A green roof whether intensive or extensive will have a basic build up comprising three layers.
Green roof journal articles.
Extensive green roof breuning 2015 benefits of green roof.
There are two types of green roofs.
A search of a number of different keyword for the green roof that includes green roof technology green roof history green roof components green roof benefits green roof policies a new combination of green roof for multiple benefits using open access google scholar different journal and conferences were used to find the useful information.
Intensive green roof are found in green roof it s considered to be semi intensive green roof ampim 2010.
Green roof application and performance.
Green roofs can be traced back as far as the gardens of babylon and the roman empire i e.
Vegetation is the key elements in installing.
The roof structure is an important consideration in green roof design.
The effects of climate change like increase of sea level coastal erosion or the rise of urban temperatures during summer urged engineers and scientists to create tools that might weaken them.
Green roof technology was quickly embraced because of its broad ranging environmental benefits and interdisciplinary research led to technical guidelines the first volume of which was published in 1982 by the landscape research development and construction society fll 2002.
Green roof is known to be used widely in our world today because of its lot of benefits to our environment and some of them can be illustrated in the picture below.
Extensive green roofs have media depths ranging from 5 15 cm whereas intensive green roofs have media depths greater than 15 cm capable of sustaining vegetation with deeper root structures and that is less drought tolerant luckett 2009.
The second study tested the influence of roof slope 2 and 6 5 and green roof media depth 2 5 4 0 and 6 0 cm on stormwater retention.
These publications show that this technology is fit for all climate zones and is possible in nearly all types of buildings.
Green roofs are one prominent key element in the list of green infrastructure solutions.
Nasa and green roof research using new technologies to update an old concept.
For all combined rain events platforms at 2 slope with a 4 cm media depth had the greatest mean retention 87 although the difference from the other treatments was minimal.
The drainage layer a filter layer and the vegetation layer.
This article provides an overview mainly from two aspects the vegetation on the green roofs and its benefits towards the surrounding environments.
Knowledge about green roofs has increased significantly in the last 30 years.
