This article is a sample of green roofs mapping analysis, a method that provides data, which can be transferred into information about benefits and disadvantages of green roofs. E.g. how do they improve water retention? How does it affect local water management? How do green roofs reduce real estates energy demand? How many tones of air pollution do they reduce? What are their other benefits in specific to administrative area? What is the potential to build green roofs and benefits they might bring?
Green Roofs (GR) are becoming increasingly popular in Portugal due to its many benefits and to the increase of the environmental consciousness of the population and politicians, as well as the work of different academic groups and green roof companies.
Green roofs are enjoying a growing popularity both with the public and with Czech institutions. Recent European discussions of urban green infrastructure as a means of adaptation to climate change have also found fertile ground in the Czech Republic. Building upon previous experience with a national subsidy program, as of 2017, green roofs have been added to a nation-wide subsidy program. The quality of Czech green roofs is being assessed by the recently published Czech green roof standards.