Pitched roof systems sometimes merge into vertical facade vegetative techniques.
Extensive roof garden.
Extensive roofs are typically lightweight and can be installed over a variety of structures including metal roof decks.
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.
The intensive green roof uses planting mediums that have greater depth than the extensive green roof.
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.
Fytogreen designs roof gardens specifically to suit the site conditions inclusive of weight and set down limitations.
Varied building systems have been developed to support vegetative covers on steeply pitched roofs.
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.
It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.
The extensive green roof.
With a thinner vegetation support layer green roofs are lightweight compared to roof gardens.
Another term for these green roofs is rooftop garden.
Extensive green roofs sedum roof systems.
To install extensive vegetative roof covers on pitches steeper than 2 5 12 12 degrees supplemental measures will be required to prevent sliding instability.
Typically they have thin layers of substrate the growing medium to keep depth and weight to a minimum.
Greening the built environment fytogreen australia s lightweight extensive roof garden system.
A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.
An extensive garden roof assembly can be applied to flat roofs and sloping roofs with a pitch of up to 12 12 or 45 provided the appropriate measures are taken to cope with the shear forces and soil retention.
Saturated weight guide extensive roof garden 140mm to 200mm 20mm scoria or recycled stone mulch nb.
It is typically not designed for public access or recreational use and access is strictly for periodic maintenance.
Given those advantages only the extensive green roof will be discussed here.
Extensive and semi extensive roof gardens have a thin growing medium 200mm deep planted with predominantly native vegetation.
Outside melbourne recycled concrete or clinker ash are used to replace scoria the weight is similar.
A green roof involves the extensive greening of rooftop surfaces.
