There is more and heavier rainfall, but also more dry and warm periods. Because of the abundance of concrete and asphalt in the city we often experience flooding and heat stress. We need more greenery to collect the rainwater and keep the city cool. But space in the city is scarce. That is why Amsterdam is going to use the unused space of the rooftops in an inventive way. 10,000 m2 of smart blue-green roofs will be realized in the coming years.
The roofs will be realized in five Amsterdam neighbourhoods: Kattenburg, Oosterpark, Indische Buurt, Slotermeer and Rivierenbuurt. These neighbourhoods have been selected because they have a high risk of flooding and damage during heavy rainfall (see Rainproof bottleneck map). Moreover, the roofs of housing corporations that participate in these neighbourhoods are in need of replacement.
Most roofs are realized on social housing of housing corporations De Key, Stadgenoot and the Alliantie. The tenants are informed about the plans and are involved in the project. Also homeowners can have a smart blue-green roof installed. From 2020, a subsidy from the municipality is available for this. Not only the residents of the buildings benefit from the advantages of blue-green roofs, but the entire city and its inhabitants. Also the unobserved inhabitants: many wild plants, insects and birds.
The functioning and effectiveness of some blue-green roofs has already been investigated and scientifically proven with the Smartroof 2.0 project. With RESILIO, the roofs are realized on a larger scale for the first time and connected in a smart network. This offers many opportunities for new research. The Amsterdam University of Applied Sciences and VU University Amsterdam are measuring the effects on building, neighbourhood and city level. The HvA also are developing business models for innovative technology. Finally, the Public Health Service of Amsterdam (GGD Amsterdam) is conducting research to the health effects of vegetation. The knowledge and experience is shared with other European cities. In this way we hope that blue-green roofs will also be applied abroad to prevent flooding and heat stress as a result of climate change.
RESILIO is an acronym for ‘Resilience nEtwork of Smart Innovative cLImate-adapative rOoftops’.
The project is a collaboration between the Municipality of Amsterdam, Waternet, MetroPolder Company, Rooftop Revolution, HvA, VU, Stadgenoot, de Alliantie and De Key.
The project is co-financed by the European Regional Development Fund through the Urban Innovative Actions Initiative.
Interested in the partners and their role? Click here.