Green roof potential & greening
Let residents calculate their green roof potential
The green roof map helps municipalities and water authorities involve residents in greening. Show a public map where citizens can see with one address whether their roof is suitable for a green roof, from light sedum to roof garden. Encourage greening, link subsidies where possible and steer on climate adaptation.
Why green roofs?
Green roofs offer benefits in terms of sustainability, environment and quality of life. Purchase costs are higher than a normal roof, but the roofing lasts longer and can be recycled afterwards.
Challenges in greening
Municipalities and water authorities want to reduce flooding and heat, but residents and owners often don't know what's possible on their roof. Without insight, potential remains unused.
"In urban areas it can be up to 10 degrees warmer than the surrounding area; green roofs reduce heat and capture rainwater."
Climate adaptation Netherlands
Unknown potential
Residents and owners don't know if their roof is suitable for a green roof. Without a low-threshold map, the barrier stays high and greening doesn't happen.
Steering on greening
Municipalities and water authorities want to encourage or link requirements to insight. Without a per-roof view, policy and communication are hard to justify.
Subsidy and information
Subsidy and information work better when residents see directly what's possible on their roof. A green roof map links supply to insight and increases reach.
How the green roof map works
Residents enter their address and see immediately whether their roof is suitable, which type of green roof fits, what the investment is and what it delivers for water retention and biodiversity.
About green roofs
Green roofs contribute to water retention, climate adaptation and a healthier living environment. With the green roof map you show residents what's possible and steer on greening and subsidy.
Extensive green roof
Lightweight vegetation with sedum, herbs, moss and grass. From about 40 kg/m² (water-saturated). Ideal for existing roofs with limited load-bearing capacity.
Intensive green roof
Roof garden with shrubs and trees, walkable and usable as green space. Requires heavier construction and more maintenance.
Water retention
Substrate and plant roots hold rainwater and release it slowly. Less load on sewers during heavy rainfall.
Structure of a green roof
A green roof has a standard structure in functional layers. From bottom to top:
Different systems combine functions in one physical layer.
Green roof map: possibilities on your roof
One map, one address: direct insight into suitability for an extensive or intensive green roof. For municipalities and water authorities: steer on greening and link subsidy where possible.
Roof suitability
Per address or per roof surface: see directly whether a green roof is possible and which type (extensive/intensive) fits.
- • Suitability per building
- • Extensive vs. intensive
- • Load-bearing indication
- • Slope angle
Water & climate
Insight into contribution to water retention and climate adaptation. Support policy and communication to residents.
- • Water retention potential
- • Sewer relief
- • Heat effect
- • Biodiversity
Subsidy & policy
Where municipalities or water authorities give subsidy for sedum roofs or roof gardens: link information and applications to the map.
- • Subsidy information
- • Application support
- • Greening progress
- • Targets
Integration
The green roof map connects to the solar map and asbestos roof map; one platform for roof-related sustainability.
- • Combination with solar panels
- • Asbestos roofs & sustainability
- • One management environment
- • Public viewer
Fully integrated
Green Roofs Map is part of the Duurzaamheidskaart platform. View green roof potential alongside solar energy, asbestos roofs and other sustainability data in one environment.
Duurzaamheidskaart products are already used by:
Frequently asked questions
Answers to the most common questions about the Green roof map.
Extensive: lightweight vegetation (sedum, herbs, moss, grass), from about 40 kg/m² water-saturated. Intensive: heavier roof garden with shrubs and trees, walkable, more maintenance. The map indicates per roof which type is possible based on load-bearing capacity and slope.
Many municipalities and water authorities give subsidies for sedum roofs or roof gardens in the context of flooding and climate adaptation. The green roof map can, where your organisation sets this up, link subsidy information and applications. Ask your municipality or water authority for current schemes.
We combine roof surfaces, slope angle, load-bearing indications and existing features (such as solar panels). The map gives an indication; for final design and execution, advice from a roof or green roof specialist is still needed.
Yes. On the Duurzaamheidskaart platform, solar map, green roof map and asbestos roof map can be used side by side. So you see per roof the options for solar panels, green and possibly asbestos removal in one overview.
Contact us!
Want to know what we can do for your organisation? Feel free to contact us for a no-obligation demo. Have special requirements? No problem! Leave your details below.
Egbert Griffioen
Project Manager Duurzaamheidskaart