Eduardo Souza

Brands and Materials Senior Editor. Architect and Master from Federal University of Santa Catarina (UFSC).

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Olfactory Comfort in Architecture and the Impact of Odors on Well-Being

Cooking shows have never been more popular around the world than they are now. Whether from recipes, reality shows, or documentaries, writer Michael Pollan points out that it is not uncommon to spend more time watching than preparing our own food. This is a very curious phenomenon, as we can only imagine the tastes and smells on the other side of the screen, which the presenters often like to remind us. At the same time, when we watch something about the Middle Ages, polluted rivers, or nuclear disasters, we are relieved that there is no technology to transmit smells across the screen. In fact, when dealing with odors (more specifically the bad ones), we know how unpleasant it is to be in a space that doesn't smell good. When dealing with buildings, what are the main sources of bad smells and how can this affect our health and well-being?

What Are Refractory Bricks and What Are They For?

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Ranging from yellow, to gray, to traditional red and orange, bricks are ubiquitous in many of our cities and widely used in construction. Briefly, the manufacturing process of traditional bricks involves molding clay and firing it in ovens, facilitating the creation of solid blocks, perforated blocks, cobogós, tiles, and other shapes. Ceramic bricks are inexpensive; easy to find; boast strong resistance, thermal inertia, and finish; and do not require such specialized labor for construction. But if the installation is done near sources of high heat, the common brick will end up cracking and breaking, making refractory bricks more suitable. But what does that mean?

Incorporating Fire in External Projects: Tips and Examples for Fireplaces

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Yuval Noah Harari points out that, around 300 thousand years ago, Homo erectus, Neanderthals, and ancestors of Homo sapiens already used fire daily. According to the author of the international bestseller “Sapiens,” fire created the first significant gap between man and other animals. "By domesticating fire, humans gained control of an obedient and potentially limitless force." Some scholars even believe that there is a direct relationship between the advent of the habit of cooking food (possibly due to the domestication of fire) and the shortening of the intestinal tract and growth of the human brain, which allowed human beings to develop and create everything we now have.

The Evolution in Understanding of Human Scales in Architecture

“The whole hand will be the tenth part of the man; From the bottom of the chin to the top of the head is an eighth of its height; From the nipples to the top of the head it will be the fourth part of the height.” If you're still here without going to get a measuring tape, these phrases were written by Marcus Vitruvius Pollio, a Roman architect who lived in the 1st century BC, who delineated them in his influential treatise “De Architectura Libri Decem” – Ten Books on Architecture. The data presented by Vitruvius was compiled and depicted visually around fifteen hundred years later by Leonardo Da Vinci in his famous work “Vitruvian Man,” which is reproduced in all different contexts today, from book covers to kitchen aprons.

Metal Profiles Coated with Wood Veneers: 7 Options for Applying them to Architecture

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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.

Rethinking Artificial Reef Structures through 3D Clay Printing

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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.

A Free Tool to Create Textures for Architectural Images

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.

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Hinges and Slides: Mobile Mechanisms to Take Advantage of Tiny Spaces

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.”

Evaluating Buildings: 12 Green Building Certifications to Know

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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:

Concrete Slabs with Bubbles? How Biaxial Voided Slabs Work

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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.

The Beauty of Construction Details: A Conversation with @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.

Straw Bales: Building Efficient Walls with Agricultural Waste

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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.

Cristina Veríssimo and Diogo Burnay Appointed Curators of 2022 Lisbon Architecture Triennale

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.

How to Bend Wood

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.

Hemp Concrete: From Roman Bridges to a Possible Material of the Future

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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.