Green roofs

Green roofs are built up as a series of layers, with each performing a specific function. The most typical build-up is shown below and includes:

the roof structure (roof deck)
waterproofing layer
protection layers (including the option of a protection mat and/or root barrier layer)
drainage layer
filter sheet
growing substrate
vegetation

Specialists in green roof design and installation can provide advice on the most suitable system and the most appropriate construction approach.

View these pages for more on construction and installation of green roofs: