Importance of the Living Environment
We often focus on prestigious one-off buildings, but it is the everyday architecture such as housing that is crucial in designing for a more sustainable world, and tackling the climate emergency. This is because people spend a lot of their time in their homes, and significant energy is required to use the spaces. Living also does not take part in the dwelling alone, but takes place in the housing block and in the neighbourhood, i.e. in the wider living environment. And as such we must consider these interconnected scales to ’lock in’ sustainable and healthy lifestyles with reduced impacts on the planet. This is why designing, and getting the ‘everyday living environment’ right, matters. And this must be inclusive and accessible to all.
How to use the 10 themes
There are 10 climate emergency design themes around which the ARCH4CHANGE content is structured. These 10 themes reflect the different aspects to be considered in holistic sustainable architecture approaches. In practice, all of these themes must be met to high standards to create truly sustainable architecture in reality. However, as a student you do not need to know all the 10 themes in-depth from year 1. Instead, future and global responsibility, environment and people and community themes should always be included in each design project in each year of study. Each year, each student then works progressively towards including additional themes until all ten are included in your design project by the end of the studies
5-step Design Process
The 5 step iterative process and 10 climate emergency design themes will help you in the design-decision making process and in justification of your approach. To centre sustainability at the start of your project and refine it throughout you need to undertake integrated design and iterative design processes. Exploring your project’s context helps to make design decisions based on knowledge (Step 1) and helps to define project values and your climate emergency design approach (Step 2). This then sets a good foundation for imagining and testing (Steps 3, 4), and refining your architecture approach based on feedback loops (Step 5). Make sure you communicate your values and climate emergency design approach clearly and explicitly – this helps in the testing and feedback phase
Adaptable Infrastructure
Adaptability ensures that infrastructures keep meeting an individual’s, community’s and society’s changing needs over time, but also includes adapting to a changing climate. Adaptability ensures longevity: it reduces risk of premature building obsolesce and demolition when they no longer meet our needs (because they can be adapted) – this is part of circular thinking and climate change mitigation and adaptation approaches. Adaptability reduces transient communities and supports stability, diversity and community cohesion, this is also part of creating inclusive and equitable infrastructures and long-term resilience. As such your project should put adaptability at its core, at micro, meso and macro-scale. A key aspect of this is the creation of different scenarios and personas over time (e.g., scenarios of possible functions, changing climate, modes of use, etc.) and reflect this in at least one alternative layout (i.e. design) scenario for your project. Ensure that your project also enables future adaptability at different scales.
Inclusive Infrastructure
Designing inclusive infrastructures is an essential part of climate emergency design and is an iterative process that you need to see through all stages of your project design (i.e. explore, define, imagine, test and feedback). Inclusive infrastructures means that inhabitants are part of the design and decision-making process through democratic processes. It also means that spaces can be used and accessed by as many people as possible regardless of age, gender and ability, i.e. they are accommodating and welcoming all. A solution can’t be resilient by itself. It is only resilient when it is adopted and taken ownership of by the community and this is best done through inclusive bottom-up approaches. There are many ways you can include democratic processes and inclusive design in your project, even as a student. For example, you can create a ‘Democratic Design plan’; this helps you to Identify your users (human and non-human), acknowledge and involve your users and to create design approaches that care for your users (including nature & non-humans).
Social Infrastructure
Social infrastructure encourages the connection and coming together of people and this includes formal and informal public & private spaces and places that provide opportunities for people to interact with each other in their everyday lives. Social infrastructures supports the building of social capital in the community; this in turn reduces conflict and increases trust, care, connection and feelings of safety. This helps to build individual and community resilience and health and well-being. In your project, always consider what kind of spaces can bring people together from different walks of life and how you can create links with the existing communities. Be careful to impact the existing social spheres positively and not negatively i.e. restorative actions. Ensure that the social infrastructure you suggest answers to the needs of people and are adaptable to their changing needs in the future, otherwise they will not meet needs and remain unused – so undertake inclusive and democratic processes. Always prioritise inclusion of social infrastructure in each and every project, including retrofitting of social infrastructure as the societal, community and individual benefits are significant.
Green Infrastructure
Green infrastructure is the network of natural green spaces and landscapes within and around urban environments, such as food-growing areas, wetlands, forests, parks and wildlife gardens. Green infrastructure supports biodiversity, enhances ecosystem health, absorbs CO2 and manages adaptations to a changing climate (e.g. flood prevention and overheating). Co-benefits are supporting social activity and human well-being. Your project must tread lightly: after all, placing a new structure is hugely disruptive, as the developed land will have lost its existing ecological value forever. Your choice of site is therefore vital and value and protect existing natural habitats and leave the place better than it was before (i.e. retorative action). To do that, create a green infrastructure plan for your project that identifies and creates a map of the potential impact of your design on existing green infrastructure and on stakeholders and propose remedial measures to ensure a restorative approach. Distribute green spaces of different scales and diversity throughout the city within short walking distances and connect wildlife habitats through parks with green corridors and pedestrian spaces. Prioritise views of nature and trees, integrating generous physical access to different kinds and scales of nature for human and non-humans.
Blue Infrastructure
Description Blue infrastructures are natural and human-made water systems at different scales. Integrating blue infrastructure at different scales in your project has multiple benefits, for example for biodiversity, the urban micro climate, reduced water consumption, and they can act as social infrastructure and for climate adaptation. Working with water rather than against it can lead to restorative actions (e.g. by giving water space; recharging the ground water through permeable paving; enabling the thriving of other species).
In your project:
• Map natural and human-made water bodies and understand how your site is affected by water as a threat or an opportunity (e.g., rivers, sea) now and in the future.
• Use permeable landscape surfaces, include space for water retention systems that are also dual-purpose, i.e., spaces for leisure to act as social infrastructure and space for enhancing biodiversity (restorative actions) and that can store water in extreme weather events as part of climate change adaptation.
• To mitigate climate change at micro-scale, always consider efficient appliances as a priority. Then consider water recycling strategies that are low in energy use and embodied energy, e.g. simple rain water harvesting techniques.
Finally, sustainable urban drainage systems (SUDs) need to be combined at all scales: they all act together to mitigate and adapt to climate change and tackle the biodiversity crisis.
Life Cycle Assesment
Lifecycle Assessment (LCA) is a methodology used to evaluate the environmental impacts of buildings, products, and materials at all stages of their lifecycle. It looks into resource use, pollution, waste, toxicity to air, water, land, humans and ecology, energy and carbon used for extraction, transportation, and manufacturing, and maintenance, demolition, recycling, and waste disposal. Lifecycle Costing (LCC) is a method to assess the financial impacts of buildings, products and materials at all stages of their lifecycle, including the cost of extraction, transportation, production and construction, maintenance, and replacement. In Denmark, from 2023, LCA will be obligatory for all new buildings with more than 1000 square meters. LCC and Whole Life Costing (WCC) are important to consider the long-term costs and benefits of design decisions, and to take into account the resale value of dismantled building elements for reuse in the future. LCA and LCC are useful to understand and evaluate the impacts of material choices, and make more informed decisions.
Natural Materials
Natural materials are found in nature and can be used for structure elements, roofs, insulation, external and internal cladding or furniture. Renewable materials are those that can be easily replenished, such as timber, fax, cork, hemp, cob, stroke, grasses, salt, bamboo and seaweed. Non renewable materials should be natural and abundant, such as stone, earth, clay, sand or organic slightly processed materials. Biogenic materials sequester carbon and absorb more CO2 than they produce in extraction and manufacturing. Recently, there has been an approach to natural materials that focuses on innovation in cultivating, breeding, raising farming or growing future resources, such as wood foam, bio polymers, and fungal mycelium. These materials are cost effective, biodegradable, and have high insulation properties, flame resistance, and a favorable indoor climate
Self-sustaining Design Approaches
Self-sustaining design approaches at their core, these approaches embrace a holistic philosophy that seeks to harmonize human habitats with the natural world while reducing resource consumption and minimizing environmental impact.
Central to this concept is the aim to achieve self-sufficiency, wherein buildings generate their energy and resources, striving for net-zero or even positive energy balance. This involves integrating renewable energy sources such as solar panels, wind turbines, and geothermal systems, coupled with innovative energy storage solutions.
Passive design strategies play a vital role, leveraging the local climate and environment to optimize heating, cooling, and lighting without heavy reliance on mechanical systems. Water conservation is also paramount, employing techniques like rainwater harvesting, greywater recycling, and efficient irrigation.
Materials selection takes on a sustainable ethos, favouring eco-friendly and locally sourced options to reduce embodied energy and minimize transportation impact.
Microclimate
The microclimate refers to the local climatic condition that exists within a small specific area such as a garden, park or urban street. It is influenced by factors such as the surrounding terrain, vegetation cover, topography and buildings. The urban heat island effect is a phenomenon where urban or developed areas are significantly warmer than surrounding rural areas, typically by several degrees Celsius. This effect is caused by a combination of factors related to human activities, including the construction of buildings and roads, the use of dark surfaces, loss of vegetation and the generation of heat by vehicles, machinery and other sources. Trees and other vegetation provide shade and cool the air through the process of transpiration, so when vegetation is removed or reduced, there is less shade and cooling, leading to higher temperatures. The urban heat island effect can have several negative impacts on human health, including increased risk of heart related illnesses, increased energy consumption and increased air pollution and greenhouse gas emission.
Atmospheric Conditions
This talk is about passive resilience and atmospheric conditions. It discusses the differences between the atmosphere and climate, and the four factors that make up the atmospheric condition: temperature, humidity, wind, solar exposure, and precipitation. Temperature has a direct impact on energy and efficiency, and passive design techniques such as building orientation, insulation, and shading can help maintain comfortable indoor temperatures. In hot climates, passive cooling strategies such as shading and ventilation can reduce the need for active cooling systems. In cold climates, passive solar heating and thermal mass materials can help reduce the need for energy intensive heating systems. It is important to consider the temperature range for a location when selecting building materials to ensure they are durable and appropriate for the local climate. Energy efficiency can be improved by considering the temperature of a building and using passive cooling techniques.
Designing for Climatic Zones
Designing for climates is the process of designing spaces that are well adapted to the local climate and weather conditions, with the goal of minimizing the building's energy consumption, maximizing indoor comfort, and reducing the negative impacts on the environment. Climate plays an important role in shaping human settlement, as it affects a ways people interact with the environment and the types of buildings and infrastructure that are required to support their needs. Contextual design and place-based design includes the spirit of place, also referred to as a genius loci, which focuses on the unique identity of place and its local natural systems, landscaping and environment. An example of this is the Danish vernacular wing houses and half timber houses, which were designed to withstand the harsh weather conditions in Denmark and were orientated with S facades or SW facades to maximize solar gain and minimize exposure to prevailing winds. Climate is affected by latitude, distribution of land and sea wind systems as well as the altitude of the location, and microclimates refer to the specific conditions and the immediate vicinity of a site such as wind patterns, temperature fluctuations and exposure to sunlight.
Climatic Zones
This talk is about the relationship between climate and architecture, and how understanding the climatic zones can help inform the design of a building. The northern and southern hemispheres, as well as the Equatorial zone, have unique environmental conditions that influence the design of spaces, the architectural approach, and the materials used. The global wind directions are largely influenced by the Earth's rotation and the unequal heating of the Earth's surface by the sun, and the distribution of land and water masses across the planet. Examples of wind directions include the trade winds, westerly winds, and polar easterlies. It is important to consider these climatic factors when designing a building, as the solar radiation and global winds can have a significant impact on the amount and intensity of solar radiation that a building receives.
Circular Design Approaches
Circular design approaches embrace the principles of circular economy, aiming to minimize waste and optimize resource usage throughout a building's lifecycle. This innovative approach challenges the traditional linear "take-make-dispose" model by promoting a closed-loop system. Architectural circularity involves designing structures that prioritize durability, adaptability, and ease of disassembly. Materials are chosen based on their potential for reuse, recycling, or upcycling, reducing the depletion of virgin resources and curbing environmental impact. They also emphasize modular construction, enabling components to be easily replaced or repurposed as needs evolve. This approach extends the lifespan of buildings, enhances their resilience, and reduces demolition waste.
Regenerative Design Approaches
Distinct from sustainable design, regenerative architecture reverses ecological damage and seeks a net-positive environmental impact. Transitioning from sustainability to regeneration, architects question how to not only use limited resources but also restore them. This approach fosters resilience to natural challenges, providing a progressive solution to the climate and biodiversity crisis.
The regenerative design process employs systemic thinking and involves integrating the natural world as both the inspiration and generator for architectural designs. It encompasses two essential aspects: minimizing environmental impacts through conscious material choices, reduced energy consumption, and intelligent design; and treating the environment as an equal partner in the architectural process. By understanding natural and living systems deeply, regenerative architecture embraces millions of years of evolution and engineering, creating structures that harmoniously coexist with their surroundings.
By embracing regenerative architecture, the construction industry can shift from minimizing harm to actively benefiting the environment, aligning design with nature's principles and promoting a more sustainable, prosperous future.
Resilient Design Approaches
Resilient design approaches entail the strategic integration of principles and strategies that enhance a building's capacity to withstand and recover from various stressors, such as natural disasters, climate change, and socio-economic shifts. This approach emphasizes not only the durability of structures, but also their adaptability and ability to bounce back in the face of adversity. Resilience operates across scales and timeframes, encompassing buildings, communities, and regions.
At the building scale, strategies encompass handling climate impacts, situating critical systems smartly, using future climatic models, passive survivability, robust materials, beauty, energy optimization, water conservation, waste solutions, local resourcing, and hazard-resistant specifications.
Community resilience involves social structures, local food systems, transport alternatives, stormwater management, communication hubs, education, and infrastructure planning.
Regionally, policies must value ecosystem services, protect aquifers, develop transportation and renewable energy networks, encourage diverse economies, and support regional manufacturing.
While total resilience might be unattainable, incremental steps can enhance resilience progressively, positioning systems and societies for better preparedness and responsiveness.