978 0881926408 the green roof manual edmund snodgrass linda mcintyre 2010 timber press isbn.
Extensive green roof construction details.
This is the lightest weight all in one system available.
Generally there are two types of green roof systems.
For both of these we need to follow specific green roof construction and maintenance procedures.
This is especially true of intensive green roofs which can have soil that is two feet deep or more.
There are a number of things to consider when designing for a green roof.
It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.
Intensive vs extensive green roof.
A semi extensive green roof sits somewhere in between the two main options and is based on the extensive roof principles.
Green roof systems susan weiler katrin scholz barth 2009 john wiley and sons isbn.
A general characterization of the two types of green roofing systems follows.
Xf301 sedum blanket extensive green roof system when to specify.
Semi extensive green roof.
With more depth of growing substrate 100 200 mm it can support a greater diversity of plants but not shrubs and trees.
Little modification of the roof environment ensuring suitability for new or refurbishment applications.
978 0 471 67495 5 planting green roofs and living walls nigel dunnett noël kingsbury 2004 timber press isbn.
They are differentiated on the basis of plant selection growing medium type and overall cost.