Ventilation: The Latest Architecture and News

The UIA World Congress of Architects 2023 is an invitation for architects from around the world to meet in Copenhagen July 2 – 6 to explore and communicate how architecture influences all 17 UN Sustainable Development Goals (SDGs). For more than two years, the Science Track and its international Scientific Committee have been analyzing the various ways in which architecture responds to the SDGs. The work has resulted in the formulation of six science panels: design for Climate Adaptation, design for Rethinking Resources, design for Resilient Communities, design for Health, design for Inclusivity, and design for Partnerships for Change. An international call for papers was sent out in 2022 and 296 of more than 750 submissions from 77 countries have been invited to present at the UIA World Congress of Architects 2023 in Copenhagen. ArchDaily is collaborating with the UIA to share articles pertaining to the six themes to prepare for the opening of the Congress.

In this fourth feature, we met with co-chairs of design for Health architect Arif Hasan, former Visiting Professor NED University Karachi and member of UNs Advisory Group on Forced Evictions, and architect Christian Benimana, Senior Principal and Co-Executive Director at MASS Design Group

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Before fossil-fuel powered air-conditioning became widely available, people living in harsh climates had nothing but natural means to ventilate their spaces and control the interior temperature. To do so, they took into account several external factors such as their location, orientation with respect to the sun and wind, their area's climate conditions, and local materials. In this article, we explore how ancient civilizations in Western Asia and North Africa have used windcatchers to adapt to the region's harsh climate and provide passive cooling solutions that are still being used in contemporary architecture, proving that local approaches to climate adaptability are fundamental to the development of today's built environment.

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"Here in the tropics, it's the shade not the stove that refreshes and brings people together," says Bruno Stagno about tropical architecture.

Guatemala ha estado construyendo su sombra a lo largo de los años. Nos encontramos con 3 ejemplos que proponen interesantes respuestas a este clima. Proyectos que materializan tanto grandes cubiertas con pendientes para dar sombra y evacuar el agua de lluvia con rapidez, como fachadas perforadas que permiten el ingreso de la brisa y la ventilación interior.

Ventilation serves two main purposes in a room: first, to remove pollutants and provide clean air; second, to meet the metabolic needs of the occupants, providing pleasant temperatures (weather permitting). It is well known that environments with inadequate ventilation can bring serious harm to the health of the occupants and, especially in hot climates, thermal discomfort. A Harvard University study demonstrated that in buildings with good ventilation and better air quality (with lower rates of carbon dioxide), occupants showed better performance of cognitive functions, faster responses to extreme situations, and better reasoning in strategic activities.

It is not difficult to see that ventilation plays a vital role in ensuring adequate air quality and thermal comfort in buildings. We have all felt it. But when we talk about ventilation, a light breeze from the window might come to mind, shifting through our hair and bringing a pleasant aroma and cooling temperature that brings fresh air and comfort. In mild climates, this experience can even be a reality on many days of the year. In harsh climates or polluted spaces, it could be quite different.

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Patios and gardens play a crucial role in a project's planning and layout. In some instances, they serve as organizing elements while in others, they improve the quality of life in a space by providing light, ventilation, and a connection to the outdoors while maintaining the privacy of the inhabitants. 

Nothing is more rational than using the wind, a natural, free, renewable and healthy resource, to improve the thermal comfort of our projects. The awareness of the finiteness of the resources and the demand for the reduction in the energy consumption has removed air-conditioning systems as the protagonist of any project. Architects and engineers are turning to this more passive system to improve thermal comfort. It is evident that there are extreme climates in which there is no escape, or else the use of artificial systems, but in a large part of the terrestrial surface it is possible to provide a pleasant flow of air through the environments by means of passive systems, especially if the actions are considered during the project stage.

This is a highly complex theme, but we have approached some of the concepts exemplifying them with built projects. A series of ventilation systems can help in the projects: natural cross ventilation, natural induced ventilation, chimney effect and evaporative cooling, which combined with the correct use of constructive elements allows improvement in thermal comfort and decrease in energy consumption.

This installation is a bespoke attempt to simplify and reinterpret the concept of air-conditioning, understanding that standardized solutions may not be universally applicable given the constraints of cost and surrounding environment. Using computational technologies, the team at Ant Studio has reinterpreted traditional evaporative cooling techniques to build a prototype of cylindrical clay cones, each with a custom design and size.

In response to the overwhelming growth of cities and neighborhoods in China, architects from Atelier Archmixing’s Shanghai office, have developed a series of proposals that seek to return value to sensitive interior spaces and improve the user’s quality of life through design.

The project consists of an interesting light fixture; a bamboo structure similar in shape to an umbrella, that lets natural light and fresh air into the building.

One of the great ironies of modern urban life is the underlying disconnect that exists amongst us global citizens, despite living and functioning within such dense and close proximities. In order to address this issue in the context of China’s urban landscape, New York firm NO ARCHITECTURE has proposed two alternatives to the typical high-rise – two vertical residential typologies that feature a combination of courtyards, terraces, and gardens, and could be located in a wide variety of cities.

“Conceived around a series of cascading shared walls, ventilated courtyards, stepped terraces, and wind towers, these new vertical organizations re-connect urban living to nature, suggesting how we can live in close proximity today and can continue to do so sustainably for generations to come,” explained the architects.

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Professor Alan Short of the University of Cambridge has published a book advocating for the revival of 19th-century architectural ideas to address the crippling energy use of modern skyscrapers. The Recovery of Natural Environments in Architecture proposes an end to the architectural fetish for glass, steel, and air conditioning, instead drawing inspiration from forgotten techniques in naturally ventilated buildings of the 1800s. The book is a culmination of 30 years’ research and design by Prof. Short and his colleagues at the University of Cambridge.