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The different ‘places’ where one discusses or presents work, and the particular quality of the environment where these take place. These spatial metaphors range in character from being in-progress, pedagogical or informal to communicative, informational or archival.
The variety of media and formats in which research outputs can take shape, engaging different forms of communication, reaching particular audiences and accomplishing specific purposes.
The different ways in which one person ‘knows more than she can tell’ depending on the character and origin of the knowledge. These different forms of tacit knowing describe its specificity: pointing out whether something is implicit because it is unconscious, unrecognized, unsaid, uncodified etc.
The keywords, fields and concepts that situate the particular contributions of the network within broader literature and schools of thought.
The different phases and forms of dissemination that research and academic outputs can take, indicating the kind of publication, the progress of the work or the forum where they are presented.
The idioms that reflect the multinational character and vocalize the conversations of the TACK network and its outputs.
The members, contributors, facilitators, communities and organizations that build up, around and underneath the TACK Network and participate, in one way or another, in the endeavour of addressing the question of Tacit Knowledge in architecture.

Embedded Knowledge

Knowledge that cannot be made fully explicit because it exists in objects, buildings, artworks, or other material artifacts; or, because it exists sub- or unconsciously within individuals and/or communities.

Lecture / Talk

Stories of Houses: investigating ordinary practices in post-War Milan

In her talk Stories of Houses: investigating ordinary practices in post-War Milan (held in the framework of TACK training axis 2, module 1 “Probing Tacit Knowledge” on 26 April 2021), Gaia Caramellino questioned the practices of tacit knowledge embedded in the particular cultural network engaged in the design and construction of post-WWII Milan ordinary residential environment.
Gaia Caramellino
Lecture / Talk

April 26, 2021

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Stories of Houses: investigating ordinary practices in post-War Milan

Gaia Caramellino
In her talk Stories of Houses: investigating ordinary practices in post-War Milan (held in the framework of TACK training axis 2, module 1 “Probing Tacit Knowledge” on 26 April 2021), Gaia Caramellino questioned the practices of tacit knowledge embedded in the particular cultural network engaged in the design and construction of post-WWII Milan ordinary residential environment.
Exhibition TACK Exhibition Object

Tactiles

Tactiles are relational objects that foster interactive approaches of un-learning restrictive spatial codes, re-learning through encounters of intimacy, embodiment and connectedness, and co-learning through shared performative experiences.
Katharina Kasinger
Exhibition TACK Exhibition Object

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Tactiles

Katharina Kasinger
© TACK
Tactiles are relational objects that foster interactive approaches of un-learning restrictive spatial codes, re-learning through encounters of intimacy, embodiment and connectedness, and co-learning through shared performative experiences.
Conference Paper Paper Session ACTORS TACK Conference Proceedings

In Quest of Meaning – Revisiting the discourse around “non-pedigreed” architecture.

ABSTRACT
In their practice, architects never refer to something as “pedigreed” to describe their work. However, during the 1960s, Bernard Rudofsky introduced the term "non-pedigreed" architecture, which he attributed to edifices not designed by formally trained architects, but for various reasons, their status exceeds that of the "mere building". As a fact, since explicit knowledge around “non-pedigreed” architecture is scarce, architects rely mostly on interpretations. This contribution revisits several of these interpretations through the perspective of its "actors," referring to the scholarly work of selected architects, and it is structured into three parts. The first section introduces the motivations behind the study of "non-pedigreed" architecture, delving into questions of aesthetics and authorship. The second part explores the fruitful contradictions arising from the first section and focuses on the relationship between vernacular architecture and the concept of Time, as well as the development of craft skills. Finally, the third part examines specific case studies where the value of vernacular architecture shifts from being merely a reference point to becoming an integral part of the architectural production process.
Vasileios Chanis
Conference Paper Paper Session ACTORS TACK Conference Proceedings

June 21, 2023

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In Quest of Meaning – Revisiting the discourse around “non-pedigreed” architecture.

Vasileios Chanis
Figure 1 and Figure 2: Jacques Tati, Mon Oncle, 1958 (Directed and produced by Jacques Tati)
ABSTRACT
In their practice, architects never refer to something as “pedigreed” to describe their work. However, during the 1960s, Bernard Rudofsky introduced the term "non-pedigreed" architecture, which he attributed to edifices not designed by formally trained architects, but for various reasons, their status exceeds that of the "mere building". As a fact, since explicit knowledge around “non-pedigreed” architecture is scarce, architects rely mostly on interpretations. This contribution revisits several of these interpretations through the perspective of its "actors," referring to the scholarly work of selected architects, and it is structured into three parts. The first section introduces the motivations behind the study of "non-pedigreed" architecture, delving into questions of aesthetics and authorship. The second part explores the fruitful contradictions arising from the first section and focuses on the relationship between vernacular architecture and the concept of Time, as well as the development of craft skills. Finally, the third part examines specific case studies where the value of vernacular architecture shifts from being merely a reference point to becoming an integral part of the architectural production process.
Book chapter TACK Book

Forêt DesCartes: Images, fragments, and repertoires in Kieckens’s tacit knowledge

ABSTRACT
Christian Kieckens' archive at the Flemish Architecture Institute in Antwerp holds a curious object: the Foret DesCartes. It is a prototype of Kaartenstander (postcards display table stand) designed by Kieckens in 1995. The object is extremely simple: an MDF board with maple veneer on which are inserted 16 postcard holders made of bent iron rods arranged in a regular 6x4 cm grid. More than just an odd display of postcards, this small object is an operational tool for producing and transmitting architectural knowledge through the collection of images and their recomposition in space. The same cognitive mode that is represented by the Foret DesCartes can be found reflected within Christian Kieckens' key practices: the architectural trip and its communication within a Belgian and European community of practice, the use of photography as a documentation tool but also as a visual reflection on architecture, the transmission of knowledge through the medium of the illustrated book and of the exhibition, the teaching of architecture by means of examples and references. Currently underway at the Bergische Universität Wuppertal within the framework of the TACK network, the research project, ‘The Pictures on the Wall. The Composite Culture of a Contemporary Flemish Architect’, investigates Kieckens’s role as mediator between the transatlantic architectural culture of the 1980s and the local context of Flanders. The key assumption is that this process of cultural migration happened first of all at the tacit level. Kieckens’s tacit knowledge is primarily found in its fragmentary nature – as a repertoire of themes and images – as well as in its crucial relationship with a number of visual practices and media. This attitude is considered from an interdisciplinary perspective that integrates external viewpoints such as those of cultural studies, anthropology, and iconology. On this basis, Kieckens’s practices have been operatively addressed by means of a hybrid methodology, which combines bibliographic and archival studies with a series of performative approaches such as interviews and immersive ethnographic investigation, pedagogical re-enactment and experimental display, images collection and visual comparison. Within a curatorial secondment at the Flanders Architecture Institute VAi in Antwerp and a collaboration with Hasselt University, these approaches finally resulted in the exhibition, ‘Forêt DesCartes – Christian Kieckens and the Composite Culture of Architecture in Flanders’, which opened at the De Singel Centre in November 2022.
Filippo Cattapan
Book chapter TACK Book

November 1, 2022

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Forêt DesCartes: Images, fragments, and repertoires in Kieckens’s tacit knowledge

Filippo Cattapan
© TACK
ABSTRACT
Christian Kieckens' archive at the Flemish Architecture Institute in Antwerp holds a curious object: the Foret DesCartes. It is a prototype of Kaartenstander (postcards display table stand) designed by Kieckens in 1995. The object is extremely simple: an MDF board with maple veneer on which are inserted 16 postcard holders made of bent iron rods arranged in a regular 6x4 cm grid. More than just an odd display of postcards, this small object is an operational tool for producing and transmitting architectural knowledge through the collection of images and their recomposition in space. The same cognitive mode that is represented by the Foret DesCartes can be found reflected within Christian Kieckens' key practices: the architectural trip and its communication within a Belgian and European community of practice, the use of photography as a documentation tool but also as a visual reflection on architecture, the transmission of knowledge through the medium of the illustrated book and of the exhibition, the teaching of architecture by means of examples and references. Currently underway at the Bergische Universität Wuppertal within the framework of the TACK network, the research project, ‘The Pictures on the Wall. The Composite Culture of a Contemporary Flemish Architect’, investigates Kieckens’s role as mediator between the transatlantic architectural culture of the 1980s and the local context of Flanders. The key assumption is that this process of cultural migration happened first of all at the tacit level. Kieckens’s tacit knowledge is primarily found in its fragmentary nature – as a repertoire of themes and images – as well as in its crucial relationship with a number of visual practices and media. This attitude is considered from an interdisciplinary perspective that integrates external viewpoints such as those of cultural studies, anthropology, and iconology. On this basis, Kieckens’s practices have been operatively addressed by means of a hybrid methodology, which combines bibliographic and archival studies with a series of performative approaches such as interviews and immersive ethnographic investigation, pedagogical re-enactment and experimental display, images collection and visual comparison. Within a curatorial secondment at the Flanders Architecture Institute VAi in Antwerp and a collaboration with Hasselt University, these approaches finally resulted in the exhibition, ‘Forêt DesCartes – Christian Kieckens and the Composite Culture of Architecture in Flanders’, which opened at the De Singel Centre in November 2022.
Book chapter Interview Open Access Publication

Shot/Reverse Shot: A conversation on architecture, design and the climate emergency

A Conversation on Architecture, Design and the Climate Emergency with Rania Ghosn, El Hadi Jazairy & Peg Rawes facilitated by Rodney Harrison (RH)
Peg Rawes
Book chapter Interview Open Access Publication

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Shot/Reverse Shot: A conversation on architecture, design and the climate emergency

Peg Rawes
A Conversation on Architecture, Design and the Climate Emergency with Rania Ghosn, El Hadi Jazairy & Peg Rawes facilitated by Rodney Harrison (RH)
Online Teaching Module

Understanding Situated Tacit Knowledge through Southern Urbanist architectural practice approaches

© Jhono Bennett
Jhono Bennett Peg Rawes University College London, Bartlett School of Architecture
Online Teaching Module

February 15, 2023

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Understanding Situated Tacit Knowledge through Southern Urbanist architectural practice approaches

Jhono Bennett Peg Rawes University College London, Bartlett School of Architecture
© Jhono Bennett
© Jhono Bennett
© Jhono Bennett
© Jhono Bennett
© Jhono Bennett
© Jhono Bennett
Paper Session VECTORS TACK Conference Proceedings

History meets the Body. Re-enactment as a mode of architectural inquiry.

ABSTRACT
Although we normally think about ideas and discourses as disembodied entities, the truth is that tacit architectural concepts, specific ways of understanding history, time, and space, are inscribed into our built environments, and they can only be disentangled with the help of our own bodies, by performing actions within, in, and around buildings. This paper explores the use of re-enactments as a method for architectural historians, using Aldo and Hannie van Eyck’s own house as a case study. The researcher’s body informs the reflections and findings, from materiality to meaning, through the continuous and embedded experience of the space, a seventeenth century building were the Van Eycks lived from 1965, which was diligently remodelled by themselves into their treasured family home. Almost hidden from the street hustle, yet open to the outside, the place lights up as soon as the threshold is crossed. Both literally and metaphorically, the changes and additions to the building reveal their architectural thinking and ways of inhabiting. In the house, layers of temporality, materiality, everyday living and lived experience mingle with design solutions and worldviews affecting them. However, while re-enactments allow for an embodied understanding of how architectural ideas take material form, they also hold the potential to show the situatedness, partiality and contingency of the re-enacted practices, questioning the same values that they unearth. keywords.
Alejandro Campos-Uribe Delft University of Technology, Faculty of Architecture and the Built Environment
Paper Session VECTORS TACK Conference Proceedings

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History meets the Body. Re-enactment as a mode of architectural inquiry.

Alejandro Campos-Uribe Delft University of Technology, Faculty of Architecture and the Built Environment
© TACK
ABSTRACT
Although we normally think about ideas and discourses as disembodied entities, the truth is that tacit architectural concepts, specific ways of understanding history, time, and space, are inscribed into our built environments, and they can only be disentangled with the help of our own bodies, by performing actions within, in, and around buildings. This paper explores the use of re-enactments as a method for architectural historians, using Aldo and Hannie van Eyck’s own house as a case study. The researcher’s body informs the reflections and findings, from materiality to meaning, through the continuous and embedded experience of the space, a seventeenth century building were the Van Eycks lived from 1965, which was diligently remodelled by themselves into their treasured family home. Almost hidden from the street hustle, yet open to the outside, the place lights up as soon as the threshold is crossed. Both literally and metaphorically, the changes and additions to the building reveal their architectural thinking and ways of inhabiting. In the house, layers of temporality, materiality, everyday living and lived experience mingle with design solutions and worldviews affecting them. However, while re-enactments allow for an embodied understanding of how architectural ideas take material form, they also hold the potential to show the situatedness, partiality and contingency of the re-enacted practices, questioning the same values that they unearth. keywords.
Open Access Publication Paper

Knowledge in Architecture: draughtsmanship or craftsmanship?

Image 01: Mason worker drawing Date: 1425 Source: Hausbuch der Mendelschen Zwölfbrüderstiftung, Band 1. Nürnberg 1426–1549. Stadtbibliothek Nürnberg, Amb. 317.2°, © Public Domain
ABSTRACT
What are draughtsmanship and craftsmanship in architecture and what is their relation? This question represents, of course, what could be called two distinct fields of knowledge and communities of practice, architecture and craft, and can very generally describe how their specific knowledge take shape or, in other words, through what kind of practice it is manifested.
Eric Crevels
Open Access Publication Paper

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Knowledge in Architecture: draughtsmanship or craftsmanship?

Eric Crevels
Image 01: Mason worker drawing Date: 1425 Source: Hausbuch der Mendelschen Zwölfbrüderstiftung, Band 1. Nürnberg 1426–1549. Stadtbibliothek Nürnberg, Amb. 317.2°, © Public Domain
Image 02: Sketch of a detail by John Ruskin Source: http://www.themorgan.org/collection/literary-and-historical-manuscripts/191761, © Public Domain
ABSTRACT
What are draughtsmanship and craftsmanship in architecture and what is their relation? This question represents, of course, what could be called two distinct fields of knowledge and communities of practice, architecture and craft, and can very generally describe how their specific knowledge take shape or, in other words, through what kind of practice it is manifested.
Exhibition Model TACK Exhibition Object

Clay Landscape

This 1:1000 landscape model made from clay shows the site of a prominent 12th century church and graveyard located between two housing areas, Tensta and Rinkeby, built during the 1960´s as part of the Million Programme in Stockholm, where we are currently adding a wall of housing combined with an assembly hall, 100 metres long. In our practice we have used this kind of clay model for numerous projects over the years.
Ola Broms Wessel Klas Ruin Spridd
Exhibition Model TACK Exhibition Object

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Clay Landscape

Ola Broms Wessel Klas Ruin Spridd
© TACK
This 1:1000 landscape model made from clay shows the site of a prominent 12th century church and graveyard located between two housing areas, Tensta and Rinkeby, built during the 1960´s as part of the Million Programme in Stockholm, where we are currently adding a wall of housing combined with an assembly hall, 100 metres long. In our practice we have used this kind of clay model for numerous projects over the years.
Book chapter TACK Book

Mouldy Smells and Tacit Noses: knowledges coming into view

© TACK
ABSTRACT
In 2016 two ‘moisture experts’ visited a small public building in Stockholm. Moisture had started to seep in, and mould started to grow in the wooden park building, the spores making the staff working there ill. The experts recorded the levels of microorganisms in the interior air and the composite building materials with scientific equipment and expert noses, identifying certain elements through technological data and odorous qualities. The expert noses registered the same smells as the staff in the buildings, but evaluated, analysed and categorised them according to their expert knowledge field.   Rather than aiming to make tacit knowledges explicit, this paper puts forward a methodological approach to tacit knowledge which unpacks and makes visible what tacit knowledges does, how it operates, and what and who it affects within architecture. By engaging with material ‘events’ (Bennett, 2010) and ‘stutters’ (Graham and Thrift, 2007), like this mould and its smell, through archival documents, scientific reports and changing building materials, the testimony of the material (Material Witness, Schuppli, 2020) makes visible the socio-economic and political value systems and decision-making processes embedded into the fabric of the building. It unpacks how things, otherwise hidden, come into view when systems, infrastructures and buildings break and fall apart, and how the various knowledge productions and value systems tied and embedded into this specific building and its mouldy materials can be unfolded and detangled through a theoretical framework of stutters, ruptures and events. Through this building, its smelly materials, and the different noses inside it, expert and non-expert, the paper unpacks how tacit knowledges operates, who or what can carry it, and what and who it affects.
Anna Livia Vørsel
Book chapter TACK Book

November 1, 2022

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Mouldy Smells and Tacit Noses: knowledges coming into view

Anna Livia Vørsel
© TACK
ABSTRACT
In 2016 two ‘moisture experts’ visited a small public building in Stockholm. Moisture had started to seep in, and mould started to grow in the wooden park building, the spores making the staff working there ill. The experts recorded the levels of microorganisms in the interior air and the composite building materials with scientific equipment and expert noses, identifying certain elements through technological data and odorous qualities. The expert noses registered the same smells as the staff in the buildings, but evaluated, analysed and categorised them according to their expert knowledge field.   Rather than aiming to make tacit knowledges explicit, this paper puts forward a methodological approach to tacit knowledge which unpacks and makes visible what tacit knowledges does, how it operates, and what and who it affects within architecture. By engaging with material ‘events’ (Bennett, 2010) and ‘stutters’ (Graham and Thrift, 2007), like this mould and its smell, through archival documents, scientific reports and changing building materials, the testimony of the material (Material Witness, Schuppli, 2020) makes visible the socio-economic and political value systems and decision-making processes embedded into the fabric of the building. It unpacks how things, otherwise hidden, come into view when systems, infrastructures and buildings break and fall apart, and how the various knowledge productions and value systems tied and embedded into this specific building and its mouldy materials can be unfolded and detangled through a theoretical framework of stutters, ruptures and events. Through this building, its smelly materials, and the different noses inside it, expert and non-expert, the paper unpacks how tacit knowledges operates, who or what can carry it, and what and who it affects.
Lecture / Talk Object Session LINEAGES

Re-enacting Tacit Knowledge in Colonial Mapping Practices

This text is an extended retrospective summary of Eva Sommeregger's talk entitled "Navigating, Performing and Book Making", given at the Tacit Knowledge Symposium at ETH Zurich during the Object Session Lineages on 20 June 2023.
Eva Sommeregger
Lecture / Talk Object Session LINEAGES

June 20, 2023

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Re-enacting Tacit Knowledge in Colonial Mapping Practices

Eva Sommeregger
Tupaia’s map, drawn by the author on Forster’s copy; the connecting lines between the islands and numbering logic were added by the author; the islands marked with an x were added by the Europeans to start the mapping process but Tupaia did not include them in his scheme. 1 Rurutu, 2 Ra‘ivavae; 3 Rarotonga, 4 Niue, 5a Vava‘u, 5b Uiha; 6 Manuae, 7a Maupiha‘a, 7b Motu One, 7c Miti‘aro, 8a Mangaia, 8b ?, 8c Atiu, 9 Rimatara, 10 Rurutu, 11 Tupua‘I, 12 Ra‘ivavae, 13 Rapa Iti; 14 Uea, 15 Rotuma, 16a Savai‘I, 16b Uvea, 17a Upolu, 17b Niuafo‘ou, 18 Niatoputapu and Tafai, 19 Tutuila, 20 Manua, 21 Motu a Manu; 22 Ra‘ivavae, 23 Mangareva, 24 Temoe, 25 Oeno, 26 Pitcairn Island, 27 Henderson, 28 Ducie, 29 Rapa Nui; 30 Nuku Hiva, 31a Hiva‘Oa, 31b Ua Pou; 32 Marquesas Group, 33 Oahu. Photograph of the map displayed in the limited edition leporello version of TUPAIA, KYBERNETES & LARA CROFT. Bodily Perspectives on Postdigital Spaces
© TACK
This text is an extended retrospective summary of Eva Sommeregger's talk entitled "Navigating, Performing and Book Making", given at the Tacit Knowledge Symposium at ETH Zurich during the Object Session Lineages on 20 June 2023.
Exhibition TACK Exhibition Object

A Studio for Orbanism – Luc Deleu & T.O.P. office

The house of Luc Deleu, the founder of T.O.P. office, in the city of Antwerp (Belgium), is not only a design studio and home for the architect but, above all, it is a space of accumulated knowledge: a kaleidoscope of collected references and an archive of drawings and models produced over more than fifty years.
Sofie de Caigny Tine Poot Vlaams Architectuurinstituut (VAi)
Exhibition TACK Exhibition Object

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A Studio for Orbanism – Luc Deleu & T.O.P. office

Sofie de Caigny Tine Poot Vlaams Architectuurinstituut (VAi)
© TACK
The house of Luc Deleu, the founder of T.O.P. office, in the city of Antwerp (Belgium), is not only a design studio and home for the architect but, above all, it is a space of accumulated knowledge: a kaleidoscope of collected references and an archive of drawings and models produced over more than fifty years.
Exhibition Model TACK Exhibition Object

Tannour

This installation emphasises this reciprocal relationship between the crafted object and the architectural space it inhabits. It pushes the boundaries of the tannour from the realm of adjustment to its architectural setting into an architectural creation in its own right. The soap tower no longer merely inhabits, it becomes inhabitable.
Nadi Abusaada Wesam Al Asali
Exhibition Model TACK Exhibition Object

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Tannour

Nadi Abusaada Wesam Al Asali
© TACK
This installation emphasises this reciprocal relationship between the crafted object and the architectural space it inhabits. It pushes the boundaries of the tannour from the realm of adjustment to its architectural setting into an architectural creation in its own right. The soap tower no longer merely inhabits, it becomes inhabitable.
Book chapter TACK Book

Coarse epistemes: Skill, craftsmanship and tacit knowledge in the grit of the world

© TACK
ABSTRACT
In the words of Dutch archaeologist Maikel Kuijpers, craft is “a way of exploring and understanding the material world”. This definition suggests that craftsmanship can be understood as a touchstone for a theory of knowledge in material productions. By exploring the role of skill in the processes of making and its epistemic correspondence, I develop the hypothesis that craftsmanship is as a perceptive-cognitive enactment within the making process, a form of attunement with production. The argument is that the material, productive side of work deploys and operates a particular epistemological regime, based on types of practical engagement deeply related to the possibilities and contingencies of objective, concrete reality. Making means implicating oneself with the material world, embedding the body in the processes of transforming matter and partaking in the flows of forces that form things. Thus, the knowledge in the making – skill – can be understood as the invention or establishment of a new mode of perception through action that is enacted by tools, movements, techniques etc. This practical perception acts as the foundational basis on which craftsmanship is performed, representing its conditions of possibility. Given the perceptual, embodied nature of craftsmanship, its transmission is rendered impossible outside the actual engagement with production. As such, this interpretation refers back to the original distinctions made by Gilbert Ryle of “knowing that” and “knowing how” that influenced Michael Polanyi in his definition of tacit knowledge. The particular epistemic rationality of crafts provides insights for understanding knowledge inside disciplines involved with creative practice, such as architecture. The epistemic coupling with production helps to understand how architects design, but it also reveals a general epistemic schism in the discipline, founded in the inconsistency between abstract designerly knowledge and the craftsmanship of construction.
Eric Crevels
Book chapter TACK Book

November 1, 2022

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Coarse epistemes: Skill, craftsmanship and tacit knowledge in the grit of the world

Eric Crevels
© TACK
ABSTRACT
In the words of Dutch archaeologist Maikel Kuijpers, craft is “a way of exploring and understanding the material world”. This definition suggests that craftsmanship can be understood as a touchstone for a theory of knowledge in material productions. By exploring the role of skill in the processes of making and its epistemic correspondence, I develop the hypothesis that craftsmanship is as a perceptive-cognitive enactment within the making process, a form of attunement with production. The argument is that the material, productive side of work deploys and operates a particular epistemological regime, based on types of practical engagement deeply related to the possibilities and contingencies of objective, concrete reality. Making means implicating oneself with the material world, embedding the body in the processes of transforming matter and partaking in the flows of forces that form things. Thus, the knowledge in the making – skill – can be understood as the invention or establishment of a new mode of perception through action that is enacted by tools, movements, techniques etc. This practical perception acts as the foundational basis on which craftsmanship is performed, representing its conditions of possibility. Given the perceptual, embodied nature of craftsmanship, its transmission is rendered impossible outside the actual engagement with production. As such, this interpretation refers back to the original distinctions made by Gilbert Ryle of “knowing that” and “knowing how” that influenced Michael Polanyi in his definition of tacit knowledge. The particular epistemic rationality of crafts provides insights for understanding knowledge inside disciplines involved with creative practice, such as architecture. The epistemic coupling with production helps to understand how architects design, but it also reveals a general epistemic schism in the discipline, founded in the inconsistency between abstract designerly knowledge and the craftsmanship of construction.