The construction regarded the full cover of the roof building of the school in Municipality of Nea Smyrni. The whole surface was 120m². The design of green roof was done having as a target the energy saving, the unification of the building with the natural site of the area and the contact of the students with green sites through their daily routine. The plants species that we used were all of native Mediterranean flora, low planting and they occupy a surface of 100 m². The corridors located between the planting sites are made of gravel.