Sourced from Wired UK
Perched on the edge of the Hudson river, this is the largest green roof in New York City, spanning 89,001 square metres. Developed by London-based material manufacturer Low and Bonar, the roof’s huge size means it absorbs 25.7 million litres of rainwater a year.
The green roof sits on top of the Javits Centre, the largest convention space in Manhattan. Before it was built, the building was sheltered by a roof made of glass: it looked good, but leaked heat, and the reflective surface killed hundreds of confused birds a year. So, in 2010, the Javits Centre turned to Low and Bonar for a solution.
The result was a roof made of lightweight polymer mats, woven into a carpet like geotextile, filtering soil whilst capturing and absorbing water, like the earth.
“The roof provides high levels of insulation, reducing energy consumption in some buildings by a quarter,” says Brett Simpson, Low and Bonar’s CEO. On top of this, bird deaths were reduced by 90 per cent.