A green roof or living roof is a roof of a building that is partially or completely covered withvegetation 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. (The word "green" refers to environmentalism and not the color green, as with green roof tiles or roof shingles).
Green Roofs have a centuries-long history.
Modern green roofs, which are made of a system of manufactured layers deliberately placed over roofs to support growing medium and vegetation, are a relatively new phenomenon. However, green roofs or sod roofs in Northern Scandinavia have been around for centuries. The modern trend started when green roofs were developed in Germany in the 1960s, and has since spread to many countries. Today, it is estimated that about 10% of all German roofs have been “greened”. Green roofs are also becoming increasingly popular in the United States, although they are not as common as in Europe.
Some benefits of a green roof are:
-helps slow rain water flooding
Some benefits of a green roof are:
-helps slow rain water flooding
-helps clean the rain water
-encourages bio-diversity in wildlife and especially bees
-helps clean the air we breathe
-encourages bio-diversity in wildlife and especially bees
-helps clean the air we breathe
-doubles the life of an average roof
-less trash/materials needed to repair or replace the roof
-looks great and adds more usable space on a property
-food can be grown
-absorbs less heat from the sun and helps cool cities
-helps to insulate to keep heating/cooling costs low
-if air conditioners are on the roof, the air they have to cool starts at a lower temp and takes less energy to reach 70 degrees
Bellow are some great examples of what Green Roofs can look like:
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