, by reassessing where the use of plastic is essential and where it can be reduced or replaced, and by reimagining possible futures for this contested material.

The Opening Talk and the Vernissage of the exhibition took place on the 25th March 2022. It will be shown in the Vitra Design Museum until 4th September 2022 and then move to the V&A Dundee London and the maat in Lisbon. (Text: Vitra Design Museum)

“Plastic: Remaking Our World”

An exhibition by the Vitra Design Museum, V&A Dundee and maat, Lisbon

Plastic: Remaking Our World © Vitra Design Museum

“Plastics have shaped our daily lives like no other material: from packaging to footwear, from household goods to furniture, from automobiles to architecture. A symbol of carefree consumerism and revolutionary innovation, plastics have spurred the imagination of designers and architects for decades. Today, the dramatic consequences of the plastic boom have become obvious and plastics have lost their utopian appeal. The exhibition »Plastic: Remaking Our World« at the Vitra Design Museum will examine the history and future of this controversial material – from its meteoric rise in the twentieth century to its environmental impact and to cutting-edge solutions for a more sustainable use of plastic. Exhibits will include rarities from the dawn of the plastic age and spectacular objects of the pop era as well as numerous contemporary designs and projects ranging from pragmatic product innovations to solutions for cleaning up the oceans and bioplastics made from algae or mycelium.” (Official announcement by the curators)

The Professorship of Sustainable Construction has been invited to present extracts from their mycelium research in this exhibition. The exhibition will take place at the Vitra Design Museum from 26 March 2022 to 04 September 2022.

“Environmental Hangover” – A Human Body made of Mycelium in the Kunsthalle Basel

The KIT Professorship of Sustainable Construction (Nazanin Saeidi and Alireza Javadian) was asked by the Brazilian-Swiss artist Pedro Wirz to build a human figure out of mycelium, which has since become part of his exhibition at Kunsthalle Basel.

The Curupira made of Mycelium © Philipp Hänger

With the playful and colourful exhibition “Environmental Hangover”, the artist pleads for more sustainability. He draws attention to the fossil age in various ways and, on this occasion, also deliberately softens the boundaries between nature and technology in places. In addition, he uses the contents of the exhibition to criticise the unmistakable permanent traces that humans leave on the earth and in cities.

The Curupira made of Mycelium © Philipp Hänger

The legendary Curupira, the imposing protector of the forests and animals from mycelium, closes the exhibition. With this object, too, the artist draws attention to the importance of sustainability in all areas of life.

The exhibition can be seen in the Kunsthalle Basel until the 1st May 2022. More information on the website of the Kunsthalle Basel.

How do we build in the Future? – The RoofKIT exhibition in the Architekturschaufenster

The “Solar Decathlon Europe” is one of the most important competitions for students in the field of architecture and construction. Here, in a multi-semester effort by interdisciplinary teams, solutions are to be found for the enormous challenges facing our society and its architecture.

The KIT Faculty of Architecture is participating with the RoofKIT project. The exhibition uses the project as an example to show what these challenges are and how we can face them: Radical reduction of energy consumption, circular construction, use of the city as a resource, use of renewable raw materials in modular and single-variety construction, space-saving forms of living together and intelligent concepts of urban redensification.

Exhibition Photography © Dominic Faltien

The exhibition shows in a concrete and comprehensible way how the coming generation of architects will put these ideas into practice and thus shape a more sustainable future for all of us. It can be visited from 11.01.2022 until 04.02.2022 in the Architekturschaufenster in the Waldstraße in Karlsruhe.

More information on www.architekturschaufenster.de or on polis-magazin.com.

Prof. Dirk E. Hebel: Mentor of the Norman Foster Foundation Workshop 2021 – Re-Materializing Housing

Supported by the Holcim Foundation, the Norman Foster Foundation ‘Re-Materializing Housing’ Workshop took place from 15-19 November 2021. As the Workshop’s Mentor, Dirk Hebel, pointed out, ‘mainstream building practices are unsustainable. The construction sector uses an extensive amount of material resources and is responsible for the use of material compounds that are harmful to both humans and the environment. It is not enough to talk about more efficient steps to take within the existing systems but time for a real paradigm shift’.

Norman Foster Foundation Workshop 2021 – Re Materializing Housing © Norman Foster Foundation

The Norman Foster Foundation’s 2021 Re-materializing Housing Workshop included seminars, lectures, one-to-one tutoring and architectural tours. The workshop consisted of a five-day event led by Dirk Hebel, Professor of Sustainable Construction, Karlsruhe Institut für Technologie (KIT).

The Workshop’s Academic Body spanned a wide range of practitioners from different fields related to architecture. This year’s Academic Body included Dirk Hebel, Professor of Sustainable Construction, Karlsruhe Institut für Technologie (KIT), Karlsruhe, Germany; Tom Bloxham, Founder and Chairman, Urban Splash, Manchester, United Kingdom; Anna Heringer, Founder and Director, Studio Anna Heringer, Laufen, Germany; Laila Iskandar, Former Minister of Urban Renewal and Informal Settlements, Cairo, Egypt; Johan Karlsson, Managing Director, Better Shelter, Stockholm, Sweden; Carme Pinós, Founder and Director, Estudio Carme Pinós, Barcelona, Spain; Stuart Smith, Director, Arup Berlin, Berlin, Germany; Brinda Somaya, Principal Architect and Managing Director, Somaya and Kalappa Consultants, Mumbai, India.

Hundreds of candidates from around the world applicated for the Workshop. The selection committee awarded ten scholarships to students from the following universities and institutions: Harvard University, United States, University of Cambridge, United Kingdom, Kamla Raheja Vidyanidhi Institute of Architecture and Environmental Studies, India, University of Stuttgart, Germany, Pontificia Universidad Católica de Chile, Chile, Massachusetts Institute of Technology (MIT), United States, Confluence Institute, France, Universidad Nacional de Córdoba, Argentina, University of Cape Town, South Africa, Namibia University of Science and Technology, Namibia.

The video about the Workshop is also available on the website of the Norman Foster Foundation.

Solar Decathlon in Wuppertal: RoofKITs vision for Café ADA

Cover 10/2021 © Haus und Grund Wuppertal

The magazine Haus und Grund Wuppertal published an article in its 10/2021 issue about two projects in the SolarDecathlon 2021, which will take place from 10 to 26 June 2022 on the Nordbahntrasse opposite Mirker Bahnhof. DETAIl also reports on the project of the Karlsruhe team RoofKIT in an online series entitled “A Future for Existing Buildings”.

The Solar Decathlon is probably the best-known international student competition on the topic of sustainable building and living. Among the projects published in this issue is Team RoofKIT’s vision for Café ADA in Wuppertal. RoofKIT is an interdisciplinary team of students from the Karlsruhe Institute of Technology (KIT), in Karlsruhe, Baden-Württemberg. The student team consists mainly of architects and engineers from the faculties of architecture and civil engineering, geosciences and environmental sciences. The team works closely with professors from various KIT faculties as well as interdisciplinary and supporting companies. An interdisciplinary core team consisting of 12 students is responsible for project management and coordination.

Model of RoofKIT © RoofKIT, KIT

Team RoofKIT is developing an urban blueprint on unused land resources in cities: the roof surfaces. The goal is to understand the city as a social factory, urban raw material store and sustainable energy producer. How can we create socio-economically fair housing without destroying our natural resources? How can we transform the building sector so that it does not exacerbate climate change? How can we run a circular construction industry?

The team provides answers to these questions using the example of Café ADA, the famous Latin American dance and event venue in the Mirke Quarter. A construction kit is developed that can find an almost universal application in the urban context and is based on new (single-variety) construction principles and materials. The direct inward redensification of urban space not only has the potential to create new living spaces in the midst of existing structures, but also the chance to optimise a neighbourhood economically, socially and energetically in the long term. The integrated energy concept is also part of the architectural and urban design. In order to be climate-neutral over the course of the year, the RoofKIT system is based on various measures, such as the use of solar energy and daylight, natural ventilation or an improvement of the urban microclimate around the building through green areas.

RoofKIT sees the city as a depot and future supplier of materials. The challenge is to develop new technologies to transform these materials into a new generation of qualitatively sustainable (i.e. ecologically harmless, technically pure and economically attractive) building materials. For precisely this reuse of building materials, single-variety construction principles are being developed that aim at a circular construction method and enable problem-free deconstruction. This allows the state of “urban mining” (urban man-made raw material storage) to be understood as a transitional phase into a true circular economy in the construction sector.

The existing café use will be expanded to include a hotel area. The dance hall will be moved from the first floor to the second. In the resulting “urban gap”, an event space for music, theatre, dance and culture will be created. It radiates into the urban environment and offers residents and users a new attractiveness. The building is completed with two residential floors; the different-sized living spaces in combination with communal areas offer a high-quality living space.

More information about RoofKIT on their Website or their podcast Fighting 40%.

Award Ceremony of the Schelling Studienpreis

The Schelling Studienpreis is the student counterpart of the renowned Schelling Architekturpreis, which is awarded every two years by the Schelling Architecture Foundation in Karlsruhe to international architects. The study prize was awarded for the first time in 2015.

This year, nine former students who completed their Master’s degree in the past two years have been nominated. The main award is endowed with 2,000 euros.

Three of the nine nominated master’s theses were submitted to the Professorship of Sustainable Construction. These included the thesis by Hanna Wollny entitled “Gebäude als Materialressource – Am Beispiel eines temporären Hörsaalgebäudes” (Hebel/Wagner) from the winter semester 2019/20, the thesis by Caterina Goerner from the summer semester 2020, who entitled her thesis “Nordschwarzwald Regional – Von der Ruine zur Mine” (Hebel/Wagner), as well as the thesis by Fanny Hirt, who dealt with “Kaufhaustransformation – Neudefinition der Heidelberger Innenstadt” in the winter semester 2020/21.

At the award ceremony on the evening of 25 November 2021, the Master’s theses of Hanna Wollny and Fanny Hirt were each awarded recognition of the Schelling Studienpreis. Clara Süßmann received the Schelling Studienpreis for her Master’s thesis entitled “Auf Schatzsuche im Schwarzwald – Mineralienspeicher Grube Clara”, which was supervised by Prof. Wappner and Prof. Rambow in the summer semester of 2020.

Congratulations to all the laureates! More information on arch.kit.edu.

Nature Scientific Report: Mycelium-bound Biocomposite – A Sustainable Replacement for Particleboards

Mycelium-bound materials would play a significant role in mitigation of adverse climate change effect imposed by material consumption and resource scarcity. This paper, published by KIT researchers in scientific reports as part Nature publishing group, proposes dense mycelium-based composites (DMCs) as a potential green alternative to traditional particleboards.

Mycelium, as the root of fungi, is composed of filamentous strands of fine hyphae that bind discrete substrate particles into a block material. With advanced processing, dense mycelium-bound composites (DMCs) resembling commercial particleboards can be formed.

Testing specimens: a, dimensions of testing samples and b, test specimens for flexural, tensile and compression testing (from top to bottom)

In this paper the research team including Dr. Nazanin Saeidi, Dr. Alireza Javadian, and Prof. Dirk E. Hebel from the chair of Sustainable Construction at KIT, Karlsruhe, Germany in collaboration with Urban Biocycle project at FCL global and Xin Ying Chan and Prof. Manoj Gupta from NUS, Singapore have investigated the possibility of using DMCs as a green alternative to particleboards. 

A detailed investigation was carried out on the mechanical properties and performance of DMCs under the working conditions of particleboards. The DMC was made using Ganoderma lucidum mycelium grown on a substrate of sawdust and empty fruit bunch collected from the waste byproducts of Sawmills and Palm oil factories. The DMC was then subjected to weathering under tropical conditions over 35 days and tested under flexural, tensile, and compressive loading with reference to international standards. The results over the weathering period reveal that weathering reduces the strength and rigidity of the material.

However, by application of a commonly used natural oil-based coating DMC was able to withstand degradation under tropical weathering conditions. Furthermore, it was shown that some improvements to the material’s consistency could effectively increase the material strength and resistance to weathering with the help of a protective coating. Therefore, DMC could be a promising material as an environmentally friendly substitute for particleboards if such improvements in material production are made.

More information about the scientific report on nature.com.

Building Sense Now Global Award: Anupama Kundoo, Guest Professor at the KIT Faculty of Architecture

The Building Sense Now Global Award was presented at a digital award ceremony on November 11, 2021 with the participation of the German Sustainable Building Council (DGNB) and in the course of the world climate conference COP26. The Award is looking for new, innovative design strategies from around the world that want to achieve ambitious goals and deal with climate change and sustainability issues. The award is given to work that has made a difference and has shown special qualities on all levels and scales. This award focuses on architects and their design process as well as the philosophical and ethical questions – not just the final solution in the built project. The initiative seeks disruptive thinking that shows the potential to address large-scale problems in a variety of areas, such as: buildings, urban renewal and transformation projects, urban systems and ecosystems, and people-centered urban design.

Anupama Kundoo © Andreas Deffner


This year, the award went to the Indian architect Prof. Dr. Anupama Kundoo. She was honoured for her commitment to climate and culture-friendly construction. She has already implemented more than 100 projects with her offices in Pondicherry and Berlin, most of them in India. She currently holds a Guest Professorship at Faculty of Architecture at the Karlsruhe Institute of Technology KIT together with Maarten Gielen of RotorDC and a Professorship for Structural Design at the Potsdam University of Applied Sciences. She currently offers a master’s design course at KIT Faculty of Architecture on the topic “Circularity: Architecture as a Mechanism of Waste Capture”.

Green Solutions Awards 2020-21: The Mehr.WERT.Pavillon was awarded the Sustainable Infrastructure Grand Prize

The Green Solutions Awards ceremony took place in Glasgow on Wednesday 10 November 2021. The competition, organised by the international Construction21 platform, rewards outstanding architectural projects that address the challenges of climate protection and sustainability in an innovative way. Winners were selected from 192 entries from 25 countries in eight categories. 16 other projects received recognition from the jury, which is made up of experts in sustainable construction from around the world.

Green Solutions Award © Construction21

The jury was particularly impressed by these projects because they address the key issues of sustainable construction: economy of materials, energy efficiency, health and user comfort, off-site prefabrication, protection of biodiversity and species, circular economy, and many more. They were also selected because they have the potential to inspire building sector professionals and be adapted and developed on a large scale.

The Mehr.WERT.Pavillon – Top View © Jonathan Preker Copterbrothers, Side view © Felix Heisel

The Mehr.WERT.Pavillon, built up on the Bundesgartenschau 2019 in Heilbronn, was awarded the Sustainable Infrastructure Grand Prize. The building proved that it is already possible today to design and realise sophisticated architecture entirely from the materials of the urban mine, and to apply the principles of the circular economy in its construction without compromise. The materials used for the construction were all selected according to these requirements and joined only with the help of detachable, mechanical connections, so that they can be completely reused or recycled without any loss of value. However, the structure was so convincing that it has now been completely relocated for the time being after the end of the exhibition and will continue to exist for a few more years near its original location – as a material storage facility, social meeting place and physical proof that it is already possible to build in a cycle-friendly manner today.

The jury of the Green Solutions Awards 2020-21 stated: “By betting on the circular economy, it shows how urban areas can be sources of materials. The Mehr Wert Pavilion in Germany is built entirely from recycled materials and can be completely dismantled. A feat in terms of sobriety that should send a signal to all planners and builders.”

The aim of the pavilion was and is to discuss important questions of future building and the associated use of resources with decision-makers from politics, building planning and implementation, and to develop new innovative concepts, applications and methods from this, both in practice and in teaching.

The Ministry for the Environment, Climate Protection and Energy Sector Baden Württemberg has produced a film about the development process of the Mehr.WERT.Pavilion from planning to construction, which can be viewed here.

HIWI WANTED – KIT Materials Library

Recruitment from December 2021 or January 2022
If interested, please email elena.boerman@kit.edu.

Dear students,

the Materials Library is looking for support to continue building up its database. A dedicated team is working here cooperatively and meets regularly to exchange ideas. 

Main tasks in the beginning:
– Building up the website of the KIT materials library
– Editing material photographies for the material data sheets

Further tasks:
– Active cooperation in building up the database, analysing and improving the structure.
– Researching building materials
– Evaluating the research results and transferring them into comprehensive material data sheets

The job requires you to work independently and on your own responsibility. You will be actively involved in the team. Basic skills in Excel, Photoshop and Webdesign are required.

If you are interested, please send an e-mail to elena.boerman@kit.edu. In the e-mail, you are welcome to introduce yourself briefly and explain in one or two sentences why you are interested in the position (also in German).

If you have any questions in advance, please contact me via email.

The recruitment is scheduled for December 2021 or January 2022.

“Welttag der Städte”: SDE 21/22 models at 14 locations in Wuppertal

31 October was the “Welttag der Städte” (“World Day of Cities”). Fittingly, the architectural models of the Solar Decathlon Europe 21/22 of the Bergische Universität Wuppertal are exhibited at prominent locations in Wuppertal. They can be viewed there in the coming days and weeks.

The two models of the KIT Karlsruhe SDE team RoofKIT can be visited in the codeks in Wuppertal-Elberfeld.

The “Welttag der Städte” (“World Day of Cities”) on 31 October is a call by the United Nations to work together for sustainable strategies for cities. Currently, about 75% of buildings in the EU are not energy efficient. They cause 36% of CO2 emissions. Increasing the energy efficiency of buildings not only saves heating costs, but also protects our climate.

This is exactly where the Solar Decathlon comes in. Together with local partners, Bergische Universität Wuppertal has managed to bring the most important international university competition for energy-efficient building and living to Wuppertal.

With the travelling exhibition, the models are now coming to the people of Wuppertal. From February/March 2022, they will be exhibited throughout NRW. From 10-26 June 2022, all interested parties are cordially invited to experience the built houses and the event and cultural programme live.

“Sustainable Architecture” – Scientists for Future Podcast

The Scientists for Future podcast features monthly conversations with scientists about climate change, sustainability and a livable future.

The building sector is responsible for around 40% of CO2 and greenhouse gases in Europe. The Scientists for Future took this initial situation as an opportunity to join forces with the Architects for Future and dedicate an episode of their podcast to the topic of architecture. To do so, they invited Prof. Dirk Hebel from Professorship of Sustainable Construction at the Karlsruhe Institute of Technology.

S4F-Podcast #19 “Sustainable Architecture” © Scientists for Future

“We have to understand our buildings as material stores,” he describes. In addition to the question of raw material consumption and the circular economy, the current podcast episode also talks about urban planning and the new European Bauhaus. Svenja from S4F and Leonie from A4F Kassel also discuss with their guest how architecture and our coexistence must change for a sustainable future. Because it turns out: How we build is not only a technical question but also a cultural one.

The current episode of the Scientists-for-Future-Podcast “Sustainable Architecture” is available here.

The Professorship of Sustainable Construction represented in the lookKIT magazine “BAUEN”

In this year’s third edition “BAUEN” of the KIT magazine for research, teaching and innovation “lookKIT”, three different articles report on research and other topics taking place at the Professorship of Sustainable Construction at the Karlsruhe Institute of Technology.

“We Have to Build Simpler, Purer and Smarter” © lookKIT

Under the title “Realizing recycling-oriented Construction”, Dr. Stefan Fuchs conducted an interview with Prof. Dirk E. Hebel, Sandra Böhm and Daniela Schneider from the Professorship of Sustainable Construction. The topics of the conversation range from the protection of resources to the problem of land consumption and the need for new forms of living. According to the researchers, in order to anchor the circular economy in construction, it is also necessary to use biological materials in order to close the resource gap.

The spread of such materials can be promoted by including environmental costs in materials of fossil origin. In addition, architects have to start planning again with traditional and other simple joining techniques in order to ensure the correct use and quality-preserving dismantling of materials. Hebel, Böhm and Schneider place great hopes in the introduction of a material pass to anchor digitization and documentation in the construction industry. Finally, the author also points out a video with Prof. Dirk E. Hebel on the question “Why build sustainably?”.

“The Future City as Resource Supply” © lookKIT

In “The Future City as Resource Supply” by Sandra Wiebe, the RoofKIT team demonstrates that it is possible to integrate the building sector in a functioning circular economy. Taking part in the Solar Decathlon Europe 2021/22 the team is developing a concept for heightening the roof of Café ADA in Wuppertal. In a reduced on-scale version, they will realize their project on the Solar Campus in Wuppertal in June 2022.

The project is composed of three important topics of the implementation of circular economy in the construction sector: to use the built environment as a new mine, to enable buildings to be fully disassembled after use and to harvest energy sustainably in order to reach climate neutrality. According to the head of project Prof. Dirk E. Hebel, RoofKIT’s design is of relevance to novel, socially centered living spaces supporting future-oriented urban society.

An online version of the article is available here. Find out more about the RoofKIT team here.

“The Construction Sector needs a Radical Turnaround” © lookKIT

Two architecture students campaign for a sustainable future of the construction sector as a whole with their newly founded local group of the “Architects for Future” in Karlsruhe. Alisa Schneider and Elena Boerman both did their master thesis on adaptive reuse projects at the Professorship of Sustainable Construction in summer 2021.

The author of the article, Regina Link, points out their central focus of a radical turnaround in the construction sector. In the name of their Germany-wide association, the two graduates call on people to consider the entire life cycle of buildings and thus break through the linear system of construction. Society must become aware of the value of buildings and the resources they contain: The goal must be to make building and rebuilding a circular system in which waste no longer exists and materials are used in and removed from buildings for reuse and recycling.

An online version of the article is available here. Find out more about the association Architects for Future here.

“A home for the future – climate-friendly building and living” – WELTWUNDERKUGEL podcast by SWR

The climate podcast WELTWUNDERKUGEL from SWR deals with topics related to the function of our planet. The makers are interested in understanding what defines our earth and the climate and how we can hand over a healthy earth to future generations.

The current episode “A home for the future – climate-friendly building and living” is about sponge cities, high-rise forests, eco-villages and biological building materials. In the search for the “Home of the future”, voices from science and society are heard and various projects on the topic are presented by the SWR1 editor Christiane von Wolff.

Podcast WELTWUNDERKUGEL © SWR1

In this context, Dirk E. Hebel from the KIT Professorship of Sustainable Construction addresses the idea of sustainable development. He also reports on the many possible uses of mushroom-based materials in the construction industry and on dealing with today’s building stock. “Garbage as a design error” is the keyword here: it is important to understand that the consistent recycling economy in the construction industry is the only way to seriously implement resource conservation in the construction industry.

Listen to the full episode here.

“Urban Mining” – Die Sendung mit der Maus

How do we want to live in the future? And how can we also be sure in the future that there will be enough raw materials to provide everything needed in daily life? Clari, Jana, Ralph and André from the “Sendung mit der Maus” are looking into securing raw materials and urban mining.

For this purpose, they are opening a future flat-sharing community for four weeks in the Urban Mining and Recycling Unit in the NEST research building on the EMPA campus in Dübendorf, and from there they are exploring where and how the various components of the research unit were produced.

The four-part series Urban Mining from “Die Sendung mit der Maus”

The first part is about the recycling of bricks into new masonry units. The focus is also on the MycoLab of the KIT in Karlsruhe and the production of insulating material from mycelium there. The second episode shows the viewers the production process of glass ceramics and plate material from melted plastic. The third episode deals with the production of table tops from used beverage cartons and with recyclable carpets. The fourth episode focuses on technical innovations and the deconstruction of materials from urban mining.

The four-part series “Urban Mining” from the “Sendung mit der Maus” conveys an understanding of the responsible use of our raw materials in a child-friendly way.

“Hello Future: Door opener day with the mouse 2021”

Hello Future: Door opener day with the mouse © WDR

At the “Door opener day with the mouse”, the 3 October 2021, upcoming ideas, innovative plannings, exciting projects and much more will be presented to children under the motto “Hello Future” all over Germany. One of the numerous participatory activities will take place at the KIT in Karlsruhe.

At the MycoLab at KIT, the Professorship of Sustainable Construction at the Faculty of Architecture, Prof. Dirk Hebel, is conducting research on alternative building materials. The team is working on the conversion of organic waste into alternative, cultivated and biological building materials. This involves the use of mycelium, the route of mushrooms, which is fed with biological waste so that stable, pressure-resistant forms can subsequently be realized. 

Impressions of the MycoLab © Professorship Sustainable Construction

The MycoLab has already been featured by ZDF PUR+ last year, and in the program “Sendung mit der Maus” on its 50th anniversary a few months ago.

On the “Door opener day” the MycoLab team aims to show the participating children how alternative sustainable resources can be regrown faster than wood without any negative impacts on our forests and biodiversity as well as our climate by utilizing the wood and agricultural waste resources and turning them into sustainable, biobased and green building materials with the power of mushrooms.

To join the event, please registrate here.

“Die Maus” film set in the UMAR unit

On the occasion of the 50th birthday of “Die Maus”, numerous special episodes are being filmed this year. In this context, “Die Sendung mit der Maus” also visited the Urban Mining and Recycling (UMAR) housing and research unit of the Swiss research institute Empa at “NEST” in Dübendorf near Zurich in Switzerland.

People on the film set © André Gatzke

In the middle of June, NEST Innovation Manager Enrico Marchesi invited Prof. Dirk E. Hebel and Sandra Böhm from the Professorship of Sustainable Construction to present the housing unit, the building materials used there, and the construction and material concept to the viewers of the “Sendung mit der Maus” after a brief welcome. The Urban Mining and Recycling Unit of the EMPA is still one of a few lighthouse projects of circular construction. Many innovative, forward-looking construction techniques are used in exemplary applications, which allow the sorted disassembly and the later reuse of all used materials. The unit was created in 2017 by Werner Sobek with Dirk E. Hebel and Felix Heisel, Bernd Köhler and Frank Heinlein.

Prof. Dirk E. Hebel interviewed by Jana © FLASH Filmproduktion

Ralph, Jana, Sihan, André from “Die Sendung mit der Maus”, Prof. Dirk E. Hebel, Sandra Böhm and Enrico Marchesi were present for the filming session in the Urban Mining and Recycling Unit at NEST at EMPA in Dübendorf, Switzerland. The programme will be broadcast as a special episode as part of the Mouse’s 50th birthday events in August 2021.

More information about the 50th birthday of “Die Maus” here.

NANO by 3sat: Sustainable construction with jeans and mycelium

In the current episode of NANO, a scientifical documentation series by 3sat, the Urban Mining and Recycling Unit of the EMPA in Zurich has been published as one of the lighthouse projects of sustainable construction. The presenters also visit the KIT mycelium laboratory at the Westhochschule where the fungal mycelium is researched by Prof. Dirk E. Hebel and his team.

The short contribution shows the inevitable relevance of an increased use of recycled materials and renewable raw materials as the basis for the building materials of the future.

UMAR in “Nachhaltiges Bauen mit Jeans und Pilzen” © NANO, 3sat

Watch the full episode of NANO on 3sat here.

KIT Faculty of Architecture – Materials Library – HIWI WANTED!

Recruitment from 1 September 2021
If interested, please email sandra.boehm@kit.edu by 1 July.

Dear students,

the Materials Library is looking for support to continue building its database. A dedicated team is working here cooperatively and meets regularly to exchange ideas – currently still online, hopefully soon live and in colour again. 

Tasks:
– Active cooperation in building up the database, analysing and improving the structure.
– Researching building materials
– Evaluation of the research results and their transfer into comprehensive material data sheets.

The job requires you to work independently and on your own responsibility. You will be actively involved in the team. If you are interested, please send an e-mail to sandra.boehm@kit.edu by 1 July. In the e-mail, you are welcome to introduce yourself briefly and explain in one or two sentences why you are interested in the position.

If you have any questions in advance, please contact Thomas Kinsch (thomas.kinsch@kit.edu).

You will then receive initial feedback from us from 5 July.
The recruitment is scheduled for 1 September.

Two winners of the aed neuland 2021 at the Professorship of Sustainable Construction

Regina Gebauer and Anne-Catherine Greiner are two of a total of ten winners of the aed neuland 2021 young talent competition in the Architecture and Engineering category. They each received the silver award for their semester designs, which were both created at the Professorship of Sustainable Construction at the Karlsruhe Institute of Technology and were supervised by Prof. Dirk E. Hebel, Manuel Rausch and Daniel Lenz.

In her project “Bis sich alles bewegt” (“Until Everything Moves”), Regina Gebauer deals with the inward densification of urban spaces in European city centres in an exemplary manner in terms of sustainability. The addition to an existing building in Wuppertal with the clear formulation of the joint between old and new convinced the jury. With the consistent implementation of the themes of circular economy in construction, single-variety construction and the Urban Mine, it demonstrates a self-confident architectural stance.

Find out more about the project here.

Anne-Catherine Greiner proposes a playful solution for the Mea Nork kindergarten of the NGO “Smiling Gecko” near Phnom Penh in Cambodia as an extension of the existing school. Taking into account climatic conditions and honouring local community and ecosystems, the organic structure offers children the opportunity to learn with and from each other. By using natural materials and applying local building traditions, it shows a way to address environmental and social issues through architecture.

Find out more about the project here.

More information about the competition and all winners here.

Urban Mining and Circular Construction

Book Cover © Martin Kjer, Fraunhofer IRB Verlag

The book “Urban Mining and Circular Construction. The city as raw materials warehouse”, published in May 2021, edited by Dirk E. Hebel and Felix Heisel, questions the throwaway mentality currently practiced in the construction industry: raw materials are taken from established natural cycles, used and then disposed of without using or even recognizing their potential for continuous value creation.

Materials are consumed and used instead of being borrowed from biological or technical cycles and then returned there. This linear approach has profound consequences for our planet. We are fundamentally changing existing ecosystems.


International experts examine from very different perspectives, and on the basis of future-oriented project examples, how this paradigm shift can succeed and how the technical, logistical and organizational challenges of a circular economy can be met with completely new methodological approaches. A collection of selected material examples shows the special aesthetics and value of reused and recycled building materials and components.

Through positive incentives and impulses, the book shows possible ways to a circular construction industry – because a complete circular economy must become the central and common goal of our society in order to conserve our natural resources.


Images: Insights in the publication © Fraunhofer IRB Verlag
More information about the publication on www.baufachinformation.de .

Exhibition in the DAZ Berlin: Concern about the building stock

The DAZ in Berlin hosts an exhibition by the BDA as a plea for the preservation of the existing. In the exhibition, named after the publication “Sorge um den Bestand. Zehn Strategien für die Architektur” published in November 2020, architects and urbanists present their concern for the existing building stock, for grown social structures and for the continuation of the earth.

Movie about the exhibition © camera: Fred Plassmann and Till Kind, cut: Fred Plassmann

In addition to Dirk E. Hebel from the Professorship of Sustainable Building at KIT, Katja Fischer, Roland Gruber, Jörg Heiler, Ayşin İpekçi, Maria Isabettini, Simon Jüttner, Jan Kampshoff, Kamiel Klaasse, Andreas Krauth, Urs Kumberger, Tabea Michaelis, Peter Nageler, Michael Obrist, Ben Pohl, Eike Roswag-Klinge and Verena Schmidt are among the participating architects and urban planners.

The exhibition of the Bund Deutscher Architektinnen und Architekten BDA was curated by Olaf Bahner, Matthias Böttger and Laura Holzberg. They invite you to read the permanence of what has been built and what has grown and plead for further thinking and careful repair of living spaces and living cultures. They show how new perspectives arise in the urban and regional context through networked approaches, through cooperation oriented towards the common good and through participation concepts. For the future, the buildings erected today, strategies for the circular use of materials and an openness to future requirements are being developed.

The exhibition takes places in the DAZ in Berlin from 03 December 2020 until 27 June 2021. Visiting the exhibition is possible again since 21 May 2021.

More information about the exhibition on www.bda-bund.de or on www.daz.de .
Take a look at the book publication here .

“How will we live together?” – La Biennale di Venezia

From 22 May until 21 November 2021 La Biennale will take place in the Arsenale and the Giardini in Venice. The curator Hashim Sarkis calls on architects to imagine spaces in which we can generously live together in different ways, in the context of widening political divides and growing economic inequalities.

Last year, the team ‘ETH Zurich | KIT Karlsruhe | EiABC Addis Ababa’, led by Marc Angélil and Dirk E. Hebel, developed a contribution entitled “Quo Addis? Conflicts of Coexistence” to the major architecture exhibition. In an urban model of Addis Ababa, the historical and architectural development of the Ethiopian capital from the age of Menelik’s empire in the 19th century until today is depicted in an abstract and at the same time precise and clear way. A film produced by Jenny Rodenhouse completes the exhibition contribution and brings the visitor closer to life and coexistence in the different quarters of the city.

The entire installation was brought to Venice at the end of April by a team of six around Dirk E. Hebel and Katharina Blümke and was set up in the Arsenale. The construction of the model was documented by the team in a short film:

Film: “Quo Addis? Conflicts of Coexistence” © Elena Boerman

Photography: Katharina Blümke, Elena Boerman, Luca Diefenbacher
Film: Elena Boerman

More information about the project “Quo Addis? Conflicts of Coexistence” here.
Find out more about La Biennale di Venezia here.

Urban Mining – New episode of the RoofKIT podcast “Fighting 40%”

The podcast “Fighting 40%” was created as a part of the international competition Solar Decathlon Europe 21. The RoofKIT podcast team presents topics relating architecture and urban design, but above all sustainability and future-oriented thinking.

In the current second episode released on 10 Mai 2021, two podcast team members discuss about “Urban Mining” with Prof. Dirk E. Hebel, the Faculty Advisor of team RoofKIT.

Podcast “Fighting 40%”, episode “Urban Mining” © Team RoofKIT

Since the post-war period, we have been surrounded by an anthropogenic warehouse of over 50 billion tons of material. This warehouse grows every year by another 10 tons per inhabitant. Much of it is located in buildings. Wouldn’t this warehouse be a potential resource for the construction industry of the future?

Listen to the podcast episode on Campusradio Karlsruhe or on Spotify.
To find out more about Team RoofKIT, visit their RoofKIT weblog for SDE21.

“The construction industry needs a radical turnaround”

The two architecture master’s students Alisa Schneider and Elena Boerman report in the KIT student magazine clicKIT about their activities in the local group of the nationwide association Architects for Future in Karlsruhe.

In their work, the two are committed to ensuring that the building industry experiences a sustainable and future-oriented turnaround. Among their demands as Architects for Future are the critical questioning of building demolitions, the increasing use of healthy, regional and climate-positive materials instead of cheap and foreign materials, circular construction and the perception of the urban mine as a storehouse of materials, as well as the preservation and creation of living spaces by avoiding new land sealing.

Elena Boerman and Alisa Schneider (A4F Karlsruhe) © Bernd Seeland

Read the full article in the KIT student magazine clicKIT here.

‘On Cities’ Masterclass Series

The Norman Foster Foundation (NFF) presents the ‘On Cities’ Masterclass Series, a series of thirty-minute-long masterclasses which explores the most pressing and compelling topics related to contemporary cities. Given by twenty leading experts in the fields of architecture, urbanism, economics and mobility, this video series supports the NFF’s extensive educational programme by promoting an exchange of knowledge across a range of geographic and disciplinary perspectives.

Although cities may offer significant advantages for inhabitants, urbanisation is widely regarded as one of the fundamental challenges for public health, social equity and sustainability. To meet these challenges, speakers touch themes such as urban leadership, equity, urban informality, urban food systems, urban sustainability, urban materiality, urban mobility, and urban economics, among other key topics.

© Norman Foster Foundation

In his introductory masterclass to the series, Norman Foster (President, Norman Foster Foundation) considers the future of cities and the crises that cities have overcome throughout their history, arguing that the current pandemic has accelerated important trends already in motion, such as a return to green and open public space and compact urban areas that provide inhabitants with services and leisure within a walking distance:

© Norman Forster Foundation

In light of the finite nature of the world’s resources, Prof. Dirk E. Hebel (Professorship of Sustainable Construction, Karlsruhe Institute of Technology) explores the ways in which materials can be reused through ‘urban mining’, referencing the research of new recycled and organic materials in his masterclass, titled ‘Sustainable Materials’:

© Norman Forster Foundation

The contributing speakers also include the following experts:
Yvonne Aki-Sawyerr (Mayor of Freetown, Sierra Leone)
Joseph G Allen (Director of the Healthy Buildings Program
T. H. Chan School of Public Health, Harvard University)
Deborah Berke (Dean, Yale’s School of Architecture)
Luis Bettencourt (Inaugural Director, Mansueto Institute for Urban Innovation, University of Chicago)
Richard Burdett (Director, LSE Cities)
Vishaan Chakrabarti (William W. Wurster Dean, College of Environmental Design, University of California, Berkeley)
Robin Chase (Cofounder, ZipCar)
Fonna Forman (Founding Director, Center on Global Justice, University of California, San Diego)
Sou Fujimoto (Founder, Sou Fujimoto Architects)
Edward Glaeser (Fred and Eleanor Glimp Professor of Economics, Harvard University)
Francis Kéré (Founder, Kéré Architecture and Kéré Foundation)
Anupama Kundoo (Principal, Anupama Kundoo Architects)
Kent Larson (Director, MIT City Science Research Group)
Giuseppe Sala (Mayor of Milan, Italy)
Carolyn Steel (Director, Kilburn Nightingale Architects)
Tim Stonor (Managing Director, Space Syntax)
Belinda Tato (Cofounder and Codirector, Ecosistema Urbano)
Theresa Williamson (Founder and Director, Catalytic Communities)

Watch the full ‘On Cities’ Masterclass Series on YouTube here.

RoofKIT – On what the team is addressing, what the goals are and how it intends to achieve them

Urbanisation in Europe reached approximately 75%, and the tendency is growing; thus, European cities face several urgent problems, which should be solved to comply with the EU targets to fight climate change.

To name a few critical problems aligned with the scope of the project: 

  • Available living space is getting rare within the existing boundaries due to the increasing rate of migration from people into cities and the constant growth of the consumption of square meter per person.
  • Environmental quality in cities is strongly affected by pollution, mainly caused by combustion (traffic, heating), and increasing temperatures as well as heat waves during the summer due to urban heat island effects.
  • Most buildings of the existing building stock in European cities were built with a low energy efficiency standard which results in high energy consumption (mostly for heating) and related CO2-emissions.
  • Lastly, the building materials are not only slowly getting scarce and affect the quality of the living spaces, but the building sector is also responsible for a large amount of waste.

To tackle this, Team RoofKIT choses a holistic approach: The extension of buildings with an additional living unit requires combined urban design and architectural strategies, considering the specific requirements of the site but at the same time seeking a more general solution regarding adding living units on cities’ rooftops. RoofKIT‘s goal here is to take up the local potentials of the site and neighbourhood and improve it together with the building design by creating synergies. Together with the outdoor space, the extension will be an exemplary project that will fit into various other contexts in the neighbourhood, the city, and beyond, thanks to ist modularity. It is important that the outdoor space makes no distinction between residents, neighbours or visitors enabling flexibility, multiple uses, capacity, creativity and freedom of use.

Whole Building Design Approach
Although topping up allows creating living space with very low impact on neighbours and users of the existing building, RoofKIT decided to enhance the current situation and to upgrade the existing building by economic, social and energetic terms. Therefore, the interior layout is revised according to the needs of the different functions. Based on the analysis of the existing functions of Café Ada, strategies have been developed to strengthen them further: The ball room that attracts tango dancers from all parts of the world as well as theexisting sleeping facilities for them are not appropriate to the situation.  For this reason, an ‘urban gap’ is created, which forms a transition between the existing structure and the extension and presents the dance hall to the public. The load bearing structure from the early 20st century will be further used and partly reinforced.

Whole Building Design Approach © Team RoofKIT

House Demonstration Unit Design Approach
In order to transfer the concept from the overall building to the house demonstration unit, RoofKIT has chosen the southwest corner of the building as a cutout. It is perceived as a two-story structure that represents the two main components of our building: The residential units and the urban gap. Just as in the overall design, the HDU is built in modular timber construction and consists of a total of four modules. The module that is placed in front of the others in a transverse direction functions as a terrace and represents the shared spaces of our building design. Inside, the interior design is also characterized by modularity in the form of custom-made furniture, which allows flexibility and is especially space-saving at the same time. Furthermore, the open floor plan allows for high space efficiency since no pure traffic zone exists.

Structural Design
The challenge for the RoofKIT design is to base on an already existing building, whose bearing structure has almost reached its load limits. The structural design of the project keeps the established building almost free from additional loads. This works because the thick external brick walls bears the load of the addition. An examination of the walls and foundations will show whether they need to be strengthened. The internal supporting structure has to be reinforced, to bear the increased live loads of the ball room in the urban gap. To keep the additional loads for the top-up to a minimum, a lightweight wooden frame construction was chosen.

Solar System Integration
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. As part of the goal, the sizing of the RoofKIT’s PV and battery system will focus on a high self-coverage of the energy demand as well as on stabilising effects of the grid. In other words, the feed-in of surplus electric energy during solar peaks and heavycharging of grid energy during peak load times will be avoided by a smart building energy management including the building and mobility solutions. A balanced energy threshold over the year (consumption and generation) as a function of available solar radiation, actual energy demand and grid requirements will be achieved by load shifting or any other sort of demand-side management. RoofKIT does not regard the use of solar systems as a mere necessity but as a possibility to design the building on an architectural level. 

Solar System Integration © Team RoofKIT

For better insight, RoofKIT’s second short film reveals more details and goals about the project. Stay Tuned!

Theory and Concept Video © Team RoofKIT

RoofKIT links: https://linktr.ee/RoofKIT
Instagram: www.instagram.com/roofkit_
Solar Decathlon Europe 21: www.SDE21.eu
Instagram: www.instagram.com/sde21_wuppertal

Urban Mining & Recycling (UMAR) on Instagram @neweuropeanbauhaus

The Urban Mining and Recycling unit (UMAR) in NEST was listed as a showcase project of circular construction by the New European Bauhaus on 6th April 2021. The project shows how a responsible approach to dealing with our natural resources can also go hand in hand with an appealing architectural form. Life-cycle thinking has led the design process: all the resources required to construct the unit are fully reusable, recyclable, or compostable.

Instagram Post about UMAR © neweuropeanbauhaus

The Urban Mining and Recycling housing and research unit in NEST, the modular Research and Innovation Building of Empa in Dübendorf (Switzerland), is demonstrating what a paradigm shift in the construction industry reacting to the limitation of the world’s natural resources might look like. Turning away from linear material-consumption and towards an economy of material recycling, multiple use, alternative construction methods and the use of entirely separable materials – UMAR works as a material laboratory but also as a material depot. It is a proof that the responsible use of natural resources, the recycling of materials and modern architecture can go hand in hand.

The building design was created by Werner Sobek in collaboration with Dirk E. Hebel and Felix Heisel, Bernd Köhler and Frank Heinlein.

Visit the Urban Mining and Recycling (UMAR) website here.

Learn more about the New European Bauhaus on their website or on Instagram.

Info Session RoofKIT

Komm ins Team RoofKIT! Solar Decathlon Europe 2021
06.04.2021, 17 Uhr auf zoom

Sommersemester 2021: Mitarbeit am SDE21
(Seminar, Praktikum,…)


Thema: Introduction to RoofKIT
Uhrzeit: 6.Apr..2021 05:00 PM Amsterdam, Berlin, Rom, Stockholm, Wien

Zoom-Meeting beitreten
https://kit-lecture.zoom.us/j/63671528170?pwd=MFd6czlzQXNMWDBZdUhYWTJ4ZWJrUT09

Meeting-ID: 636 7152 8170
Kenncode: 567334

Mehr Informationen über RoofKIT und den SDE21: https://roofkit.de

planet e. by ZDF: The trick with the rubble

The current episode of planet e., a documentation series by ZDF, examines the state of sustainability in the German construction industry and shows perspectives for building with recycled concrete and products out of construction waste.

The KIT Faculty of Architecture © planet e. (ZDF)

This is because the construction industry in Germany is responsible for more than half of the waste generated, accessible raw materials are becoming increasingly scarce, and the production of building materials such as cement causes greenhouse gases that contribute significantly to the warming of the atmosphere. Nevertheless, construction waste in Germany still ends up in landfills to a large extent. Only a few companies in Germany work in the sense of a circular economy when demolishing buildings and take the responsible initiative to recycle the resulting materials.

Urban Mining and Recycling Unit, EMPA Zurich © planet e. (ZDF)

The editors compare German laws with those in other European countries and highlight what the German “Kreislaufwirtschaftsgesetz” could achieve. For example, in the Netherlands or Switzerland, sustainable construction with innovative building materials and assembling methods is particularly important in the construction of public buildings. In this sense, the Urban Mining and Recycling Unit of the EMPA in Zurich has been established, which is one of a few lighthouse projects of circular construction.

Impressions of the KIT mycelium laboratory, Professorship of Sustainable Construction © planet e. (ZDF)

Dirk E. Hebel, sustainability researcher, architect and professor at the Faculty of Architecture at the Karlsruhe Institute of Technology, was also involved in this project. He calls for a clear and responsible change of course in the German construction industry. The increased use of recycled materials and renewable raw materials as the basis for the building materials of the future, such as the fungal mycelium he is researching with his team at the Karlsruhe laboratory, are inevitable and are imminent for the construction industry in Germany.

Prof. Dirk E. Hebel, KIT Professorship of Sustainable Construction © planet e. (ZDF)

Watch the full episode of planet e. on ZDF here.

Xenius by arte: Future building materials

In a new episode of Xenius by arte, the hosts Dörthe Eickelberg and Pierre Girard set out in search of alternative building materials.

Future building materials: Mycelium, paperboard and popcorn © arte

Up to now, the building industry has mainly used concrete and steel. In order to be able to build more ecologically and sustainably in the future, scientists are looking for alternative building materials. And there are some innovative ideas. Mycelium, paperboard or popcorn – nothing is impossible!

Interview with Prof. Dirk E. Hebel © arte

The hosts also interview Prof. Dirk E Hebel about his research with mycelium as an alternative, cultivated biological building material. The mycelium is simply fed with biological waste and can be shaped into stable, pressure-resistant forms. In the Urban Mining And Recycling Unit, which was created in collaboration with researchers from the ETH Zurich, many other innovative, forward-looking construction techniques are also used in exemplary applications, which allow the sorted disassembly and the later reuse of all used materials.

In this episode of Xenius, some other ideas for future building materials are presented. For example, scientists of the Technical University of Darmstadt are researching a way to build houses out of cardboard without any additional wood coatings or protective foils. In Munich, a visionary architect is growing trees into each other in such a controlled way that load-bearing structures are formed that will support bridges or even entire houses years later. Prof. Alireza Kharazipour in Göttingen aims to replace plastic materials as much as possible with the renewable raw material corn.

Watch the full episode on arte.tv here.

Further information:
http://nest-umar.net
https://www.wernersobek.de
https://changelab.exchange

UMAR and Mycelium Research in “Die Sendung mit der Maus”

In the current 50th anniversary episode of “Die Sendung mit der Maus”, Armin Maiwald, one of the hosts, is looking for how people will live in the future. Therefore he visits the Urban Mining and Recycling Unit (UMAR) created by Werner Sobek with Dirk E. Hebel and Felix Heisel.

The UMAR Unit © WDR Die Maus

The building design demonstrates how a responsible approach to dealing with our natural resources can go hand in hand with appealing architectural form. The project is underpinned by the proposition that all the resources required to construct a building must be fully reusable, recyclable or compostable. This places life-cycle thinking at the forefront of the design: Instead of merely using and subsequently disposing of resources, they are borrowed from their technical and biological cycles for a certain amount of time before being put back into circulation once again. In that way UMAR functions simultaneously as a material laboratory and a temporary material storage.

Dr. Alireza Javadian shows the material’s strength © WDR Die Maus

After having visited UMAR, Armin Maiwald also takes a look at the mycelium laboratory in the Westhochschule in Karlsruhe. Here our researcher Dr. Alireza Javadian shows the TV host of the children’s program how the mycelium grows in the laboratory, how it is shaped and how resistant it is afterwards.

Watch the full episode of “Die Maus” on WDR here.

Mycelium Wall in the UMAR Unit © WDR Die Maus

Results of the Stegreif: “Lern doch wo du willst”

In form of a “Stegreif”, the Professorship of Sustainable Construction jointly with the KIT Zukunftscampus, launched a competition for future outdoor learning spaces at KIT campus. A structure was to be designed that would enable learning and working in an outdoor environment. The design was to be independent of a specific location but should be considered as a flexible object for many possible spots and create a recognizable landmark for the KIT community.

1st prizes: “KONRAD” (D. Faltien), “Lerninsel+” (A. Resch), “Lern doch, wo du willst” (M. Weber)
Acknowledgement: “toolKIT” (E. Boerman)

All proposals developed have a high degree of practicality and are basically suitable for implementation. During their judging session, the jury decided in favor of three first prizes and one acknowledgement. The three first prizes were given to the projects of Dominic Faltien, Alexander Resch and Milena Weber, the acknowledgement was given to the work of Elena Boerman. The three first prize projects will be further elaborated in regards to the construction and consequently realization of a prototype.

More information soon on https://www.zukunftscampus.kit.edu

RoofKIT – KIT team participates at the Solar Decathlon Europe 21 competition within the field of sustainable construction

“The future city makes no distinction between waste and supply.”
Joachim Mitchell, New York

How can we create social-economic fair living space without destroying our natural resources? And how can we create ecologically sensitive building structures, acknowledging the finite state of natural material supplies, and avoid any state of “waste”, but understand the existing building stock as an urban material bank for the future? How can we create alternative solar harvesting systems as part of an urban mining ideology and propose paradigm-shifting innovations as first-of-their-kind worldwide? And how can we apply urban mobility systems as an integrative part of the immobile building sector?

The Solar Decathlon Europe 21 (SDE21) is a publicly held competition for sustainable building and urban living, which will take place in 2022 in Wuppertal, Germany, where it will be judged. The motto: „design-build-operate.“ This means that, unlike in other architectural competitions, the participating teams will actually build their designs. The aim of the competition is to find innovative and at the same time tangible solutions to the technical, architectural and social problems we face in our cities.

The first Solar Decathlon in 2002 in Washington D.C. © Solar Decathlon

The first Solar Decathlon was held in 2002 by the Department of Energy of the United States on the National Mall in Washington D.C., followed in 2010 by the first European version in Madrid. With the SDE21 comes the world‘s 21st edition of the competition for the first time to Germany – with a new and urban profile and the question of how we should deal with limited ressource in future constructions and how to apply the necessery and politically demanded concept of a circular economy within the building industry.

18 university teams from 11 countries will construct fully usable demonstration units of approx. 80 sqm each on the Solar Campus in Wuppertal which is locatad on the Utopiastadt site in 2022. The teams will compete with their buildings in 10 different disciplines. 

The RoofKIT team of the KIT Faculty of Architecture will address those urgent questions in the competition by exploring a gigantic surface resource within our cities: rooftops. By applying the idea of the circular economy towards the identification of new possible building sites within our cities, and by applying the concept also towards the material as well as the energy question, the project will show that it is possible to integrate the building sector in a functioning sustainable system already today. The city of today will be the resource for the city of tomorrow. It needs a new generation contract for both – the society and young architects, engineers and planners at large.

Different Views © Team RoofKIT

The impact of such a radical paradigm shift is not debatable. In the light of a world-wide climate crisis, we need to shift our way of how we think, design and construct architecture. RoofKIT will be a demonstrator for a new generation of buildings, that take their responsibility seriously. It will show that social sustainability in form of affordable high quality living space interacting with their neighbourhoods is a question of good and informed design, that solar harvesting will not be an accessory but a mandatory part of any design process and mobility concept and that resources coming from the urban mine and designed as a material bank can and will be interwoven to a synergetic resilient design as they are enabled to move unrestrictedly in a future circular economy.

More information on www.roofKIT.de and the www.SDE21.eu

       
 
 
 
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:  
 

    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.

     
     

    Kindergarten Kambodscha

    March 30, 2021

    Fachgebiet Nachhaltiges Bauen KIT, Prof. Dirk E. Hebel, Elena Boerman, Daniel Lenz, Manuel Rausch (Hrsg.) (2021), Kindergarten Kambodscha. Professur Dirk E. Hebel. Master Studio KIT Karlsruhe Sommer 2019, Karlsruhe 2021.

     
     

    Concern of the building stock – Ten strategies for architecture

    March 16, 2021

    Welter, T., (2020), Sorge um den Bestand: Zehn Strategien für die Architektur, in: der architekt, 6/2020, p. 76.

     
     

    local material, local design, local built.

    March 8, 2021

    Böhm, Sandra (2020), Local material, local design, local built., in: archlab.docs #3, KIT Research Preprint, Karlsruhe 2020.