PERIPHERAL STRUCTURE OF GREEN AREA

PROBLEM TO BE SOLVED: To provide a peripheral structure lessening a temperature difference between a green area and a non-green area and suppressing a temperature rise as the whole to make a green area construction on a rooftop meaningful, preventing ultraviolet rays to a water-resistant layer of the periphery of a green area, drainage from a green area and other adverse effects by water, and balancing the durability of a water-resistant layer both in the green area and the non-green area so as to prevent an increase in maintenance cost caused by early exhaustion of a water-resistant layer in the non-green area, compared to the green area. SOLUTION: The peripheral structure of a green area is laid continuing from the end part of a green area constructed on the water-resistant layer of a rooftop or a roof of a building, and includes a covering means formed on the water-resistant layer of the end periphery of a planting area. The covering means includes a drainage structure and a surface layer formed thereon. The surface layer is laid on a recessed part formed in the upper surface of the drainage structure, and on the other hand, a drainage part is set on the bottom of the drainage structure so as to flow while covering running water from the planting area to a prescribed direction. COPYRIGHT: (C)2010,JPO&INPIT