Turf plug or seed.
Semi intensive green roof layers.
Three types of green roofs exist.
The green roof supports over twenty eight different plant species ranging from sedums herbaceous plants tall grasses and small shrubs creating a rich and bio diverse community for local fauna.
The semi intensive green roof at hamerschlag hall features a 2 5 inch drainage layer with a 2 5 inch extensive growing medium mix.
There are three basic types of green roof.
Green roofs are also known as vegetative or eco roofs.
Nd 4 1h drainage system drainage system for intensive green roofs 7.
Laying course or leveling layer 6.
Their main function is to incorporate a thin layer of air within the profile of a green roof system while also providing lateral water movement.
Consists of a thick layer of soil 50 200mm in which a variety of grasses herbs flowers and shrubs can grow.
Semi intensive roofs are not designed to be heavily trafficked and can be installed on flat to shallow pitched roofs.
Comparison of the various green roofs an extensive green roof is characterised by its low weight a thin layer of growing medium green substrate a mix of plants adapted to conditions on the roof minimum maintenance and low installation costs.
Nd wsm 50 water reservoir panels 4.
These products work in conjunction with the primary drainage component within the green roof system.
Nd dgs i substrate intensive 3.
Nd tsf 100 slip and protection sheet 8.
Intensive thick extensive thin and semi extensive somewhere in between.
Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used.
In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs.
Common uses of the grs air layers are.
Planting and waterproofing typically this will be a drainage layer and 100 170mm of semi intensive substrate and the plant material that has been chosen i e.
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.
Semi intensive green roof heather with lavender the ideal system build up for blooming perennials and aromatic shrubs heather with lavender is a simple intensive green roof system and allows for the inclusion of various perennials and aromatic shrubs in the plant selection.
They fall into three main categories extensive intensive and semi intensive.
Standard composition nophadrain intensive green roof system.
