Energetic effects of green roofs on the urban climate near to the ground and to the building surfaces

Koehler, M.K., 2004, Energetic effects of green roofs on the urban climate near to the ground and to the building surfaces, International Green roof Association

  • Author : Koehler, M.K.
  • Year : 2004
  • Pages : 72-79
  • Publisher : International Green roof Association
  • Abstract in English : Green roofs are relevant to cool down inner city surfaces. This effect shall be explained by the measurements of the storage capacity, the run-off, evaporation, interception rates and climate parameters. The data set was taken in the vegetation period of 2004. The green roof values of the research area in Neubrandenburg (Mecklenburg-Vorpommern, Germany) are compared to a typical gravel-covered roof on the same building and older datasets from a research roof at the UFA-factory in Berlin. The amount of the cooling efficiency of a green roof can be calculated as an energetic process steered by the quantity of rain retained in the growing medium. If the fact of cooling surfaces shall be a relevant factor in green roof planting, it is necessary to select a growing medium with a high storage capacity.
  • Comments/Notes : KEYWORDS: green roofs, climate, urban ecology, substrate, water retention, temperature. SEE ALSO: IGRA, 2004. International Green Roof Congress. Conference Transcript. International Green roof Association, Berlin. 176 p.