With the development of artificial turf, green roofs country has gradually achieved some success. Relative to natural grass, artificial turf has many advantages over natural grass can not be achieved, because of this artificial turf instead of natural grass gradually into people's lives, has become a green roof is a good helper.
With the speed of urbanization, the urban scale of China's rapidly expanding. An increase in the urban population made the city increasingly serious heat island effect, urban population centers are often higher than the temperature outside village 3 ℃ -5 ℃. Meanwhile, the formation of haze vehicle emissions has become an important factor affecting the quality of the urban environment. To this end, authorities stepped up efforts to traditional vegetation cover urban gardens, municipal parks and sidewalk trees planted so as to optimize the urban environment. Our city is so densely populated, high cost of land in some areas it is on the ground to implement the higher cost of green, so that the three-dimensional urban greening can develop, such as green roofs help cool the city and reduce air pollution.
In the city to promote the implementation of green roofs have four characteristics, one can purify the air, optimizing the ecological environment, the roof garden of plants and ground plants that have improved the local microclimate, regulate temperature and humidity, absorb carbon dioxide and release oxygen, absorption of pollution things, clean air, dust absorption lag effect; the second is to reduce the urban heat island effect, sound blocking light, can make the indoor temperature drops 4 ℃ -6 ℃, saving electricity; the third is at the top of the protection of the building, extended roof waterproofing 3-5 times the life of the material; d be able to retention of atmospheric dust, 1000 m2 green roof on the retention of about 160-220 kg of dust, reducing ambient air dust content of about 25%.