A green roof it’s a constructive solution that improves the thermal insulation of the building, enhances the urban microclimate, improves air quality and creates a natural habitat for fauna and flora. It’s made with a waterproof membrane over the slab, thermal insulation, draining layer, earth substract and a final layer of plants.
The plants should be selected considering the sun exposure, maintenance, local climate and rain levels. To reduce the maintenance the plants should have good resistance levels to high temperatures and low humidity.
Green roofs can be considered an extra thermal insulation layer to the building, helping to reduce the energetic consumption in more than 15%, as well as an acoustic insulation since they can reduce the sound reflection till 3dB and increase the sound insulation till 8dB.