Roof greening is the same as ground greening, and it is another force in the urban greening landscape project. The main functions of roof greening are: one is to increase the greening rate and beautify the environment; the other is to absorb heat and reduce temperature, dust and noise, energy saving and emission reduction; the third is to relieve the rainwater roof overflow and reduce the drainage pressure;
Conventional roof greening is roughly divided into three types:
One is to select suitable types of grasses for large-area planting according to the actual situation of the roof. The advantages are light weight, low load-bearing requirements, no restrictions on the size of the roof area, and later maintenance is relatively simple and low cost;
The second type has further requirements in landscape. Various tall or short shrubs can be selected to form a patchwork landscape, but there will be certain requirements for the load bearing of the roof, and some later maintenance and irrigation matters will be added. The cost increase;
The third type is more abundant in the choice of plants. Some relatively tall trees can be planted, and some buildings, water bodies and landscape sketches can be added. The load-bearing requirements on the roof are very high, and the maintenance work in the later stage is more complicated and costly. .
However, since most of the domestic roofs have not been considered for the implementation of roof greening at the beginning of the design, considering the roof load bearing problem, although planting lawns is indeed inadequate compared with the latter two in terms of landscape effects and ecological benefits, but It has strong maneuverability, relatively simple construction and post-maintenance, low cost, and is more easily accepted by people.
Compared with natural lawns, lawn-like roof greening is slightly inadequate in some ecological functions, but its advantages are more prominent. The artificial grass is bright in color and rich in color, which is enough to be fake and unreliable in appearance, regardless of natural glory and dryness, and can have spring grass green throughout the year; it can be protected from ultraviolet rays, corrosion resistance, mildew, environmental protection, pollution-free, and fade; daily rain can be Washing is almost maintenance-free; economical and practical, it can be used for 6-8 years under normal conditions.
In addition to beautifying the environment, there are roof greening conditions that meet the requirements of some sports functions. Sports artificial turf can also be competent, and even better in terms of user experience. Wear-resistant and comfortable and soft to touch, it can reduce the noise of the site, and it can still maintain stable performance under frequent use.
Nowadays, there are many tall buildings in the city. Although the concept of urban greening is gradually paid attention to, the green area or potential green area is still being squeezed. At the same time, a large number of roofs are still facing the sky. Artificial turf has the advantages of low cost, convenient maintenance, excellent effect and long service life, which is a relatively popular roof greening method.
