Heat - and humidity for plants on roof gardens

摘要

A roof garden on a flat reinforced concrete roof (1) rests on a layer of insulating material (2), a roof sealing web (3), a water retaining web (4) and a drainage layer (6) below a filter mat (5). The substrate (7) of earthy soil for the deep roots of the plants (9) is covered by extruded plates (8) of polystyrene foam with holes (10) for the plants (9). A lining (11) or a gravel layer (12) can finish the lot and carry lawn (13). ADVANTAGE - This combines heat and moisture insulation for roof gardens and prevents rapid drying out of the earth in hot summers.