Green Roofs With Vegetation

Vegetative roofs also known as green roofs are thin layers of living vegetation installed on top of conventional flat or sloping roofs.

Green roofs with vegetation. They fall into three main categories extensive intensive and semi intensive. Vegetation blankets create instant green roofs as soon as they are rolled out. Planting is best completed in autumn and winter to assist plant establishment before summer. Where a standard garden is horizontal a green wall has been flipped on its side.

Plants for extensive green roofs plants for extensive green roofs should have low growth height rapid growth spreading and fibrous roots that have high drought tolerance. Some green roofs are constructed specifically to support sports turf. A well designed green roof system enables the sustainability and energy performance of a building to be increased in a number of ways. 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.

Since their development in the late 1970s in germany extensive green roofs egr have become increasingly popular as mitigation tools for urban environmental issues around the world. We have chosen to use the word vegetative rather than the word green in this guide because a non vegetative roof could be considered to be environmentally green without being vegetative. It may also include additional layers such as a root barrier and drainage and irrigation systems. The science is in how you put a garden on its side make it light enough and choose resilient plants that won t outgrow basic maintenance.

These require irrigation and a substrate depth of at least 200 mm. Vegetables are the other main group of annual plants used on green roofs. A green wall or roof is essentially a panel of vegetation. Egrs are planted with.

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane. Vegetation composition of old extensive green roofs from 1980s germany christine e thuring and nigel dunnett abstract introduction. Green roofs are also known as vegetative or eco roofs. Green roofs planted with plug plants or cuttings take an average of 2 to 3 years to achieve the same result as vegetation blankets.

Vegetation a range of planting stock can be used for green roofs including seed cuttings seedlings tubestock and larger containerised plants. See here for information on species selection. Careful plant selection and maintenance is needed to ensure annuals do not become weeds on a green roof.