Roof- and façade greening have many positive effects on the environment, the climate, nature and buildings. Green roofs make a contribution to increased energy efficiency and offer indoor protection from summer heat by cooling the spaces under the roof, and work in this manner as natural air conditioners. »Greened« roofs and facades can also reduce urban ecological problems and some effects of climate change such as heavy rainfall and periods of extreme heat. Implementation over large areas can reduce heat islands within cities and lower air temperatures in urban districts.

In order to further encourage the spread of green roofs in Germany, and to support competent city authorities in their roof-greening policies, the Deutscher Dachgärtner Verband e. V. (DDV) has issued, in cooperation with partners, a »Guideline for Green Roof Policies«.

In a current cooperative project with partner cities and the Deutsches Zentrum für Luft- und Raumfahrt (DLR) the DDV is developing a methodology with which already existing, and potential, planted areas on roofs can be identified and inventoried from a »birdseye view«. High-definition satellite- and aerial photos provide information on the size of the spaces, building height and roof inclination. This data can make a valuable contribution to the spread of green roofing and the related work by community, statewide, and national competent- and conservation authorities, and by planning offices and landscape architects.

Project operation
Deutscher Dachgärtner Verband e. V.
72610 Nürtigen
Telefon:  07022|301378
ansel@dachgaertnerverband.de
www.dachgaertnerverband.de

28269/30299