Nowadays, the greening of the roof is a kind of greenery that is both effective and effective. It has been strongly promoted and promoted as an important part of the urban greening work. Roof greening can effectively reduce the temperature of the roof, protect the building layer, extend its service life, and can also adsorb dust in the air, which can also play a role in noise absorption and noise reduction. However, conventional roof greening has not been able to do large-scale promotion.
The difficulties in roof greening are as follows:
First, there are certain requirements for the load-bearing of the roof. Planting flowers on the roof will inevitably lay a layer of soil for its growth. If other landscapes are set, the weight will be greater. However, most roofs do not take into account the load required for roof greening at the beginning of the construction, and increasing the load bearing means that the cost increases, and many developers are not willing to pay such expenses.
The second is that it is possible to damage the waterproof layer of the roof. Generally, the daily irrigation and fertilization necessary for the growth of flowers and plants, if the roof is infiltrated with water for a long time, and there are some corrosive substances in the fertilizer, in the long run, the waterproof layer is likely to be damaged. At the same time, because the waterproof layer is covered under the soil of flowers, if it forms a leak, it is difficult to repair.
The third is higher costs. Not only does it take a lot of manpower and material resources to plant in the early stage, but it also requires special personnel to carry out regular maintenance at a later stage, and the cost is too high.
Feasibility of roof greening with artificial turf
Artificial turf can be used alone, or it can be decorated with a part of the plant. The amount of soil needed can be reduced and the load can be reduced. Since artificial turf does not require watering, fertilizing, etc., it will not cause damage to the waterproof layer after laying. On the contrary, it can also play a protective role.
Artificial turf has now developed the functions of heat insulation and noise reduction, which makes the use of artificial turf as a roof greening subject not only to achieve beautification and greening, but also to achieve a certain degree of functionality.
Artificial turf is low in cost and easy to install. It does not need to consider the problems of diseases and insect pests and post-maintenance. It can be evergreen without the need of management. Its appearance is very close to that of natural grass, and natural rainwater can be cleaned. And the long service life, compared to real grass, the cost is much higher. Once it is popularized and popularized, the roof greening rate will surely increase substantially.
However, it should be noted that turf roof greening must be within the load-bearing capacity of the roof of the building. If the load does not meet the standards, then it violates the principles of architecture; the roof drainage and wind direction must be taken into account. Make sure that you have a drain outlet. You cannot ignore the problem of roof outlets due to drainage of artificial turf. Consider the wind direction so that the green roof of the roof will not be blown off by the wind.