Big changes do not happen accidentally and nobody wins the Olympics by chance, in the same way Copenhagen, the largest city in Denmark, has not become a green city due to fate. Recognized for their strong inclination towards transport on two wheels, today they surprise us again with a law that requires owners of new roofs to have some type of vegetation on them.
A roof, green roof or garden roof is the roof of a building that is partially or totally covered with vegetation, either on the ground or in an appropriate growing medium. It does not refer to green roofs such as green tiles, nor does it refer to roofs with potted gardens. Instead, it refers to technologies used on roofs to improve the habitat or save energy consumption, that is, technologies that fulfill an ecological function. The goals that this first law is intended to achieve is to improve the habitat and save energy consumption. There are also plans to cover the old rooftops of the city with vegetation in order to become carbon neutral by 2025.
It should be noted that Copenhagen is also the second city in the world with a legislation on green roofs.
The concrete jungle is a reality in many large cities and France has woken up to this serious problem and that is why it is betting on green roofs to reduce warming France has just approved a new pioneering law that requires all new buildings built to be covered partially by solar panels or green roofs. Toronto, in Canada, also implemented a similar law that has created 1.2 million square meters of green roofs, commercial centers, institutions, houses and apartment complexes.
A Clean Energy XXI report highlights that in Switzerland the Federal Green Roof Law has been implemented and contributes to the incorporation of green elements in the new buildings that have been built in recent years, under certain parameters and according to resources and area. your instalations.
In Buenos Aires, Argentina there is also Law 4428, Law of Green Roofs and Terraces, which is very similar to that of other European cities, although it is not mandatory for all citizens, there is a strong incentive to promote and provide tax benefits to those who decide to bet on green roofs, friendlier with the planet.
In the case of Chile, there are also policies and incentives for those who take the green turn, which eye is not cheap in terms of finances. Although there is no law that creates an obligation to install green roofs. Chile has achieved between 60 thousand square meters of roofs and green roofs, although these data are not official, it is even believed that there is a higher figure.
Green roofs can be used to:
- Grow fruits, vegetables and flowers
- Improve the air conditioning of the building
- Extend the life of the roof
- Reduce the risk of flooding
- Filter pollutants and CO2 from the air; see also Grow walls
- Act as an acoustic barrier; soil blocks low-frequency sounds and plants block high-frequency sounds
- Filter pollutants and heavy metals from rainwater
- Protect the diversity of urban areas.
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