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Air Cleansing Tower with Hempcrete and Titanium Dioxide Strategies for Urban Health

Authors:
Alexander Herrera-rojas, Kasia Ziolkowska, Jorge Luis Socha
Air Cleansing Tower with Hempcrete and Titanium Dioxide Strategies for Urban Health
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Incorporating a distinctive exoskeleton with hempcrete and titanium dioxide, the tower serves as an air cleansing facility in Hammersmith, addressing urban pollution while providing multifunctional residential and commercial spaces.
5 key facts about this project
01
Utilizes a unique exoskeleton design for structural support and ventilation.
02
Incorporates titanium dioxide for active air purification in the facade.
03
Features vertical stack ventilation to enhance natural airflow throughout the building.
04
Includes Sky Gardens on multiple levels to promote biodiversity and green spaces.
05
Designed as a multifunctional facility combining residential, office, and retail spaces.

The PURIHIVE tower is located in Hammersmith, West London, and addresses the critical issue of air pollution in urban areas. Designed as an air cleansing structure, it aims to improve air quality while serving a range of functions, including residential, office, and retail spaces. The design emphasizes sustainability and aims to create a healthy environment that integrates well with the community.

Structural Design

The exoskeleton of the tower consists of triangular faceted panels. This distinctive design not only provides support but also allows for effective natural ventilation. By using vertical stack ventilation, the building takes advantage of natural air flow, making it more energy-efficient and comfortable for its occupants.

Material Selection

Key materials were chosen to support the project's environmental goals. Hempcrete is used for its excellent insulation, which enhances energy efficiency. Additionally, titanium dioxide is applied to the exoskeleton. This material helps purify the surrounding air by reacting with sunlight to break down pollutants. This aspect of the design directly contributes to cleaner air in the urban environment.

Programmatic Integration

PURIHIVE features a mix of spaces, with 51 levels dedicated to residential living, 17 levels for offices, and areas for food outlets. This multifunctional approach meets the needs of Hammersmith's growing population while encouraging community interaction. The design includes Sky Gardens at elevated levels, offering green spaces that allow residents and visitors to connect with nature amidst the urban setting.

Environmental Impact

Positioned between Heathrow Airport and central London, the tower plays an important role in the city’s network. Its diverse uses serve both local residents and newcomers, while also targeting the vital need for improved air quality. The incorporation of a green facade and expansive terraces significantly contributes to biodiversity, supporting ecological balance within the urban landscape.

At the top, the design features a series of terraces adorned with lush vegetation, providing both visual appeal and essential support for environmental sustainability.

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Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

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