In cities, there are not enough green spaces that act as CO₂ sinks. Green roofs can change this: 1 m² of extensive green roof can absorb up to 1.8 kg CO₂.

Extensive green roofs store up to 50 litres of rainwater per m². This is particularly advantageous during heavy rainfall, as it retains water volumes and relieves the burden on the municipal sewer system.

Natural evaporation reduces the ambient temperature. In addition, a green roof absorbs less solar energy than the roof surface below. This makes the city climate cooler.

Air conditioners use F-gases as refrigerants. These are 100x – 10,000x more harmful to the environment than CO₂. In summer, a green roof serves as a heat shield, so less air conditioning is required.

Fine dust and air pollutants are filtered by plants on the roof. Thus, we have cleaner air in cities. Our living space becomes more attractive and the health of city residents is promoted.

Green roofs provide a valuable habitat for animals and plants. Biodiversity is increased. Lots of living green has a positive effect on health and makes us humans happier.

Costs for sewage and sewerage fees as well as air conditioning are reduced. Greening the building increases the value of the property by an average of 4 – 8%.

Green roofs provide a cooler ambient temperature. By combining green roofs with solar panels, an efficiency increase of about 4% – 7% per solar panel is possible in summer.