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Green roofs: a benefit for a healthier environment.

© Marie Fontaine -

🪴🌷🌱 Green roofs are roofs covered with vegetation: plants, flowers or grass.

🏡 The Nordic countries were the first to integrate this traditional construction style into their housing.

👉🪴 Green roofs have an ecological interest that respects the environment and biodiversity and also have other advantages:

1️⃣🌡 They provide thermal and acoustic insulation.

In summer, when it is very hot, green roofs maintain a pleasant temperature inside the house.

Conversely, in winter, they protect from the cold and keep the heat inside.

They also provide acoustic comfort thanks to the layer of plants that dampens external noise.

2️⃣☀️ They reduce heat islands in urban areas. The more green roofs there are, the lower the outdoor ambient temperature.

3️⃣💦 They filter water. Green roofs facilitate the management of rainwater. Part of the water is conserved by the plants and the other part can be recovered in storage tanks for redistribution (watering, air conditioning, toilets...)

4️⃣⛈They reduce the risk of flooding, thanks to the rainwater drainage system and the reduction of runoff water.

Green roofs have the capacity to retain rainwater and to evacuate it later thanks to the natural evapotranspiration of plants. It thus allows the sewers not to be clogged.

5️⃣♻️ They contribute to the reduction of CO2 and regulate the humidity of the air.

Thanks to photosynthesis, green roofs retain the CO2 that pollutes the air and then release oxygen. The evapotranspiration system of the plants on a roof terrace generates dew, which in turn fixes the toxic particles and dust suspended in the air.

6️⃣🐝 Green roofs improve the development of biodiversity and contribute to the diversity of plants, which favors the return of birds and insects in city centers.


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