The Construction Of Roof Greening

In recent years, with the rapid development of the city, and the contradictions of urban land, it has become the topic that cities have potential for sustainable development. People are getting more focused on environment construction, and roof greening is becoming the effective methods to green the urban. Roof greening not only provide the functions like gardens, but also is the good way to contact the garden with construction. This article will invite valuable opinions and get more people to understand the idea of the roof greening.To begin, the article will review the background of roof greening research and affirmed the construction of roof greening practical significance. Then introduce the development of roof greening in various countries from its origin and development with respect to their native and international historical perspective. Secondly, the article will focus on the functional benefit, categories and technical issues of roof greening. With the functional benefits, the article will emphasize the value of the roof greening through analyzing its value in architecture, the importance in the urban environment, the recreation of the garden, and the social economy. Regarding the classification, roof greening is classified by the relationship between architectural spaces and the greening. Regarding the constructions of roof greening, the article will discuss the material formation of their construction layers. Then, the article will discus the impact the could be made to roof greening including lighter layer design, water system design, and scientific management. The conclusion will summarize the ideas that developed throughout the article, explore the trend of the roof greening from its technical functions and contributions to scenery, and finally clarify the great potential of the roof greening in contributing to sustainable city development.