Rio de Janeiro, Brazil. 2008
Winner of the Planeta Casa Award 2010
The community of Babilonia, located on the hills of Copacabana, a district of Rio de Janeiro, was the site of a great achievement for all involved. The challenge was to provide a sustainable system for the storage of celestial rainwater since the water coming from the city pipes is not enough and contaminated.
The solution was to build a grass roof to catch rainwater and store it in a tank containing a biological filter, which provides clean drinking water and does it ecologically, i.e. chlorine-free and naturally mineralized by the stones on the roof and in the tank.
The process begins with the construction of a wooden structure that must support 150 kilograms per square meter. This weight is composed of gravel, earth, water, and biomass.