Green roofs for our cities

CIBSE, Green roof

‘Guidelines for the design and application of green roof systems’ has been published by CIBSE and can be ordered through the knowledge portal (see below). The author is Dr Sam C. M. Huil, who describes in his foreword how many cities in the world are facing the problems of urban heat islands and a lack of green space.

Green-roof systems, living vegetation installed on roofs, have been recognised as performing a vital role in helping cities adapt to the effects of climate change by reducing the need for artificial cooling in hot weather. They also attenuate or capture rainwater runoff and provide a range of habitats for urban wildlife.

However, the market for green roofs is still developing, and more information and understanding on their technical design, effectiveness and actual benefits is needed.

The guidelines from CIBSE cover scope, definitions, planning requirements, design considerations, construction methods, maintenance issues and project management for green-roof systems.

In the UK, green roof systems have been installed on homes, schools and office buildings. Many of the scenarios described in the guidelines are based on experiences in both Hong Kong and China, and demonstrate how green roof systems have become embraced internationally as a new option for building services engineers to consider, particularly in city environments.

Related links:
Related articles:



modbs tv logo

Grenfell is the building industry's Piper Alpha says CIBSE

The recent passage of the Building Safety Act is a welcome recognition of the fact that making safe buildings is a highly skilled operation says the Chartered Institution of Building Services Engineers, endorsing the need for more effective regulation and a profound change in culture.

Underlying project-starts uptick indicates gradual recovery, Glenigan data suggests

  • 13% rise in detailed planning approvals against the preceding three months
  • 18% decline in main contract awards against the previous year
  • 9% increase in underlying starts during the three months to May

Glenigan has released the June 2022 edition of its Construction Review.