There are two different types of green roofs.
Green roof section dimensions.
Intensive green roofs roof gardens and extensive green roofs.
A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof.
Green roof roof terrace cad drawings.
Moisture retained by media that cannot be removed aka wilt point 12 18 typ.
G 1 extensive green roofs have a much shallower growing media layer that typically ranges from 3 to 6 inches thick.
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For further information about the benefits and construction of green roofs see our green roofs section.
They fall into three main categories extensive intensive and semi intensive.
Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although.
Green roofs are also known as vegetative or eco roofs.
Green roofs can help reduce energy costs for a building by acting as another layer of insulation between the inside and outside of the roof.
Intensive green roofs have a higher weight and require a minimum soil thickness of at least 30 cm compared to the 5 12 cm of the latter.
G 2 intensive green roofs have a growing media layer that ranges from 6 to 48 inches thick.
We have vegetative roof details in pdf dwg autocad and autodesk revit rvt 2d and rfa 3d formats.
Green roof components growing media water holding capacity field capacity maximum water capacity astm test.
What is a green roof.
Green roofs are typically not designed to provide stormwater detention of larger storms e g 2.
This is most noticeable in intensive green roofs since there is a thicker and more consistent layer of soil which provides a higher insulating value.
Although there are no precise definitions of them an extensive green roof has a shallow growing medium usually less than six inches with a modest roof load limited plant diversity minimal.