Vegetation Volume Fraction Green Roof Extensive

24 control name lid type layer parameter value gr your initial green roof surface berm height 3 vegetation volume fraction 0 2 surface roughness 0 1 surface slope 1 0 soil thickness 6 porosity 0 5 field capacity 0 2 wilting point 0 1 conductivity 0 5 conductivity slope 10 suction head 3 5 drainage mat thickness 1 void fraction 0 5 roughness 0.

Vegetation volume fraction green roof extensive.

For intensive green roof. Plants for an extensive green roof here is a list of 10 of the best plants in various categories that you can use. 15 to 50 per square foot. Because extensive roofs are lighter than other green roofs they require a specific type of vegetation.

The bauder green roof vegetation installation guide and the bauder extensive green roof maintenance guide both of which can be found at www bauder co uk. The plants chosen must be appropriate for the roof type extensive intensive or semi intensive. Bauder sedum blanket xf300 indicative plant list species sedum acre sedum album bella d inverno sedum album coral carpet sedum ewersie sedum kamtschaticum ellacombianum. Plants for green roofs.

Climate clearly plays a major role in choosing the best plants for a green roof. Green roofs are suggested as one of the potential solutions of adapting cities to climate change and as a means to cool urban areas rosenzweig et al 2009 rosenzweig et al. An intensive green roof is a deeper typically greater than six inches heavier system designed to sustain complex landscapes. Control name lid type layer parameter value gr your initial green roof surface berm height 3 vegetation volume fraction 0 2 surface roughness 0 1 surface slope 1 0 soil thickness 6 porosity 0 5 field capacity 0 2 wilting point 0 1 conductivity 0 5 conductivity slope 10 suction head 3 5 drainage mat thickness 1 void fraction 0 5 roughness 0.

In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. For a conventional roof. Along with the makeup and depth of the growing medium selecting the right plants is crucial to the success of a green roof. An extensive green roof is a thin usually less than six inches lightweight system that is typically predominantly planted with succulents drought tolerant ground covering plants and grass.

Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq. 8 to 20 per square foot.