Chief designer and President of JAHN, Francisco Gonzalez-Pulido, recently revealed his energy- and water-efficient proposal for Mexico City's new international airport. Like the design of Foster + Partners, which was crowned the winner of the Mexico City international airport design competition last week, JAHN's vision combines cultural sensitivity with impressive net-zero energy and net-zero carbon systems. Created in collaboration with Francisco Lopez-Guerra of LOGUER and Alonso de Garay of ADG, the project was designed to meet the highest standards of sustainability.
To bring glare-free and uniform levels of daylight into the airport, the terminal is topped by a lightweight and modular roof design made from twin-wall polycarbonate with nanogel infill sandwiched between two PTFE layers. In addition to minimizing dependence on artificial light by 90%, the roof structure also provides superior levels of thermal transmittance, solar control performance, and acoustic separation. If constructed, the inner PTFE membrane would have also been treated with a low-E coating to minimize ultraviolet rays and further reduce heat transfer.
The terminal design is outfitted with a passive, renewable energy system comprising earth tube pre-conditioning to halve heating and cooling burdens as well as a radiant floor system to decouple the heating and cooling from the fresh air systems. A natural wetland design feature collects and filters rainwater to ensure that none of the onsite rainwater enters the municipal sewer system. The architects calculate that the addition of a 700,000-square-foot PV system would be sufficient to push the design to net carbon zero levels.
Images via JAHN