1) planting layer: to achieve aesthetics and improving the environment request, like gardens, is more than 10 kg / ㎡.
Note: most of plant roots growth have people imagine growth ability, can adapt to any environment, as long as there is a gap, they will constantly grow, even through floor slab or general tanking, once the waterproof layer was through, the rain will be entering the building until the damaged buildings protection layer, and then through isolation layer, slowly to destroy the entire building system. So green roof garden must do plant root resistance.
2) nutrition planting soil: for plants provide living space and a moderate amount of water and nutrient, about 7 to 13 kg / ㎡.
3) drainage filter layer: store water and the moisture of excessive discharge to the external, and prevent tiny particles into and jam drainage system.
4) facing root resistance tanking: waterproof layer at the same time prevent plant roots through tanking the following roof structure, about 4.93 kg / ㎡.
5) bottom root resistance tanking: strengthen the root resistance strength, improve the roof insurance coefficient 3.5 kg / ㎡,.
6) thermal insulation layer: for the building to provide insulation performance, material EPS or XPS.
7) every gas: effectively protect heat preservation material don't sweat, to ensure the roofing heat preservation performance at the same time avoid plant roots grow down violently, prevent humidity to enter thermal insulation layer, ensure insulation heat preservation performance long-term effective.
8) structure base: bearing base, such as concrete base, cement base and steel structure base