Raw MaterialsArchDaily's Monthly Topic - February 2020

Often recognized as one of the most widespread constructive materials in the world, brick is, with no doubts, very versatile, low-cost and easily applied. Although it usually used in vertical surfaces, it also presents excellent properties when applied to horizontal ones, like floors.

Having been utilized as early as the Roman era in buildings of almost every scale, it is almost impossible to think of a building that does not have at least one concrete element. In fact, it is the most widely used construction material in the world, due to its versatility, resistance, ease of handling, accessibility, aesthetics, and other factors. At the same time, its manufacture is also one of the main polluters in the atmosphere, mainly due to the fact that the cement industry emits around 8% of all global emissions of carbon dioxide (CO2).

The advent of steel in architecture at the beginning of the 20th century is considered as one of the most innovative construction developments in history, allowing architects to create structures with heights, flexibility, and freedom never seen before. Henry Bessemer invented the most successful steel-making process in 1855, but it was not until 1890 that the process was refined enough for construction. The first steel constructions on both sides of the Atlantic, the Rand McNally Building in Chicago and Forth Bridge in Edinburgh, were record-breaking structures of their time.

Building with Natural Biodegradable Raw materials is one of the major recurring green construction solutions of our days. Although some might call it regressive, it is an easy and affordable way to promote Eco-friendly Architecture. The implementation of Hay or Thatched roofs are a prime example of a highly beneficial Sustainable building solution.

The global climate crisis is not only forcing us to rethink architectural design and the way we live, but also the materials and products that shape our built environment, starting from its origins and manufacture. Toward this end, wood has become an efficient alternative to steel and concrete – materials with high levels of embodied energy – and has led to some important architectural innovations that may culminate in its more widespread use worldwide.

As the world of construction becomes more automated, driven by economy, speed, and bureaucracy, architect and professor Marc Leschelier has created an exhibition at the Architektur Im Magazin Vienna, Austria, which inverts this trend. Titled “Cold Cream” the exhibition creates a secluded space, dissociated from the world, where the practice of construction is reduced to the struggle between soft and hard matters as well as spontaneous rises. The exhibition is therefore not an act of architecture, but rather approaching a form of pre-architecture.

With growing awareness of the impact of fossil fuels on the natural environment and their common usage in buildings, architects are increasingly required to specify and accommodate alternative energy sources in their design approaches. Included in this portfolio of progressive energy sources is biomass, a scalable system that combines the usage of raw, sustainable materials with a lower resulting emission of CO2. As a method often heralded as the most transferable alternative to gas and coal, we answer a simple question: what is biomass energy?

While technology and construction have progressed rapidly in recent years, allowing structures to be built taller and faster than ever, remnants of colossal ancient monuments remind us that construction techniques from as long as hundreds of years ago had enormous merit as well. In fact, many of the innovations of antiquity serve as foundations of modern construction, with the Roman invention of concrete serving as a cogent example. Other essential ancient construction techniques, such as the arch and the dome, are now often considered stylistic flourishes, with designs like the Met Opera House reinterpreting classical typologies in a modern context. Yet perhaps the most relevant reinterpretations of ancient construction today are those that do so in the interest of sustainability, renouncing high-energy modern construction methods in favor of older, more natural techniques.