Waldo Galle

Waldo Galle
Vrije Universiteit Brussel | VUB · Architectural Engineering (AELA)

Prof. dr. ir. arch.

About

49
Publications
20,388
Reads
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219
Citations
Citations since 2016
37 Research Items
210 Citations
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Introduction
Waldo Galle is assistent professor and the academic policy coordinator on sustainability transitions at Vrije Universiteit Brussel (VUB) and associate researcher for the Flemish Institute for Technological Research (VITO). As a member of the research groups VUB Architectural Engineering, and Business Technology and Operations, he studies the missing links and pieces of the circular economy puzzle.

Publications

Publications (49)
Article
Full-text available
End-of-life insulating glass units (IGUs) continue to follow a linear, wasteful path from renovation and demolition sites into landfills or low-value recycling. To get one step closer to the question of how to close the glass loop, this exploratory research outlines a cross-practitioners review of glass circularity in conventional Flemish and Bruss...
Method
Full-text available
This publication covers Value Network Mapping and why you should use it. With a step-by-step guide, hands-on templates, and tips and tricks for facilitators, Value Network Mapping can be adopted as a sense-making and co-creating instrument for your challenge.
Article
Full-text available
On the long term, buildings could initiate less material flows and have improved environmental performance if they are designed for future disassembly and reuse. However, material flows in the building life cycle are difficult to map, especially those initiated by material replacements and at end-of-life. The calculation formula for the number of r...
Article
Full-text available
Like any persistent challenge, the transition from a linear to a circular construction economy requires systemic changes. To divert from current practices that maintain the take-make-waste logic, we need new ways of doing and thinking within the value network of construction. In search for those enduring changes, a compass group advises the Flemish...
Article
Full-text available
From 2016 until 2019, the Circular Retrofit Lab (CRL) was realised within the H2020-funded project Building As Material Banks (BAMB). The CRL was an experimental pilot project concerning the refurbishment of eight student housing modules in Brussels, Belgium. The lab aims to demonstrate how to implement circular building design in a retrofitting pr...
Article
Full-text available
In addition to the environmental burden of its construction and demolition activities, the Flemish housing market faces a structural affordability challenge. As one possible answer, this research explores the potential of so-called expandable houses, being built increasingly often. Through specific design choices that enable the disassembly and fut...
Chapter
Full-text available
In Flanders, circularity is becoming a well-discussed domain in the design and construction sector, in part due to the efforts of the Flemish Government. The ultimate goal of the transition toward a circular economy (CE) is becoming resource independent and reducing the sector’s environmental impact. However, architectural designers still struggle...
Chapter
In 2016, the Flemish Government set the transition to a circular economy (CE) as one of its priorities. Adopting the paradigm of circularity in, amongst others, the building sector has the potential to create more sustainable buildings, where the use of new resources and the production of waste is minimised by closing material flows. However, circu...
Chapter
Buildings’ obsolescence and inefficient use can be prevented by designing general and adaptable plan layouts. General plan layouts accommodate different needs without being altered, while adaptable plan layouts can be easily altered thanks to, for example, demountable walls. A design-support method to quantify the generality and adaptability of pla...
Chapter
Although home ownership is continuously supported by the regional authorities in Flanders, the housing market is not accessible to all. No less than 680,000 inhabitants of Flanders live in poverty and 153,910 are on a waiting list for social housing. In the transition toward the much-discussed circular economy lays, however, an opportunity to make...
Conference Paper
Full-text available
Although home ownership is continuously supported by the regional authorities in Flanders, the housing market is not accessible to all. No less than 680,000 inhabitants of Flanders live in poverty and 153,910 are on a waiting list for social housing. In the transition towards the much-discussed circular economy lays however an opportunity to make q...
Conference Paper
The transition to a circular construction economy, which has been receiving more and more attention in Flanders and Brussels like in many other regions, requires new collaborations in transition experiments. Since such experiments are demanding, facilitating more effectively the formation of partnerships and support collaborations in initiatives su...
Article
Full-text available
To support the construction sector in its transition to a circular economy, many design instruments and decision support tools have been and are still being developed. This development is uncoordinated and raises confusion among building designers and advising engineers, slowing down the tools’ adoption in practice. Moreover, it is unclear if the a...
Book
Full-text available
To create awareness and empower the construction sector in its transition towards an economy of closed material loops, this publication proposes a holistic framework. It is the result of a series of observations, interviews and co-creation sessions with different construction actors, including architects and contractors, researchers and policy make...
Book
Full-text available
This publication facilitates the transition towards a circular construction sector through qualitative design choices; a sustainable practice wherein materials cycle in closed loops, using the resources we have access to as efficiently and effectively as possible. To do so, this booklet proposes a set of design approaches, qualities and concepts. I...
Article
Full-text available
The transition from a linear to a circular economy is essential to reduce the environmental burden of our society. A key issue is to prevent a shift of the environmental burdens and take the consequences of a decision into account, for example based on a consequential life cycle assessment (LCA). However, limited practical guidance is available on...
Article
Full-text available
A possible design strategy to improve the sustainability of building products is facilitating their future reuse. This strategy inspires some manufacturers to design innovative products, such as reusable façade products. Although these products might have a higher environmental impact for production, their reusability could lead to an environmental...
Conference Paper
Full-text available
Since 2014, Flanders’ Agency for Public Waste, Materials and Soil OVAM, governs the policy program 'Material-aware construction through circular supply chains’ (in Dutch: Materiaalbewust bouwen in kringlopen). Its aim is establishing, in the Belgian region of Flanders, an economy of closed material loops through socio-technical innovation in the bu...
Conference Paper
Full-text available
In Belgium, about 70% of all households own the house they call their home. Private ownership is strongly encouraged by governments, although the price of houses and apartments has more than doubled since 2000. As a result, the affordability of housing becomes a challenge for increasingly more families. 13% of those who enter a loan, pay more than...
Poster
Full-text available
Understanding the effect of a well-thought form and dimension concept in the construction sector as a catalyst for circular economy contributes effectively to a circular economy and thus reduces the sector's environmental footprint. Architects need guidance on how to implement this concept, considering the architectural and environmental consequenc...
Article
In construction, the focus of research and policy on sustainability broadened from reducing the energy consumption of a building in use, to a comprehensive sustainability strategy considering the building's entire life cycle. However, the implementation of life cycle thinking (and its operational counterpart the circular economy) in combination wit...
Conference Paper
Full-text available
Over the past decades, a growing awareness of the built environment's ecological impact has increased the interest in the long-term value of buildings in Belgium, like in many other countries. Central to the idea of long-term value is the search for buildings that stay relevant after the requirements that shaped them have changed. Consequently, lit...
Chapter
Contemporary Belgian architectural practice demonstrates it has the potential to implement Design for Change or Open Building principles. Nevertheless, it seems to lack the coherence to respond effectively to the challenge of consistently adding long-term value to its interventions. This is where support from research and policy can play a guiding...
Conference Paper
Full-text available
Due to the static nature of conventional buildings, demolition is often unavoidable when requirements have changed. At that moment, all invested resources are wasted. In contrast, introducing adaptability in the design phase of buildings and their elements, e.g. façades, facilitates future transformations, extends buildings’ service life, and has t...
Conference Paper
Full-text available
We live in a quickly changing and evolving world and society. This high rate of change induces inevitably a high rate of material consumption that is due to the change of trends, norms but also due to the development of new technical solutions. Although the construction industry considers buildings as long-life artefacts which are, therefore, desig...
Conference Paper
Full-text available
A way to apply circular economy to the built environment is Design for Disassembly, an approach to design adaptable building components whose materials can be re-used. Targeting a high material efficiency, this approach often requires an extra material input, due for instance to more complex connection details or oversized components. Hence archite...
Conference Paper
Full-text available
Today, in Flanders and Brussels, a transition towards a circular construction economy seems to unfold. After the development of research projects and policy frameworks, various frontrunners demonstrate how that transition could take shape. Larger manufacturers increasingly emphasize the circular nature of their recycled products and contractors imp...
Article
Full-text available
Purpose To evaluate the long-term advantage of reusing building elements, including reduced material consumption and waste production, life cycle assessments are purposeful. To translate these assessments in relevant design advices, it is necessary to model accurately the service life of the considered elements and acknowledge the related uncertain...
Article
Full-text available
Although life cycle assessment offers insight into the long-term value of our building stock, it has become impossible to model with certainty the service life of a building. What if new lifestyles make reality diverge from the expected service life? What if the building is decommissioned very early or forced to accommodate new functions? Would the...
Conference Paper
Full-text available
Design choices, extending the service life of buildings and fostering closed material loops, can be a key instrument for the transition towards a circular economy. After all, the best waste, is waste that will never exist. For this reason, the Flanders' Public Waste Agency OVAM published in 2013 a set of 23 design principles for increasing the gene...
Presentation
Full-text available
Presented at the BBRI innovation paper seminar (Greenbizz, Brussels). Vrije Universiteit Brussel, Brussels. 44p.
Thesis
Full-text available
Transformable building is an innovative design and construction strategy. It aims for an adaptable building stock and fosters the future reuse of construction materials. As a result, long-term environmental and financial savings could be realised. Nevertheless, a feared increase of its initial cost impedes this strategy’s widespread implementation....
Presentation
Full-text available
Presented at the international symposium on reversible building design BAMB (Zuyd Hogeschool, Maastricht). Vrije Universiteit Brussel, Brussels. 18p.
Article
Full-text available
Understanding and exploiting the future value of existing buildings is an opportunity for property owners, developers and designers to be sustainable and offer advantages rather than burdens to successiveusers. However, although several assessment methods have been studied to quantifythe future value of buildings, more cases are needed to illustrat...
Presentation
Full-text available
Presented at the open symposium Beyond Bim (Ghent University, Ghent). Vrije Universiteit Brussel, Brussels. 12p.
Conference Paper
Full-text available
With the current focus of construction and design on sustainability, Open Building is challenged to reinforce its sustainable character. In this light, Transformable Building is an interesting focus. As it adopts from Open Building its adaptability, it enables the reuse of building components and their resource efficient management. In search for...
Article
Full-text available
Because the student residences of the Vrije Universiteit Brussel built in 1973 are not adapted to current comfort standards, the university decided to construct new accommodation facilities at the border of the campus. However, besides demolition, there was no strategy on how to deal with the existing ones. In the search for a more sustainable stra...
Technical Report
Full-text available
Rekening houdend met de toenemende vraag naar materialen en de eindigheid van heel wat primaire grondstoffen zal de financiële en ecologische druk op de bouwsector steeds verder toenemen. Daarom zet het Vlaamse beleidsprogramma 2014-2020 ‘Materiaalbewust bouwen in kringlopen’ resoluut in op het levenscyclusbeheer van bouwmaterialen en gebouwelement...
Technical Report
Full-text available
In view of the increasing demand for primary raw materials and their finite nature, the financial and ecological pressures on the construction industry will continue to rise. This is why the Flemish 2014-2020 policy programme “Materials aware Cyclical Construction” resolutely targets the life cycle management of construction materials and building...
Conference Paper
Full-text available
The high environmental impact of construction is currently challenging conventional architectural practice. In reaction, the strategy 'design for change' has been put forward. Through the adoption of 'interchangeable' building components and 'reversible' connections, this alternative design strategy fosters both reuse and recycling. Consequently, i...
Conference Paper
Full-text available
Considering the increasing dynamism of our society, contemporary building practice is characterised by a widening gap between the functional and technical lifespan of most assets. Consequently, designers are challenged to apply strategies that anticipate change and avoid abandonment or early demolition. Life cycle analysis has proven that transfor...
Conference Paper
Full-text available
Considering the increasing dynamism of our society, designers are challenged to apply design strategies that anticipate change and obsolescence. One of those strategies is 'transformability'. Trough compatibility and dismountability it results in dynamic buildings. However, the higher initial cost generally attributed to transformable building form...
Conference Paper
Full-text available
Buildings that are constructed and refurbished in a transformable way can be altered easily and meet the demands of changing users or standards. Moreover, since transformability enables the reuse and recycling of buildings and their components, life cycle analysis has proven that it is a more sustainable strategy to build than those that are curren...

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Projects

Projects (2)
Project
This project collects research outputs on the topic of Design for Change and Circular Economy in Construction resulting from multi-institution (international) collaborations that included Waldo Galle and Pieter Herthogs.
Project
The BBSM project — Buildings in Brussels: A Source of Future Materials — is funded by the FEDER programme and unites four different partners around a common goal: to demonstrate that end-of-life materials are valuable resources which, when reintroduced into a cyclical process for producing "new" materials, are a boon for sustainable development in the Brussels-Capital Region (RBC).