May 21, 2019
The studies and figures on the ecological and economic benefits of green roofs and “vibrant” walls are rising rapidly.
The green roof reduces the air conditioning needs of a building in the summer months, depending on its individual characteristics, from 50 to 90%. The temperature on the roof of a building with a green roof does not exceed 25-30 degrees Celsius, even in the summer, while the equivalent of a conventional building can reach 75 degrees. In London and Shanghai, only in the year 2008, 100,000m² of green roofs were planted. In France, every year 1,000,000 m² are planted annually, while in Germany 11,000,000! The numbers clearly show the enormous investments made now in green growth and the seriousness with which citizens face global warming.
The economic benefits of homeostasis
As a planted house, or planted roof, green roof, roof and greenroof, all or part of the surface of a roof, a roof, a balcony, etc., is set up, where interventions are made for planting vegetation. The planted roof consists of many layers of specialized materials, which are basically the base of the installation, the drainage network, the substrate and the vegetation. Three types of planted roof are distinguished, the extensively the intensive and the semi-oriental.
The type of vegetation to be selected for each rooftop depends on the depth of the substrate that can withstand the building, the way the roof / roof is constructed, the environmental conditions, and the construction cost limit. Also, the desired functional and energy effect, as well as the aesthetic perception of the individual concerned. Indicatively, different types of flowers, herbs, herbs, Mediterranean soil cover and lawns can be planted. The ecological benefits of homeostasis
Green “vibrant” walls
If the idea of a green wall looks new to you, remember the Babylonian Hanging Gardens, which have remained in history as a technological breakthrough and aesthetic miracle. The idea of hanging gardens was also applied by other peoples, such as the Vikings, while roofs with the pressed earth used in the traditional island buildings in the Mediterranean region serve the same logic. In modern times, the French botanist and researcher Patrick Blanc is considered to be the “inventor” of the green “living” wall. His collaborations with a large number of private and public institutions such as museums, schools, airports, public buildings, shopping centers, etc., as well as its extensive and highly aesthetic applications, make the green walls a great achievement in the field of building construction and ecological decoration. The green walls present the aforementioned advantages of the planted villas and additionally provide optical isolation, they can cost less and do not require much space, maintenance and grooming. By installing a green roof, the roof temperature is reduced to 45-50 degrees and the increase in the commercial value of the property.
There are two types of applications: green facades and “vibrant” walls. Green facades consist mainly of climbing plants, which grow directly on the building or on special constructions, an image that is often found in Greece. “Vibrant” walls are a structure made up of cell lines in which the plants are placed and suitable for indoor and outdoor use. The number of hives depends on their size and the surface they cover, while they change when they are worn or when they have reached their maximum life. Typically, cells with dimensions 1m long, 0.5m wide, 0.12m deep are used. and weighing 88kg / m², which are based on a special frame and in them are placed rows of different plants.
Did you know that … Just 1.5 square meters of planted roof produces enough oxygen to meet the annual needs of an adult in clean air?
Plant walls are so shaped as to maintain the balance between water and air in the substrate, which makes the conditions for plant growth ideal and allows them to grow both horizontally and vertically, thus covering the whole surface of the cells . Ex? the weight of the plants depends on their species and age, but when plants grow completely they should not exceed 12kg per m² for plants such as grass and 24kg per m² for the rest. The plant species that thrive on the plant walls are too many, but mainly they are ground cover because of their rapid spread over the surfaces. They are selected after a special study and range from grass, to low growth shrubs and wild flowering plants. As they change, either their foliage color or their flowers over time, they are a naturally changing canvas of natural aesthetics in the urban environment.
In Greece, the economic crisis, besides our ecological consciousness in the installation of green terraces and walls, leads us to our pocket. All the individual benefits are financially attributable to the particular characteristics of the application and the building, e.g. the energy losses of the building, the percentage of the area planted, the local climatic conditions, etc. Apart from financial, the ecological benefits are just as remarkable.