| 摘要 |
PROBLEM TO BE SOLVED: To provide a greening system having solved the problems that culture soil on a rooftop is easy to be dried in the wind, and the surface part of the soil is scattered in the high wind although such an attempt as to make a small garden or flower bed on a building rooftop to grow flowers or plants has been made. SOLUTION: This greening system is such as to make it possible to plant trees on rooftops of constructions such as residences or buildings, reserve water in a water tank when it rains without no anxiety about scatter and dry of the soil in the wind, smoothly drain surplus water through a drainpipe. The second objective method for arranging the building rooftop greening system is provided. |
