In ancient times when the number of humans on earth was not as much as now, and the trend of urbanization was not spreading fast, most of the land was green. There were forests, fields, pastures, and trees all around. Extensive gardens were full of trees and green plants. But as the population increased over the years, more humans needed more land to build houses because of which a considerable number of forests and green valleys have been converted into urban areas with homes, buildings, and roads.
Deforestation is a major global issue in the current era as trees are the source of purifying the environment. Human activities lead to emission of toxic gases, pollutants, and hazardous substances green lands and green plants absorb these pollutants and help keep the environment clean. But in the current area, the enormous population is destroying the environment.
We pollute the environment, and we also cut down the trees so that there is no way left for cleaning it. Green plants are a source of oxygen, more humans need more oxygen to survive, but instead of protecting the plants for our good, we are always destroying them to build shelters. As we know that shelter is also a basic human need; thus, what can we do to protect and spread the green land. A simple solution is to have a green roof. It is just like shifting your garden from the ground to the top of the house. In this way, you can have shelter without destroying the green land, and it also has a large number of benefits you and your house. However, the procedure is a little complex because you don't want your roof to seep water or roots of plants penetrating the ceiling which are some of the main reasons due to which people question having a green roof.
It is not something to worry about; you can consult a structural engineer for this purpose, and he can guide you the whole method through which your roof remains protected, and your garden flourishes both at the same time. To protect the roof, first of all, a waterproof layer is placed on the roof, which does not let the water seep into the ceiling and insulates and protects it. Secondly, there is a layer for drainage of water, and to prevent the roots from penetrating the roof after ensuring complete protection of your house, then comes the soil. Usually, drought-tolerant plants are chosen so that your roof remains evergreen even when there is no rain. All of this might sound costly, but this is all a one-time cost, and it benefits you in many ways, also saving
your money in the future. These roofs keep the
temperature of your house low during summers and lower your utility bills. In
this way, you will eventually get back what you spent on it. There are also
other benefits like increasing the life of the roof, keeping the air fresh,
fire resistance, and a decrease in outside noise.
Infographic by: http://evolvedesignbuild.net/