Extensive Green Roof Construction Details

A general characterization of the two types of green roofing systems follows.

Extensive green roof construction details. Generally there are two types of green roof systems. Extensive green roofing systems consist of lightweight naturalistic planting that provides extensive plant cover with minimal maintenance and a wide range of benefits including. Semi extensive green roof. This is especially true of intensive green roofs which can have soil that is two feet deep or more.

One important item to design for is an increased structural load. Xf301 sedum blanket extensive green roof system when to specify. Green roof systems susan weiler katrin scholz barth 2009 john wiley and sons isbn. A semi extensive green roof sits somewhere in between the two main options and is based on the extensive roof principles.

It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer. 978 0 471 67495 5 planting green roofs and living walls nigel dunnett noël kingsbury 2004 timber press isbn. 978 0881926408 the green roof manual edmund snodgrass linda mcintyre 2010 timber press isbn. The system is suitable for both new build construction and retrofit refurbishment projects.

With more depth of growing substrate 100 200 mm it can support a greater diversity of plants but not shrubs and trees. This is the lightest weight all in one system available. For both of these we need to follow specific green roof construction and maintenance procedures. Little modification of the roof environment ensuring suitability for new or refurbishment applications.