Greening the built environment fytogreen australia s lightweight extensive roof garden system.
Extensive roof garden.
All fytogreens roof gardens are irrigated and designed for low maintenance.
Extensive roofs are typically lightweight and can be installed over a variety of structures including metal roof decks.
Pitched roof systems sometimes merge into vertical facade vegetative techniques.
Given those advantages only the extensive green roof will be discussed here.
Saturated weight guide extensive roof garden 140mm to 200mm 20mm scoria or recycled stone mulch nb.
Varied building systems have been developed to support vegetative covers on steeply pitched roofs.
It is typically not designed for public access or recreational use and access is strictly for periodic maintenance.
A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.
With a thinner vegetation support layer green roofs are lightweight compared to roof gardens.
Typically they have thin layers of substrate the growing medium to keep depth and weight to a minimum.
The extensive green roof.
Outside melbourne recycled concrete or clinker ash are used to replace scoria the weight is similar.
Fytogreen designs roof gardens specifically to suit the site conditions inclusive of weight and set down limitations.
Extensive and semi extensive roof gardens have a thin growing medium 200mm deep planted with predominantly native vegetation.
It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.
Extensive green roofs sedum roof systems.
An extensive garden roof assembly can be applied to flat roofs and sloping roofs with a pitch of up to 12 12 45 provided the appropriate measures are taken to cope with the shear forces and soil retention.
This deeper soil allows intensive roofs to accommodate large plants and dramatic plant groupings.
Extensive green roofs are designed to be low maintenance lightweight systems with no general access.
The extensive type of green roof by contrast have a soil depth of 50 150mm only support very drought tolerant plants no irrigation are too harsh an environment for most common weeds and so require very little maintenance.
A green roof involves the extensive greening of rooftop surfaces.
Extensive roofs are typically lightweight and can be installed over a variety of structures including metal roof decks.
Typically these roofs will have more soil and some small shrubs as well as the low growing wildflowers and sedums found on an extensive roof.
To install extensive vegetative roof covers on pitches steeper than 2 5 12 12 degrees supplemental measures will be required to prevent sliding instability.
