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.
Hemp is one of the oldest crops domesticated by humans. With its wide variety of uses and applications, it’s easy to understand why it’s been a desirable product throughout history. Hemp seeds and flowers are used in health foods, medicines, and organic beauty products; the fibers and stalks of the hemp plant are used in clothing, paper, and biofuel. Today even a waste product of hemp fiber processing, so-called hemp shives, is being utilized to create sustainable building materials like hempcrete.
App update provides CO2 emission data on chosen routes. Photo: Pixabay
The GoogleMaps application will direct drivers to more eco-friendly routes that generate the lowest carbon footprint using mainly traffic data, road slopes and inclines, and other factors.
The eco-friendly option will be the application's default route if comparable options take about the same time. When alternatives are significantly faster, Google will offer choices and let users compare estimated emissions.
https://www.archdaily.com/960036/google-maps-to-start-showing-routes-with-the-lowest-carbon-footprintEquipe ArchDaily Brasil
In increasingly denser urban environments, there is a new-found interest in underused spaces as opportunities for further development. Representing up to 25% of cities' land area, rooftops are among the most exciting spatial resources. From sustainable infrastructure and urban farming to social spaces and cultural venues, the article looks into the potential of creating a multi-layered city through the activation of urban rooftops.
Talking to the Louisiana Channel, German architect Anna Heringer outlines the way she works and her multi-disciplinary approach to architectural practice. Growing up in a small town at the Austrian-Bavarian border close to Salzburg - Heringer spent a year living and working in Bangladesh at the age of 19, a place that is now home to a majority of her office's projects. Heringer describes herself as a mix of things in addition to being an architect, describing herself as an activist and a development worker - using her creativity to explore ideas in a variety of forms and media.
Inspired by the colors and textures of the surrounding environment, Pritzker Prize winners RCR Architectes have translated the Algarve's landscape into new residences and facilities at the Palmares Ocean Living & Golf Resort. A total of 37 new signature apartments and luxury villas are currently under construction, with completion due dates expected between summer 2021 and 2022.
The American architect, designer, and futurist Buckminster Fuller once defined the Dymaxion principle as “constructing ever more with ever less weight, time, and ergs per each given level of functional performance.”
Researchers point out that "proto-greenhouses" arose to fulfill the desire of the Roman Emperor Tiberius (42 BC to 37 AD) to eat cucumbers every day of the year. Since it was impossible to grow the vegetable on the island of Capri in winter, his gardeners developed beds mounted on wheels that they would move into the sun when possible, while on winter days they would place them under translucent covers made of Selenite (a type of gypsum with a glassy appearance). But the production of large-scale greenhouses only became possible after the Industrial Revolution with the availability of mass-produced glass sheets. Since then, they have been used to grow food and flowers, forming a microclimate suitable for plant species even in places with severe climates. But in some cases, these artificial growing conditions can also form interesting living spaces. The recent Lacaton & Vassal awards rekindled this interest. How is it possible to create greenhouses that can be good for both humans and plants?
Along with concerns about our environment, new movements, words, concepts, and terms related to these issues constantly emerge, which require us to always remain up to date. The word sustainability itself faced some resistance until it was incorporated into common vocabulary and used widely in the most diverse contexts. Currently, much discussion surrounds the terms circular economy, resilience, the 4 Rs, urban mining, and others. In addition, there are some sustainability-related movements that have been incorporated from activism in other fields, showing the fluidity of such issues. One such initiative is the 0 kilometer materials movement, which has been featured in manifestos and some projects, albeit timidly, in recent times.
There was a time when people appreciated self-contained architecture, in which the building envelope would not function as a moderator between the climate outside and the interior environment but rather as an inert and independent barrier. Countless mechanical devices and electrical ventilation, heating, and cooling equipment. A real machine.
Today, architects are increasingly concerned with the interaction between architecture and the environment in which it is inserted, thus assuming responsibility for the thermal comfort of interior spaces, using design strategies for natural climate control.
HerCity is a platform that involves women in urban development, in order to make better cities for everyone. Turning the tables and putting girls in the expert position, the digital toolbox aims to create more inclusive, equal, and sustainable cities and communities. The initiative makes methods and tools available to urban actors globally, in order to support cities in integrating girls’ participation in their long-term strategies.
Launched on Women’s day 2021, the guide for urban planning and design is a collaborative effort between UN-Habitat and Global Utmaning, the Swedish independent think tank. ArchDaily had the chance to talk with the team behind this digital toolbox, discussing the narratives, the process, and inclusive planning on a worldwide level.
The climate crisis has revealed the poor planning of our cities and the spaces we inhabit. Both construction and projects contribute to high carbon gas emissions. Fortunately, there are several ways to intervene to bring change into this scenario, either through materials and techniques adopted in each initiative or through geographical and social impact. In this scenario, the only certainty is that: to think about the future we cannot ignore the "green" in all its recent meanings from nature to sustainability, and ecology.
The principles of bio-climatic architecture, when applied with an understanding of the surrounding climate and geography, can simultaneously increase a building's efficiency and create a more comfortable living space. Passive measures like solar panels, rainwater and grey water harvesting, openings for natural light, and cross-ventilation are all low-cost, high yield methods of increasing a home's thermal comfort and efficiency and decreasing its carbon footprint.
Students at the School of Engineering, RMIT University recently published a study experimenting with a new form of waste management and recycling. As they note in their research, cigarette butts are the most commonly discarded single waste item in the world, with an estimated 5.7 trillion having been consumed around the globe in 2016. However, the materials in cigarette butts—particularly their cellulose acetate filters—can be extremely harmful to the environment due to poor biodegradability. The RMIT study builds on a previous research study by Mohajerani et. al (2016) that experimented with adding discarded cigarette butts to clay bricks for architectural use. In their research, the RMIT students found that such a measure would reduce the energy consumption of the brick production process and lower the thermal conductivity of the bricks, but that other issues including bacterial contamination would have to be addressed prior to successful implementation. Below, we explore this research in more detail, investigating its relevance to the architecture industry and imagining possible futures of application.
https://www.archdaily.com/956164/is-it-possible-to-create-lightweight-bricks-by-recycling-cigarette-buttsLilly Cao
Amazon has just revealed the proposed design for its second headquarters, in Arlington, Virginia, just outside of Washington, D.C. Designed by NBBJ, the project “creates an environment that prioritizes healthy work, celebrates nature and engages the community across multiple scales.” Encompassing 2.8 million square feet of offices, public gathering areas and street-front retail, the intervention aims to create a healthier workforce and community.
The Un-Habitat or the United Nations agency for human settlements and sustainable urban development, whose primary focus is to deal with the challenges of rapid urbanization, has been developing innovative approaches in the urban design field, centered on the active participation of the community. ArchDaily has teamed up with UN-Habitat to bring you weekly news, article, and interviews that highlight this work, with content straight from the source, developed by our editors.
Around 440 fast-growing cities in emerging economies will contribute by 2025, to nearly half of global economic growth. If given the right planning and management tools, this urbanization “can be transformative, creating jobs, reducing poverty, and improving citizens’ quality of life”. As a matter of fact, the Global Future Cities Programme (GFCP) aims to deliver this required support. Based on urban planning, transport, and resilience principles, the program provides “technical assistance for a set of targeted interventions to encourage sustainable development and increase prosperity while alleviating high levels of urban poverty”.
In recent years, we have published many articles about wood. Addressing trends of use, possibilities for log wood, panels, curves, and finishes, innovations in tall building structures, and wood's behavior towards fire, these articles have explicated a wide variety of the material's applications and characteristics. A specific type of wood, Cross Laminated Timber (CLT), has emerged as highly structurally efficient with thermal, seismic, and even sensory benefits, described by specialists as the concrete of the future. But when we post these articles on social media, we frequently encounter comments from our readers concerned about the impact of deforestation. Although we may see wood as a great building material of the future, we must ask ourselves: is it possible to continue cutting down trees and using their wood while still calling it sustainable?
Modular construction by Maisons Laprise, Quebec, Canada. Image Courtesy of QWEB
Proven and effective construction methods are not static, instead they're always improving. In Quebec, Canada, light wood frame and modular manufacturers are always pushing the limits of innovation. Their craft is now linked to building systems on a bold scale with offsite light wood frame construction.
