“Calculations that used to take us a week are now done in minutes. That saves us a huge amount of time and money.”
Green-roof potential & greening
Let residents calculate their green-roof potential
The green roof map helps municipalities and water authorities engage residents in greening. Show a public map where citizens can enter an address to see whether their roof suits a green roof, from lightweight sedum to an intensive roof garden. Encourage greening, link subsidies where possible, and support climate adaptation.
- Public map for residents
- Extensive & intensive options
- Rainwater retention & subsidies
Why green roofs?
Green roofs benefit sustainability, the environment and quality of place. Upfront costs are higher than a conventional roof, but the covering lasts longer and can often be recycled afterwards.
Water
Less pressure on sewers
Living environment
Healthier & greener
Roof covering
Longer service life
Subsidies
Municipalities & water boards
“In urban areas it can be up to 10 degrees warmer than the surroundings; green roofs reduce heat and capture rainwater.”
Challenges in greening
Municipalities and water boards want to reduce pluvial flooding and heat, but residents and owners often do not know what is possible on their roof. Without insight, potential stays unused.
Unknown potential
Residents and owners do not know whether their roof suits a green roof. Without a low-threshold map, uptake stays low.
Steering greening
Authorities want to incentivise or tie obligations to insight. Without a per-roof picture, policy and communication are hard to substantiate.
Subsidies & outreach
Subsidies and communication work better when residents immediately see what is possible on their roof. A green roof map links offers to insight and reach.
How the green roof map works
Residents enter their address and immediately see roof suitability, which green-roof type fits, indicative investment, and benefits for rainwater retention and biodiversity.
From address to green-roof advice
The map makes roof suitability understandable for residents and useful for policy. Show potential per roof surface, explain which type of green roof fits, and connect the information to communication or subsidy programmes.
Request a demoAbout green roofs
Green roofs contribute to rainwater retention, climate adaptation and a healthier living environment. With the green roof map you show residents what is possible and steer greening and subsidies.
Extensive green roof
Lightweight vegetation with sedum, herbs, moss and grass. From about 40 kg/m² when 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 a stronger structure and more maintenance.
Rainwater retention
Substrate and roots retain rainwater and release it slowly. Less sewer load during cloudbursts.
Build-up of a green roof
A green roof has a standard build-up of functional layers. From bottom to top: waterproofing (root-resistant), protection layer, drainage layer, filter layer, substrate as growing medium, and the vegetation layer. Different systems may combine functions in one physical layer.
Green roof map: possibilities on your roof
One map, one address: immediate insight into suitability for an extensive or intensive green roof. For municipalities and water boards: steer greening and link subsidies where possible.
Roof suitability
Per address or roof plane: see whether a green roof is possible and which type (extensive/intensive) fits.
- Suitability per building
- Extensive vs intensive
- Load-bearing indication
- Roof pitch
Water & climate
Insight into contribution to rainwater retention and climate adaptation. Support policy and communication to residents.
- Rainwater retention potential
- Sewer relief
- Heat effect
- Biodiversity
Subsidies & policy
Where municipalities or water boards offer subsidies 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.
- Combined with solar panels
- Asbestos roofs & renovation
- Single admin environment
- Public viewer
Current page
Fully integrated
The green roof map is part of the DZHK platform. View green-roof potential alongside solar energy, asbestos roofs and other sustainability data in one place.
Green roof map
What customers say
Experiences from organisations working with DZHK.
“We no longer present our expertise as dry reports, but as interactive map applications. Even people without technical knowledge can use them, which makes DZHK an essential foundation for policy-making.”
“DZHK has helped us make sustainability data accessible to everyone. The platform combines powerful visualisation with an easy user experience.”
“Together with MapGear (DZHK) we created a realistic forecast of solar potential in Groningen for 2035. We combine data on roofs, heat pumps, electric driving and policy choices for a reliable future picture.”
“Together with MapGear (DZHK) we developed the TransitiePlanner. It lets us collect, analyse and visualise data on energy use, climate adaptation and sustainable mobility. We are building a dynamic dossier for sustainable business parks.”
“DZHK has helped us plan and deliver our energy transition projects more efficiently.”
“With Asbestdakenkaart we finally have an overview of our asbestos data and remediation progress. One place to prioritise, monitor and report.”
“Calculations that used to take us a week are now done in minutes. That saves us a huge amount of time and money.”
“We no longer present our expertise as dry reports, but as interactive map applications. Even people without technical knowledge can use them, which makes DZHK an essential foundation for policy-making.”
“DZHK has helped us make sustainability data accessible to everyone. The platform combines powerful visualisation with an easy user experience.”
“Together with MapGear (DZHK) we created a realistic forecast of solar potential in Groningen for 2035. We combine data on roofs, heat pumps, electric driving and policy choices for a reliable future picture.”
“Together with MapGear (DZHK) we developed the TransitiePlanner. It lets us collect, analyse and visualise data on energy use, climate adaptation and sustainable mobility. We are building a dynamic dossier for sustainable business parks.”
“DZHK has helped us plan and deliver our energy transition projects more efficiently.”
“With Asbestdakenkaart we finally have an overview of our asbestos data and remediation progress. One place to prioritise, monitor and report.”
Get started with the green roof map
Request a demo and show residents which green roof fits their address.
Frequently asked questions
Answers to the most common questions about the green roof map.
- What is the difference between extensive and intensive green roofs?
- Extensive: lightweight vegetation (sedum, herbs, moss, grass), from about 40 kg/m² when water-saturated. Intensive: heavier roof garden with shrubs and trees, walkable, more maintenance. The map indicates per roof which type may be possible based on load-bearing capacity and pitch, among other factors.
- Can I get a subsidy for a green roof?
- Many municipalities and water boards offer subsidies for sedum roofs or roof gardens for pluvial flooding and climate adaptation. The green roof map can, where your organisation configures it, link subsidy information and applications. Check current schemes with your municipality or water board.
- How is roof suitability determined?
- We combine roof planes, pitch, load-bearing indications and existing provisions (such as solar panels). The map gives an indication; final design and execution still require advice from a roof or green-roof specialist.
- Does the green roof map work with the solar map and asbestos roof map?
- Yes. On the DZHK platform the solar map, green roof map and asbestos roof map can be used together. You see per roof the options for solar, greening and any asbestos remediation in one overview.
Duurzaamheidskaart products are already used by:
Trusted by municipalities, provinces and organisations in the Netherlands and Belgium
Contact us
Want to know what we can do for your organisation? Contact us for a no-obligation demo. Special requirements? No problem — leave your details below.