Germany Green Roof Statistics

Green roofs like this one in berlin germany support specialized hearty vegetation and provide environmental services such as stormwater retention urban heat island effect amelioration habitat for urban wildlife and energy savings resulting from better insulation.

Germany green roof statistics. An extensive green roof can reduce sound from outside by 40 decibels while an intensive green roof can reduce sound by 46 50 decibels peck et al. 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 it may also include additional layers such as a root barrier and drainage and irrigation systems. Germany is the country with the most green roofs in the world and it is the country with the most advanced knowledge in modern green roof technology. Out of 1 488 german urban areas with more than 10 000 people 79 have financial incentives for reducing storm water run off according to a 2016 survey by germany s association of green building companies.

Green roofs have excellent noise attenuation especially for low frequency sounds. Today in europe about 10 000 000m of new green roofs are being constructed each year. The temperature on the green roof on the hottest summer days can be as much as 59 degrees cooler than conventional roofs on neighboring buildings. Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although.

Six percent of them offer subsidies to install green roofs and 51 have drawn up green roof building plans an 11 rise on 2014. Green roofs can increase a building s marketability. For example the installation of the green roof on flat roofs of area size more than 330 square feet is mandated by switzerland and germany. Were chicago new york city toronto philadelphia and cincinnati.

In the 1970s when the oil crisis was at its height germany was one of the first countries to investigate the use of green roofs for energy conservation and by the middle of the noughties there were an estimated 13 million. Sod roofs are frequently found on traditional farmhouses and farm buildings in iceland. Installed the most green roofs in north america this past year with 1 326 872 square feet. By the early 1900s germany was building flat green roofs in urban areas and continued to do so throughout the century.

Green roof green roof performance data. The green roof bylaws have been supported by scientific proofs leading to their growth. Favorable policies and subsidiaries by the government are expected to drive the market further. According to their 2015 report there was a green roof stock of 86 million square metres in germany in 2014 and about another 8 million square metres were added every year.

The european federation of green roof associations has collected data about green roofs within europe.