Rooftop Revolution is involved in numerous projects across Amsterdam and the Netherlands. For this interview, we highlight one such project: Camperstraat.
In the east of Amsterdam, next to one of the city’s largest hospitals, an apartment building now boasts a 750 m² blue-green roof with seven trees. One of the residents, Linda Zwinkels, saw the potential of the unused roof and reached out to Rooftop Revolution and The Urban Jungle Project.
Rooftop Revolution guided the decision-making process within the homeowners’ association, helping to convince other members to invest in a green roof. They also assisted with the subsidy application. The Urban Jungle Project provided lightweight modular greenery solutions, including a modular crate system filled with native plants and herbs, and an innovative solution for placing trees on rooftops. Within a week, the gravel on the roof was replaced with 2,321 plant crates and seven Urban Trees. This green roof now cools the top-floor residents, buffers 35,000 liters of rainwater, offers shade, and enhances urban biodiversity.
How was this project financed?
Jan Henk: “The investment was partly made by the homeowners’ association and supported by a subsidy from the municipality of Amsterdam, making the project more feasible. Additionally, a green roof extends the lifespan of the roofing material, which was factored into the business case, making it more favorable.”
Why is this project special?
Jan Henk: “In Amsterdam, apartment buildings with large vacant roof spaces are usually owned by homeowners’ associations. Decision-making within these associations is often complex and time-consuming. With this project, we managed to decide and build the roof within one year, which is a significant achievement! It’s also special because the residents, who can’t access the roof, still invested in it. This selfless act enhances the neighborhood by improving water storage, reducing heat stress, and boosting biodiversity.”
What made this project a success?
Jan Henk: “Having a group of enthusiastic residents who are committed to the project is crucial. Using a modular system also allows for easier detection and repair of any leaks, which was convenient since the roofing material was not replaced before installing the green roof.”
What were the main obstacles to realizing this project?
Jan Henk: “The main challenges were securing consensus within the homeowners’ association and navigating the subsidy application process. Educating residents about the benefits and addressing concerns about costs and maintenance were also significant hurdles.”
What advice would you give to people who want to realize a similar project?
Jan Henk: “Start by building a coalition of supportive residents. Engage with experts early to understand the feasibility and benefits. Utilize modular systems for flexibility and ease of maintenance. Lastly, explore subsidies and other financial incentives to make the project more affordable.”
Rooftop Revolution is more than just an organization; it’s a movement towards a greener, more sustainable urban environment. Under Jan Henk Tigelaar’s passionate leadership, they have transformed rooftops into vibrant, functional green spaces, setting an inspiring example for cities worldwide. As Jan Henk aptly puts it, “Every unused rooftop is a missed opportunity. By transforming these spaces, we can create a positive impact on our cities, our environment, and our communities.”
For anyone looking to make a difference, the roof above you might just be the best place to start. Join the revolution and help turn our urban landscapes into green havens one rooftop at a time.
