Theatre Green BULDINGS Toolkit – Green Roof


Installing a green roof on your building can offer a number of environmentally and economically benefits. Green roofs can:

  • Improved stormwater management by absorbing rainwater, reducing stormwater runoff and mitigating flooding risks.
  • Enhance air quality as they act as natural air filters, absorbing pollutants and releasing oxygen, improving local air quality.
  • Help to improve energy efficiency as they provide additional insulation, helping to regulate building heat loss and reduce energy consumption from heating and cooling plant.
  • Support biodiversity creating habitats for various species.
  • Help to reduce noise as the layers of vegetation and soil on can dampen noise pollution, creating a quieter environment.
  • Access to green spaces can positively impact mental health, offering stress reduction and improved well-being.
  • Green roofs can also enhance the visual appeal of a building.

When installing a green roof there are several important considerations and potential risks to keep in mind:

  • Green roofs can be more expensive to install than standard roof types.
  • The investment upfront may be higher due to the additional layers and materials required for the green roof.
  • A green roof adds weight to the structure. Ensure that your building’s existing structure can support the extra load. In some cases, additional structural support may be necessary. Proper waterproofing and drainage systems are crucial.
  • Regular inspections and maintenance are essential.

Despite these considerations, green roofs offer numerous benefits, including improved drainage, extended roof lifespan, enhanced thermal performance, environmental support, and the creation of wildlife habitats. A green roof solution may not be suitable for all building. Proper planning, detailed design and professional installation are essential.