Natural Ventilation: The Latest Architecture and News

Snøhetta has announced a project to rebuild the Refuge de Barroude, a mountain refuge located in a UNESCO World Heritage site in the Pyrenees Mountain range of France. The old building, destroyed in an accidental fire ten years ago, is set to be revived as a stop-off point for hikers on the Haute Route des Pyrénées and as a support center for the staff of the National Park. The next phase of the project is due to begin in 2025.

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As the temperature drops in the Northern Hemisphere, cold outdoor spaces are overcome with frost, ice, and snow, and we find ourselves rushing from one heated indoor environment to the next, less willing or less able to stop and appreciate the natural world around us.

Apart from dragging a spruce or fir tree inside and dressing it up in yuletide costume, we tend to leave the real natural world to its own seasonal devices until it reemerges in Spring. However, by inviting the positive effects of plant life into our homes, we can improve both our mental health and the air we breathe by filling them with peace and joy all year round, not just at Christmas.

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Walking down the streets of cities like Hanoi and Saigon in Vietnam, you might encounter houses with surprisingly narrow facades in contrast to the stacking of three to five floors, with windows for ventilation and natural light only on the front facade. These are the famous traditional Tube Houses. According to ancient popular culture, this type of housing emerged due to property taxes being based on the width of the facade, but the true reason is to optimize land use, allowing a larger number of plots in the same square.

However, this legacy is now being recreated in contemporary designs by Vietnamese architects. Old facades give way to innovative solutions featuring atriums for natural lighting and ventilation, courtyards and interior gardens, greenery incorporated into different environments, split-levels, etc., allowing for high-quality spaces. With that in mind, we have put together a selection of Tube Houses, together with their respective section drawings. Check out below:

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MVRDV, in collaboration with UAD, has been selected as the winner of the competition to design a new library for Wuhan, poised to become one of the largest libraries in China. The large-scale project creates diverse study environments and offers reading and studio spaces while also connecting to its surroundings via three large openings that display the life inside the buildings to invite visitors to enter. Spanning over 140,000 square meters, the distinctive building adapts its volume to reflect its position at the confluence of two main rivers in Wuhan and become a recognizable landmark for the city.

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While some aspects of comfort and well-being in an indoor environment are related to external factors, such as natural lighting and ventilation, others are directly associated with the interior layout and the sensations created by architecture in the people living in that space.

It is always challenging to balance all of the elements that can provide greater comfort and well-being in interior design, particularly in small environments that must be fully optimized since it is not always possible to create large openings to the outside or even to accommodate the whole architectural program in a conventional manner.

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It’s easy to think of Modernism as inseparable from air conditioning, simply because we are surrounded by so much of it that is. A valuable reminder that this wasn’t always the case is provided in University of Pennsylvania architecture professor Daniel A. Barber’s Modern Architecture and Climate: Design Before Air Conditioning (Princeton University Press), which outlines the story of the febrile, flexible, and often-forgotten early experiments in climate control.

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.