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Inspiration Card
Nature Based Solution
Green Roofs

N12 Extensive Green Roof

Copyright
Extensive green roof Oversum- Winterberg
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Challenges
Climate Resilience Water Management Natural and Climate Hazards Biodiversity Enhancement Air Quality Health and Well-being Social Justice and Social Cohesion
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Description

Extensive green roofs are lightweight systems that contain a thin layer of substrate covered with low growing, rapidly spreading vegetation. Typical groups of vegetation for extensive green roofs include sedums, herbs, wildflowers, grasses and mosses, since they are relatively hardy and can survive in low-nutrient conditions. Once established, extensive greens roofs require minimal maintenance and management and offer benefits like localized air temperature and pollution reduction and contribute to water management.  

Conditions for Implementation
  • Flat or relatively flat rooftops
  • Sufficient load-bearing capacity including underground support structures
  • Waterproofing the surface of the roof
  • Sustainable irrigation facilities for critically dry periods
Similar Terminology
Low-Profile green roof
Eco-Roof
Extensive roof greening
Performance
    Cooling Service Transpiration ○ ○ ○
    Shading ● ○ ○
    Evaporation ● ○ ○
    Building (Insulation) ● ○ ○
    Reflection (Albedo) ● ○ ○
    Surface Water Regulation Water Conveyance ● ○ ○
    Water Infiltration ○ ○ ○
    Water Retention ● ○ ○
    Water Storage ○ ○ ○
    Water Reuse ○ ○ ○
    Water Purification Water Filtering ○ ○ ○
    Water Bio-remediation ○ ○ ○
    Air Purification and Noise Reduction Deposition ○ ○ ○
    Air Biofiltration ○ ○ ○
    Noise Reduction ○ ○ ○
    Biodiversity Habitat Provision ● ○ ○
    Connectivity ● ○ ○
    Socio-Cultural Services Beauty / Appearance ● ○ ○
    Usability / Functionality ● ○ ○
    Social Interaction ○ ○ ○
    Education ○ ○ ○
    Provisioning Service Food / Energy / Material ○ ○ ○
    Climate Regulation CO2 Sequestration ● ○ ○