Know what the green roof?

Know what the green roof?

A green roof, green roof or roof garden is the roof of a building that is partially or completely covered with vegetation, whether on land or in a suitable culture medium. It does not address green roofs, such as the color tiles to roof nor garden in pots. It refers instead to technologies used on ceilings to improve habitat or conserve energy, ie technologies that fulfill an ecological function.




The term green roof is also used to indicate other green technologies such as photovoltaic solar panels or photovoltaic nodules. Other names for living green roofs are roofs and green roofs.



Green roofs can be used to:

* Growing fruits, vegetables and flowers
* Improving the climate of the building
* Extend roof life
* Reduce the risk of flooding
* Filter air pollution and CO2, see also crop Paredes
* To act as an acoustic barrier, soil blocks low-frequency sounds and plants high frequencies.
* Filter pollutants and heavy metals in rainwater
* Protecting biodiversity in urban areas




A green roof is a key component of an autonomous building.
A 2005 study by Brad Bass of the University of Toronto showed that green roofs can also reduce heat loss and reduce energy consumption in winter.
In a recent study on the impact of green structures in the area of Manchester researchers found that green roofs help to lower temperatures especially in urban areas, "adding green roofs to all structures can have dramatic effects on surface temperature , keeping the temperature below the average of the years 1961-1990 ... Green roofs have the greatest impact ... where the proportion of buildings is high and the rate of evaporation is low. So the biggest difference occurs at the center of the stocks.



Green roofs can be classified as intensive, semi-intensive "or extensive, depending on the depth of the culture medium and the degree of maintenance required. The traditional roof gardens require a considerable thickness of soil to grow large plants and traditional lawn, they are considered "intensive" because they require a lot of work, irrigation, fertilizer and other care. Intensive roofs are of a park with easy access and can include anything from spices to the kitchen to shrubs and even small trees. The roofs "extensive", however are designed to require minimal attention, perhaps once a year weeding or application of slow-acting fertilizer to stimulate growth. In general, extensive roofs are visited only for maintenance. They can grow in a very thin layer of soil, most use a special formulation of compost or even "rock wool" directly above a waterproof membrane. This may provide a substrate for mosses and species such as Sedum.