Green roofs provide many benefits beyond aesthetics:
- Thermal comfort : green roofs can reduce the temperature of rooms under roofs by 5 to 11°C in summer. A Canadian study showed that this can lead to a reduction in the energy consumption of airco systems of more than 60%.
- Acoustic Comfort :
Homegrade indicates that an extensive green roof induces an acoustic attenuation of 35dB. - Combination with photovoltaic panels: Australian researchers have shown that peak output increases by up to 107% when combined with green roofs. The main reason lies in the fact that the panels are optimized to operate at about 23°C, and green roofs can reduce the roof temperature from 70°C to 34°C in the summer.
- Waterproofing lifespan : green roofing protects the waterproofing from temperature variations and UV rays. Homegrade indicates that green roofs can more than double the lifespan of the waterproofing.
- Rainwater storage :
Homegrade estimates that extensive green roofs can retain up to 50% of rainwater during heavy downpours - Improved air quality: green roof plants filter fine particles and dust suspended in the air (up to 2kg/10m²/year).
- Biodiversity: the abundant and prolonged flowering of sedum provides a reliable nectar source for bees, especially in stressful environments.
Advantages of the greening of flat roofs with Quick Sedum
- Extremely simple installation system, four in one (drainage, substrate, water retention and vegetation)
- When the installation is done by the roofer, the waterproofing and the greening are carried out by the same operator.
- Easy maintenance of the waterproofing: in case of a problem with the waterproofing, simply lift the box to check the condition of the waterproofing.
- The visual rendering is immediate, with 5-10 varieties of sedum per box to extend the flowering period.