PURPOSE: To facilitate the management for the culture of lawn, etc., reduce the weight and thickness of a greening unit, prevent the accumulation of rainwater, etc., between the unit and roof, prevent the flow-out of bed soil, uniformly irrigate the soil and reinforce the greening unit.
CONSTITUTION: The subject greening unit is composed of a base 20 having a water-distribution groove 21 on the lower face and permeable to water in vertical direction, a light-weight soil 10 placed on the base 20 and made of porous soil having a number of pores on the surface, a water-feeding pipe 40 embedded in the light-weight soil 10 to supply water to lawn G, an air-feeding pipe 40 to supply air to the light-weight soil 10 and a water-permeable reinforcing material 30 laid in the light-weight soil 10.
OGASAWARA KINRO
MIFUNE EINOSUKE
MORIYA YOSHIAKI
MIKADO IKUSHU NOJO KK