Between 1950 and 2011, the world's urban population increased fivefold. In 2007, for the first time, the number of people living in cities surpassed the number of people living in the country. In 2019, the urban population had already reached 55% of the total population, and by 2050, it is estimated that just over two thirds of the population will live in urban areas. However, this growth is not constant in all parts of the world: according to the UN World Urbanization Prospects 2018 Report, the global urban population is expected to grow by 2.5 billion inhabitants between 2018 and 2050, with almost 90% of this increase concentrated in Asia and Africa. As populations in these areas increase, so will the demand for energy, food, and water, making resources more scarce. This scarcity will be compounded by the negative impact of urbanization on the climate and the environment.
For many, the aesthetics of wood are powerfully enchanting. With a huge diversity of species and innumerable variations in colors, weights, and textures, wood is one of the most highly appreciated materials of all time. But the unrestrained logging of forests for use in construction has had and will continue to have enormous environmental impacts if precautions such as sustainable management, legitimate certification, or reforestation are not taken. Being an organic material, when used for construction, wood tends to morph under conditions of humidity, heat, and loads, and its fibers eventually deform over time. In addition, wood is a material that does not respond well to environments where it is soaked and dried repeatedly, which can cause it to rot after some time if it is not adequately waterproofed. Therefore, there are some situations where using wood may not be a good idea.
Corals are fundamental to marine life. Sometimes called tropical sea forests, they form some of the most diverse ecosystems on Earth. They serve as a refuge, breeding, and feeding area for dozens of species in the sea, and their absence can negatively affect local biodiversity to a tremendous degree. Yet just as humanity pollutes and destroys, it can also remedy and encourage the creation of more life. This is why shipwrecks of old vessels or the sinking of concrete structures for the creation of artificial reefs are frequently reported as providing immense potential. In Hong Kong, researchers have been developing 3D printed structures using organic materials that can lead to the creation of new opportunities under the sea.
All too often, architects and designers spend hours searching for textures and materials to represent their visions. This struggle takes many forms: from scrolling through Google, Pinterest, and databases in search of the perfect texture, to manually creating one over the course of several hours, or even days. In either case, the result is frequently painful, and rarely perfect. A database organized, reliable, free and easy to use is not always a simple thing to find.
Architextures began in 2014 as a library of high-quality image files, with textures submitted by users or created by the platform itself. Over time, the platform’s creator Ryan Canning noticed that, in his professional work as an architect, the array of static image files available online did not meet the specific textures he was looking for in his design projects. Frustrated with the endless process of searching, editing and overlaying textures in Photoshop, Ryan reinvented Architextures in 2019 as an interactive tool where designers like himself could create specified, high-quality textures in seconds. And importantly, being free to use for personal and educational use, with professional accounts available for a small fee to support the tool’s development.
At the 2014 Venice Biennale, celebrated architect and curator Rem Koolhaas chose an unusual curatorial theme. Rather than exploring the major issues that plague modern society or their manifestations in the profession of architecture, the event's theme, "Fundamentals," and its main exhibition, "Elements of Architecture," examined in detail the bare fundamentals of buildings, simple elements used by everyday architects for everyday designs. According to Koolhaas, “Architecture is a profession trained to put things together, not to dismantle them. Only by looking at the elements of architecture under a microscope can we recognize cultural preferences, technological advances, changes triggered by the intensification of global exchange, climatic adaptations, local norms and, somewhere in the mix, the architect's ideas that constitute the practice of architecture today.”
The Brundtland Report, 1987 - "Our Common Future" - introduced the notion that the sustainable use of natural resources must "meet the needs of the present generation without affecting the ability of future generations to meet theirs." Since then, the term sustainability has been popularized and, often, trivialized in our daily lives. In the construction industry, this is no different. As much as we know that to build, we need to destroy, how is it possible to mitigate the effects of construction during the useful life and demolition of buildings? A sustainable building, in its design, construction, and operation, must reduce or eliminate negative effects overall and may even generate net positive impacts on the climate and environment – preserving resources and improving the quality of life of the occupants simultaneously. To say that a building is sustainable is easy and even seductive. But what exactly makes sustainable construction?
Answering this question is not a simple exercise. That is why, in the last 30 years, several building sustainability certifications have been created. Through outsourced and impartial evaluations from different sources, they aim to verify the sustainable aspects of any construction. Each of them addresses particular building elements and is typically focused on certain regions of the world. While there are some certifications that verify whether the building meets certain efficiency criteria, others create different classifications, assigning a score based on these evaluations. Below, we list some of the primary sustainability certifications around the world – ranked alphabetically – and include their main architectural applications alongside a brief explanation:
In the dome of the Pantheon in Rome, several construction techniques were used to allow such a bold construction to stand. One concerns the composition of the concrete (in this case, non-reinforced concrete) with different densities throughout the structure. Closer to the top, lighter stones were used in the mixture, reducing the dome's weight retaining the solidity of the base. Another technique was the inclusion of “coffers”, which are nothing more than subtractions in the concrete, reducing the weight of the dome while maintaining a cross section sufficiently robust to support its own weight. Built almost 1,900 years ago, this building still surprises us with the genius of the solutions. Using a quantity of materials just high enough to fulfill its primary function, and creating intelligent structures as a result, is just one of the lessons that this building provides.
Isometric study of unitised curtain wall elements from The Shard. Image Cortesia de The Donnies
Facades are the first barrier outside a building. They weather rain, snow, winds, sun, and temperature changes. Their primary function is to keep interiors free of water, thermal bridges intact, and internal atmospheres as comfortable as possible. This reality is why the detailing of facades is usually done by experienced architects or specialized companies, who understand materials and construction methods well and are able to select the best solutions for each circumstance. But some projects have facades with such complex detailing, encompassing thousands and thousands of lines, hatches, and dimensions, that they inspire a particularly awestruck response. Making these drawings didactic, technical, and, above all, beautiful, is a task few can achieve to perfection. We spoke with Troy Donovan, the creator of the 188,000 follower Instagram account @the_donnies, who does this job like few others. Read the interview below.
Despite a bad reputation in children's stories, straw buildings can be sustainable, comfortable, and, above all, solid and resistant. Several studies and experiments have been carried out with this agricultural waste substance, qualifying it as an potential material for the construction of walls, with good thermal, acoustic, and even structural characteristics. In addition, it is a renewable resource and easily constructed. Below, we'll talk about the characteristics of this material and how much more it would take than the breath of a big bad wolf to bring down a house made of straw.
The Lisbon Architecture Triennale has announced the appointed Chief Curators for their 6th edition, which will take place in 2022. The architects Cristina Veríssimo and Diogo Burnay were chosen given their great professional experience in the various aspects of the discipline that includes education, academic, and project activity in Portugal and abroad. The duo will be dedicating three years to preparing the Triennale 2022, beginning with an exploratory period for research, a team definition phase, a phase of structuring the programme design, ending with its implementation.
From its starting to point as a tree to its product form as a beam or piece of furniture, wood used in architecture and interior design goes through several stages and processes. A renewable resource and popular traditional building material, wood is also often cited as a promising construction material of the future, one that is suitable for the new demands of sustainability. But unlike concrete, whose molds can create even the most complex curves, wooden architecture most commonly uses straight beams and panels. In this article, we will cover some techniques that allow for the creation of curved pieces of wood at different scales, some of which are handmade and others of which seek to make the process more efficient and intelligent at a larger scale.
A lot of prejudice and contradictions surround the history of Cannabis sativa around the world. It is estimated that hemp was one of the first plants to be cultivated by mankind. Archaeologists have found remnants of hemp fabrics from ancient Mesopotamia (now Iran and Iraq) that date back to 8,000 BC [1]. There are similar records in China documenting the consumption of hemp seeds and oils, dating between 6 and 4 thousand BC. Upon its arrival in Europe, its main use was for the manufacture of ship ropes and fabrics: even the sails and ropes of Christopher Columbus' ships were made of this material. Likewise, the first books after Gutenberg's invention of the printing press [2] and many paintings by Rembrandt and Van Gogh were made of hemp.
The use of hemp for civil construction is not new either. Mortar made of hemp was discovered on the pillars of bridges built by the Merovingians in the 6th century, in what is now France. It is also well known that the Romans used hemp fiber to reinforce the mortar in their buildings. Nowadays, although there are legal barriers in many countries, the use of hemp as a construction material has had encouraging results, with research demonstrating its strong thermoacoustic and sustainable qualities. Hemp can be shaped into fibrous panels, coverings, sheets, and even bricks.
Some researchers define the Anthropocene as beginning at the Industrial Revolution. Others identify it with the explosion of the first nuclear bomb, and others with the advent of agriculture. Regarding the precise timeline, there is not yet a scientific consensus. But the notion that human activities have been generating changes with planetary repercussions, whether in the temperature of the Earth, in biomes, or in ecosystems, is one that has become increasingly popular. The anthropocene would be a new geological era marked by the impact of human action on planet Earth. This acknowledgement of human impact is particularly disturbing if we consider that if the entire history of the Earth were condensed in 24 hours, humans would only appear in the last 20 seconds. Whether in the massive extraction of natural resources or in the carbon release from vehicles and industries, it is well known that a large part of the fault lies with construction activities, especially in the production of solid waste due to waste and demolition. In Brazil, for example, civil construction waste can represent between 50% and 70% of the mass of solid urban waste [1]. Many will end up being discarded irregularly or thrown in landfills to be buried indefinitely.
Having access to a bathroom is, above all, a factor of dignity. As basic as this fact may seem, the WHO (World Health Organization) estimates that 2 billion people worldwide do not have access to basic sanitation facilities, such as bathrooms or latrines. Such inadequate sanitation causes 432,000 deaths annually, mainly from diarrhea, in addition to being an aggravating factor for several neglected tropical diseases including intestinal worms, schistosomiasis, and trachoma. In 2010, the UN (United Nations) labeled sanitation a basic right, alongside access to drinking water.
In her Sesc Pompéia theater, architect Lina Bo Bardi designed a central stage revealing the structure and all the functions of the theater's program, and renouncing traditional theater seating. Her seats were not upholstered, were close to each other, and encouraged a more aware, attentive, and upright posture among the audience, thus honoring, according to her, the ancient art of theater.
In the same way that the characteristics of architectural spaces alter our mood, feelings, concentration, and learning, so does the integral design element of furniture, which must be taken seriously when considering comprehensive user experiences. Regarding schools and learning environments in particular, the same attention given to teaching materials is often not conferred on furniture and physical structure.
The issue of the housing deficit plagues virtually all countries today. According to a study by the McKinsey Global Institute, 330 million urban families worldwide lack decent housing, or housing costs are so heavy that they need to forgo other basic needs such as food, heath care, and education for children. According to the WRI (World Resources Institute), it is estimated that 1.6 billion people will lack adequate housing by the year 2025.
Solving this problem is, understandably, complex. Having good housing means much more than simply having a roof over your head. Good housing is essential for physical and financial security, economic productivity, and human well-being. In addition to adequate comfort, it is essential that these houses are integrated with the city, jobs, infrastructure, and city services. For people living on the street, this issue is even more delicate. Among many other necessities, having a place to structure a life is essential to moving forward and prospering. One project that confronts this issue is Emerald Village Eugene (EVE), an affordable micro-housing community with a unique housing model structured to enable residents to transition from the streets.
Videos
Análises estruturais. Image Cortesia de Oliver Krieg
When someone mentions architecture visualization, most immediately think of sketches, computational renderings, and drawings. This connection occurs because we almost always associate visualization with picturing a project that is not yet built, either for the validation of aesthetic and functional decisions or to represent the idea to a client, who is often unfamiliar with technical drawings. Yet in addition to considering superficial elements such as materials, plans, textures, and colors, when carrying out a project, the architect needs to be aware of technical issues that are invisible to the naked eye, which may directly influence the project.
It is difficult to find someone who has never dreamed of building or having a tree house to call their own. The idea of a refuge, a space fully integrated with nature and with a privileged view, pleases almost all ages. There are examples of tree houses of all scales and complexities, from small elevated platforms to highly complex structures, including electrical and hydraulic installations. Some sites specializing in the topic (yes, that exists!), offer valuable tips for building these dreams. In general, they subscribe to the motto: "Choose your tree, make your project, but be ready to adapt it!"
