Sustainable construction certifications can play a crucial role in mitigating climate change by establishing solid criteria to foster ecologically responsible practices in the construction industry. They not only give public visibility to industry-accepted standards and monitor performance, ensuring compliance with regulations, but also stimulate the reduction of negative environmental impacts while rewarding buildings that fulfill strict sustainability standards. By establishing higher levels of excellence in projects and constructions, these certifications influence the evolution of construction codes, training professionals, and even changing corporate strategies.
Archaeological findings suggest that the Great Bath of Mohenjo-Daro, the "oldest public water tank in the world," was constructed during the 3rd millennium BC. The significance of this impressive millennia-old structure is unknown, but it is generally believed to be linked to some form of purification ritual of the mysterious Harappan Civilization in the Indus Valley —the first civilization to develop urban planning. Indeed, throughout history, water has consistently captivated human fascination, from ancient ceremonial practices to the modern leisure and sports pools we see today. Whether situated indoors or outdoors, these structures represent a fusion of architectural design and landscape. However, it's no secret that establishing, operating, and maintaining pools involve substantial financial commitments. Every phase of the construction process, from the initial foundations to the meticulous steps of waterproofing, plastering, tiling, and the intricate installation of mechanical and electrical systems, requires significant investment and attention to detail. Therefore, the use of top-tier materials, cutting-edge technical equipment, and the highest level of skill is not merely advisable but absolutely essential.
Modular Eco-Housing . Image Cortesia de Yvonne Witte
When we talk about technology, we often think of robots, supercomputers, data centers or smartphones. But technology also refers to the invention of the first chipped stone tools or the development of the steam engine, which brought about the first Industrial Revolution. The term comes from the combination of the Greek words techne (art, craft) and logos (word, speech) and is nothing more than the application of knowledge to achieve goals in a specific and reproducible way, for practical purposes. In the construction industry, which moves large amounts of resources and people, more technology means incorporating new methods, tools, automation and software that can improve efficiency. As a historically innovation-resistant industry, the construction sector has a huge impact on the environment due to its carbon emissions and exploitation of raw materials. However, as it turns to the digital world, builders have seen technology as a means to optimize practices and identify, build, and manage their projects.
Ancient cyclopean walls were built by overlapping raw stones, supported one on the other, without the use of mortar. The name derives from the Cyclops, the giants of Greek mythology, as their construction required seemingly superhuman effort due to the weight and difficulty of lifting and fitting each wall piece. Cyclopic concrete, in turn, mixes this ancient constructive technique with contemporary materials and techniques. What sets it apart from traditional concrete is essentially the size of the coarse aggregate, which is traditionally composed of stones but can also include brick or concrete remains. Our Projects section includes examples of this constructive technique, which, unlike the cyclopes, clearly carries traces of the workers who built it. We talked to Rafic Jorge Farah, from São Paulo Criação Office, about his experience with this technique in recent works.
Timeless design possesses qualities that resonate with people on a fundamental level, whether through its simplicity, functionality, emotional impact, or adaptability. It continues to captivate and inspire indefinitely, remaining relevant and cherished across generations. This is the primary ambition of any designer, to endure through their creations over time. Philippe Starck, the renowned French designer, has long been at the forefront of the design world. He emphasizes that "The keywords for the future and ecology are longevity, transmission and heritage." His designs aim to go beyond mere aesthetics, incorporating a commitment to timelessness and a dedication to environmentally conscious practices.
Innovation thrives when we pause to observe, question, and reimagine the world around us, turning challenges into opportunities for progress. Nature, in particular, serves as a rich source of inspiration. By observing it, studying its daily challenges, and contemplating its processes, we can discover valuable insights that inspire innovative solutions.
One of these current challenges is the production of concrete, an ancient and extremely popular material that is now accountable for a significant portion of global CO₂ emissions, due to the energy-intensive process of cement production and the chemical reactions involved. It is estimated to be responsible for approximately 8% of the world's annual CO₂ emissions, pumping 11 million tons of CO₂ into the atmosphere every day and consuming 9% of the world's annual industrial water usage. In addition, the world's building stock is expected to double by 2060—the equivalent of building an entire New York City every month for the next 36 years, which means an incredible increase in demand for cement and concrete. Faced with this daunting situation, is there anything we can do? In this article, we speak with Loren Burnett, CEO of Prometheus Materials, which has developed a material that mimics nature's processes to recreate concrete as we know it.
HSG Learning Center / Photo by Roland Halbe. Image Courtesy of Holcim
The need to reduce the construction industry's carbon footprint and its reliance on virgin natural resources is the most pressing issue facing the sector. It is therefore extremely important to foster innovation that can improve existing building materials and make them environmentally friendly, in order to successfully tackle its sizable carbon footprint and close the material loop.
Concrete, for example, has been used since the times of the ancient Romans and has proven to be a durable, strong, affordable and versatile building material. Today, it is the most widely used man-made resource in the world. However, its production methods raise environmental concerns: firstly, due to the high consumption of natural resources such as sand and gravel; and secondly —and more importantly— because of the CO₂ emissions associated with the production of its key ingredient: cement.
Laurent Troost is a Belgian architect with a vast history of projects in the Netherlands, Spain, and Dubai. He made the decision to move to Brazil in 2008, settling in the city of Manaus. In this region filled with challenges and inspiration, Troost developed a unique architectural practice by combining his experiences in designing luxury buildings abroad with structures in the heart of the Amazon. His work gained international recognition and has been honored with multiple awards. On September 4th, 2023, he was in Florianópolis for a lecture at the NCD Summit, where we had the opportunity to discuss his work and his views on architecture and sustainability.
When an architect conceives the opening of a space, the primary objective is to create a frame that enhances the views, optimizes the entry of natural light, and makes the most of the illumination it provides. In this context, we often seek to maximize the proportion of glass, reducing the presence of frames and profiles to a minimum, thus expressing the growing desire for perfect integration between indoor and outdoor environments. To adequately meet this demand, architects and manufacturers are constantly searching for solutions that minimize the visual obstruction caused by structures, pushing the boundaries of what is technically and statically feasible toward minimalist window frames and profiles.
Copenhagen is a living testament to its architectural legacy, innovative urban development, and commitment to sustainability and liveability. The city inspires the whole world with its quality of urban life, made up of efficient and intelligent mobility systems, along with vibrant and interesting public and private spaces. It is in this context that the city has been awarded the title of World Capital of Architecture by UNESCO for 2023, and hosted the World Congress of the International Union of Architects. These milestones represent unique opportunities to highlight the crucial role of architecture and urban planning in building a sustainable future, establishing the city as a prominent international forum for discussing crucial issues related to the urban environment and the ongoing search for innovative solutions.
Visit Copenhagen has developed a series of four videos to explore the city's architectural wonders, guided by local architects. In the first one, which you can watch below, Danish architect Dan Stubbergaard –founder of Cobe– takes us on a captivating tour of Copenhagen, sharing his insights into what makes the city truly exceptional for its inhabitants.
Mass timber has emerged as a sustainable alternative to replace concrete components in construction, as the latter alone contributes to 8% of global CO2 emissions. With various examples across different scales and applications, the material has shown promise in revolutionizing the industry by enhancing efficiency, strength, and comfort. Even when dealing with highly standardized and efficient processes in the manufacturing of structural elements, there is always room for improvement and waste reduction. This is mainly because the traditional industrial process of cutting logs into parts can generate substantial waste.
In this context, A.I. Timber emerges as an innovative construction material designed to minimize waste by preserving the natural contours of trees. Instead of employing conventional methods that involve cutting individual logs into standardized boards, A.I. Timber ingeniously utilizes Artificial Intelligence to fit these logs together like pieces of a perfectly assembled puzzle. To gain further insight into this initiative and the future of this material, we spoke with Carlo Ratti and Mykola Murashko, who coordinated the project.
In the world of interior design and architecture, lighting has evolved from a mere functional necessity into a powerful tool for creating pleasant environments, accentuating design elements, and setting the mood for occupants. Embedded lighting systems have been a game-changer in this regard, especially when combined with LED technology, offering countless possibilities to transform spaces. LED strips, in particular, have revolutionized lighting by providing energy efficiency, longevity, versatility, and customization that was previously challenging with traditional lamp-based lighting. They have fundamentally changed how we illuminate homes, offices, and businesses, ushering in a new era in lighting technology.
Wood is a material with unique characteristics –such as its natural warmth and tactile quality– capable of providing a sense of comfort and well-being, evoking emotions and memories, and creating a cozy atmosphere in interior spaces. Its versatility allows it to be used in building structures, for solar protection, or as interior cladding, and it can be molded, carved, and jointed to create a variety of forms, from simple to complex designs. When properly maintained and kept in ideal conditions, wood can last for hundreds of years. However, as a natural material, it is susceptible to degradation over time due to biological, chemical and environmental factors, which can result in rotting, cracking, erosion and the loss of physical properties.
To mitigate this issue, there are preservation techniques that aim to improve the durability, stability, and resistance of wood to adverse factors, prolonging its life and performance. Among these techniques are treatments with chemical products, the application of pressure, and thermal modification.
Architects such as Alvar Aalto and Tadao Ando showcase the ability of natural light to shape architectural spaces. Aalto's projects employ extensive glass elements, carefully positioned windows and skylights, harnessing the ever-changing characteristics of daylight. Meanwhile, Ando's Church of Light serves as a striking example of how light can hold profound spiritual significance within a space. Its concrete facade features a symbolic cross-shaped opening, which beautifully and symbolically illuminates the interior, creating a unique spiritual ambiance. In addition to being an essential element that enhances interior aesthetics, natural light profoundly impacts the overall quality of life, promoting better well-being and productivity. By taking advantage of the power of natural light, spaces can reduce their dependence on artificial lighting, leading to greater energy efficiency and a more sustainable design approach.
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Sto distribution centre in Hamburg, Germany. Designed by Michael Wilford & Associates, 1994-1995. Photographed by Richard Bryant, image courtesy of Sto
Contrary to popular belief, Roman buildings were not as monochrome as previously thought. Recent discoveries indicate that statues and structures were, in fact, richly adorned with bright colors and exuberant decorations, following the tradition established by their Greek predecessors. This may be surprising, but it shows the presence of color in architecture much earlier than imagined. Color has always played a significant role in shaping the perception and experience of a space, and was prominent in the works of seminal architects such as Le Corbusier and Luis Barragán, for example. Another master of the use of color was Michael Wilford, who, together with his former partner James Stirling gained international recognition with notable public buildings, art centers, museums, and libraries located worldwide. The volumes present in Wilford's architecture are often remembered for their careful use of color, which highlights certain elements and adds other dimensions to the structures.
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Gent Waste Brick. Image Cortesia de Carmody Groarke
There are several symbols that transcend language barriers and are easily recognized and understood by people from different cultures. Examples include the male and female bathroom icons, the cross symbolizing health, and the universal Wi-Fi symbol. Among these universal icons is the recycling symbol, conceived in 1971 by Gary Anderson, an architect and designer who was a student at the University of Southern California. Depicting a continuous cycle, it is a triangle with three arrows arranged clockwise, each of which represents the industry, consumers and recycling.
Central to the concept of the circular economy is the reintegration of materials typically viewed as waste back into the production cycle. This concept is particularly important for the construction industry, which has historically depended on the destruction and extraction of resources in order to exist. In this case, nothing is more symbolic than the brick, which not only represents the construction of new things, but is also the perfect example of how to apply the concept of circularity. Creative minds have embraced the challenge of circularity, devising solutions that transform discarded materials into high-value resources and generating a wide range of products, using raw waste materials that range from seaweed and plastics to human hair. These innovations not only address pressing environmental issues but essentially redefine the way we build and inhabit our spaces. In this article, we highlight seven initiatives that are turning waste into bricks.
The Monadnock Building in Chicago began construction in 1891 and is still in use today. The building features a somber facade without ornamentation and a colossal height - at the time - of 16 floors. It is considered the first skyscraper built in structural masonry, with ceramic bricks and a granite base. To support the entire load of the building, the structural walls on the ground floor are 1.8 meters thick, and at the top, 46 centimeters. One hundred and thirty years later, this construction system remains common and allows for the erection of taller buildings with much thinner walls, accomplishing even new architectural works economically and rationally. But what is structural masonry about, and how can designers use it in architectural projects? And for what kinds of buildings is this system most suitable?
Concrete has enormous resistance to compressive stress, but it is a fragile material in terms of tension, which occurs when forces are applied in opposite directions of a structure, tending to separate the parts. This is why the incorporation of steel into concrete –which provides high levels of strength when stretched– has made so-called reinforced concrete the world's most widely used construction method. In other words, reinforced concrete combines the intrinsic advantages of its two components (concrete and steel reinforcement) to produce an extremely robust, versatile, and practical material. These steel reinforcements, in addition to reinforcing concrete, can also be used in art installations, facades, and even interiors.
