Sustainability Sustainability is to become the guiding principle of social action and economic activity. At the same time, its ways and means are far from clear. As a holistic praxis, sustainability must combine technical and material as well as social, economic, ecological and also ethical strategies, which have multiple complex interactions and all too often also conflicting goals and priorities. In no other field can these be better observed, addressed and influenced than in architecture and building. "Building Better – Less – Different" Each volume of "Building Better – Less – Different" details two fundamental areas of sustainability and explores their specific dynamics and interactions. After introductory overviews, innovative methods and current developments are described and analysed in in-depth essays, international case studies and pointed commentaries. The sustainability criteria of efficiency ("better"), sufficiency ("less") and consistency ("different") form the framework for each book. What the press say about the first volume "Circular Construction and Circular Economy" "The articles, case studies and commentaries in this book make a major contribution to advancing the current discourse on implementing circular-based economic models in the building sector." Hessian Chamber of Architects, book reviews "To think of tomorrow when building today is the core message that Dirk E. Hebel and Felix Heisel want to convey to their readers. … And they also show us how: with the help of relevant examples, grouped under the headings ‘better’, ‘less’ and ‘different’, they demonstrate concrete applications and argue that circular construction can also benefit the construction industry…" architektur aktuell Clean energy transition It has long been common knowledge that energy and sustainability are closely interlinked. And yet we are witnessing a profound shift in the sector. While the earlier focus was on improving energy efficiency and increasing the proportion of renewable energy in buildings, current energy conservation policies are supporting a broader, more holistic view. This encompasses integral approaches in which building design and construction measures form part of the energy concept from the outset, as well as accounting for grey energy in building materials and a holistic evaluation of buildings over their entire life cycle. For the energy-intensive and emission-producing building sector, climate change presents an even greater challenge than conserving resources. How can we contribute to a shift in heating strategies and employ new technologies to achieve climate-neutral heating? How can we respond to rising temperatures and the risk of increased energy consumption for cooling? Can low-tech concepts help to reduce the environmental impact of buildings over their life cycle? Shouldn’t we take greater account of the users of buildings, and do we need completely different energy supply strategies? Digital Transformation At a time of natural ubiquity of digital tools, widely adopted to streamline project delivery in architecture, the foundations have been laid for a profound transformation of the construction industry to address the climate crisis. Digital architectural design and construction methods can be used as enabling technologies for a fundamental change towards a circular construction approach with significantly reduced ecological and climate impact. This approach comprises a digital reinterpretation of natural building materials through digital construction technologies. Digital deconstruction and reuse strategies can transform the existing building stock into resources for the future. Mass customization of tailor-made building components minimizes resource consumption. Architects, in their emerging role as interdisciplinary interface and digital master builders, reunite design and making through digital craft. Finally, the book provides a glimpse into the potential future of construction, which might be characterized by fundamentally different concepts of design and materialization of our built environment, challenging current paradigms within our discipline.

Sustainability is to become the guiding principle of social action and economic activity. At the same time, its ways and means are far from clear. As a holistic praxis, sustainability must combine technical and material as well as social, economic, ecological and also ethical strategies, which have multiple complex interactions and all too often also conflicting goals and priorities. In no other field can these be better observed, addressed and influenced than in architecture and building. Each volume of "Building Better - Less - Different" details two fundamental areas of sustainability and explores their specific dynamics and interactions. After introductory overviews, innovative methods and current developments are described and analysed in in-depth essays, international case studies and pointed commentaries. The sustainability criteria of efficiency ("better"), sufficiency ("less") and consistency ("different") form the framework for each book. The first volume presents concepts, methods and examples of circularity in construction and the economy. Urban mining and circular construction are two approaches to the challenges that architecture and urban design are facing, using techniques such as mono-material construction and design for disassembly, and tools such as materials passports and databases. The circular economy is not solely about recycling but encompasses a wide range of strategies from local community projects to new ownership and service models and steering mechanisms such as carbon fees and dividends.

Nachhaltigkeit ist heute zur alles übergreifenden Leitlinie gesellschaftlichen Handelns geworden, doch zugleich sind ihre Mittel und Wege alles andere als eindeutig klar. Aus ihrem ganzheitlichen Verständnis heraus muss Nachhaltigkeit technisch-materielle, soziale, ökonomische, ökologische als auch ethische Strategien vereinen, zwischen denen es komplexe Wechselwirkungen und oft genug auch Ziel- und Prioritätskonflikte gibt. In keinem anderen Bereich lassen sich diese Zusammenhänge besser verstehen, darstellen und beeinflussen als im Bauwesen. „Besser – Weniger – Anders Bauen" greift in jedem Band zwei Bereiche von Nachhaltigkeit auf, deren Wechselwirkungen besonders wichtig und zugleich besonders gut zu erfassen sind. Nach einführenden Überblicksdarstellungen werden für jeden Bereich etablierte Methoden, aktuelle Entwicklungen und akute Konfliktfelder beschrieben, analysiert und an internationalen Fallbeispielen im Detail dargestellt. Dies geschieht anhand der Nachhaltigkeitskriterien von Effizienz („besser"), Suffizienz („weniger") und Konsistenz („anders"). Stimmen zum ersten Band „Kreislaufgerechtes Bauen und Kreislaufwirtschaft" „Die Beiträge, Fallstudien und Kommentare helfen, die Diskussion zur Umsetzung kreislaufbasierter Wirtschaftsmodelle im Baubereich voranzutreiben." Architektenkammer Hessen, Fachliteratur „Beim Bauen von Neuem bereits das Morgen mitdenken ist einer der zentralen Denkanstöße, die Dirk E. Hebel und Felix Heisel in ihrem Buch den LeserInnen mit auf den Weg geben. … Wie das gehen kann, wird unter den Vorzeichen ‚Besser‘, ‚Weniger‘ und ‚Anders‘ anschaulich anhand konkreter Beispiele vorgeführt, nicht zuletzt auch der Aspekt, wie kreislaufgerechtes Bauen als Mehrwert für die Bauwirtschaft funktionieren könnte …" architektur aktuell Energiewende Als selbstverständlich erscheint die schon lange bestehende Verbindung zwischen Nachhaltigkeit und Energie. Und doch vollzieht sich darin gerade ein tiefgreifender Wandel. Ging es bisher in erster Linie um Energieeffizienz und den Anteil erneuerbarer Energieträger am Gebäude, so unterstützen nun politische Vorgaben zum Energieverbrauch eine ganzheitlichere Betrachtung. Diese beginnt mit integralen Ansätzen, bei denen der Gebäudeentwurf und konstruktive Maßnahmen bereits Teil des Energiekonzepts werden, und führt über die Erfassung der grauen Energie in Baumaterialien bis zur ganzheitlichen Bewertung von Gebäuden über deren gesamten Lebenszyklus. Noch stärker als die Ressourcenfrage stellt heute der Klimawandel die Hauptherausforderung für den energiehungrigen und emissionsintensiven Sektor Gebäude dar. Wie können wir die Wärmewende besser gestalten und mit verbesserten technologischen Ansätzen klimaneutral heizen? Wie begegnen wir den steigenden Temperaturen und der Gefahr eines damit zunehmenden Energieverbrauchs zum Kühlen? Ist auch mit einfacheren Gesamtkonzepten eine geringere Umweltbelastung von Gebäuden über den gesamten Lebenszyklus zu erreichen? Müssen nicht die Nutzer von Gebäuden stärker berücksichtigt werden, und braucht es ganz andere Energieversorgungsstrategien? Digitale Transformation Digitale Werkzeuge sind heute allgegenwärtig und werden weithin für eine effizientere Projektentwicklung in der Architektur eingesetzt. Damit ist der Grundstein für eine tiefgreifende Transformation der Baubranche zur Bewältigung der Klimakrise gelegt. Digitale architektonische Entwurfs- und Konstruktionsmethoden lassen sich als Basistechnologien für einen grundlegenden Wandel hin zu einem kreislauforientierten Bauwesen mit deutlich geringeren Auswirkungen auf Umwelt und Klima nutzen. Dazu gehört eine digitale Neuinterpretation natürlicher Baustoffe mittels digitaler Bautechnologien. Mithilfe digitaler Rückbau- und Wiederverwendungsstrategien lässt sich der Gebäudebestand in Ressourcen für die Zukunft verwandeln. Die Massenindividualisierung maßgeschneiderter Bauteile minimiert den Ressourcenverbrauch. In ihrer neuen Rolle als interdisziplinäre Vermittler und digitale Baumeister vereinen Architekten Entwurf und Fertigung durch digitale Expertise. Darüber hinaus gibt das Buch Einblicke in die mögliche Zukunft des Bauens, in der grundlegend andere Konzepte von Gestaltung und Materialisierung unserer gebauten Umwelt die jetzt herrschenden Paradigmen unserer Fachdisziplin in Frage stellen.

"Reduce, Reuse, Recycle, and Recover" is the sustainable guideline that has replaced the "Take, Make, Waste" attitude of the industrial age. Based on their background at the ETH Zurich and the Future Cities Laboratory in Singapore, the authors provide both a conceptual and practical look into materials and products which use waste as a renewable resource. This book introduces an inventory of current projects and building elements, ranging from marketed products, among them facade panels made of straw and self-healing concrete, to advanced research and development like newspaper, wood or jeans denim used as isolating fibres. Going beyond the mere recycling aspect of reused materials, it looks into innovative concepts of how materials usually regarded as waste can be processed into new construction elements. The products are organized along the manufacturing processes: densified, reconfigured, transformed, designed and cultivated materials. A product directory presents all materials and projects in this book according to their functional uses in construction: load-bearing, self-supporting, insulating, waterproofing and finishing products.

Sustainability is to become the guiding principle of social action and economic activity. At the same time, its ways and means are far from clear. As a holistic praxis, sustainability must combine technical and material as well as social, economic, ecological and also ethical strategies, which have multiple complex interactions and all too often also conflicting goals and priorities. In no other field can these be better observed, addressed and influenced than in architecture and building. Each volume of "Building Better - Less - Different" details two fundamental areas of sustainability and explores their specific dynamics and interactions. After introductory overviews, innovative methods and current developments are described and analysed in in-depth essays, international case studies and pointed commentaries. The sustainability criteria of efficiency ("better"), sufficiency ("less") and consistency ("different") form the framework for each book. The first volume presents concepts, methods and examples of circularity in construction and the economy. Urban mining and circular construction are two approaches to the challenges that architecture and urban design are facing, using techniques such as mono-material construction and design for disassembly, and tools such as materials passports and databases. The circular economy is not solely about recycling but encompasses a wide range of strategies from local community projects to new ownership and service models and steering mechanisms such as carbon fees and dividends.

NEXT GENERATION BUILDING MATERIALS The 21st century faces a radical change in how we produce construction materials - a shift towards cultivating, breeding, raising, farming, or growing future resources. This book presents innovative industrialized production methods for cultivated building materials, like cement grown by bacteria, bricks made of mushroom mycelium, or bamboo fibers as reinforcement for concrete. Spanning from scientific research to product development and architectural application, this book builds a bridge between the academic and the professional world of architecture. The book describes the challenges, strategies, and goals in the first part, followed by a second part on bamboo, A cultivated building material and a number of examples in the third part which form the bridge from cultivated materials to building products.