Topic 1

Recall that a green roof is a specially engineered rooftop that supports vegetation and plant life to the benefit of the environment.

Among others, it can reduce air pollution, mitigate against urban heat, act as filter for rainwater and reduce energy demands…

What are however the building elements or components of green roofs?

There are several components that make up a green roof system (Dinsdale, Pearen & Wilson 2006):

  • Waterproofing of the roof deck

  • Root barrier

  • Drainage Membrane

  • Filter layer/geotextile filter

  • Green Roof Substrate/growing medium

  • Vegetation