PROBLEM TO BE SOLVED: To provide a rooftop greening technique as a rooftop greening method of construction capable of securing a green area surpassing a set area and having high added value at a low cost without making plant vegetation intervals dense. SOLUTION: This rooftop greening method of construction comprises using a plurality of many-sided greening bodies 10 in which a green area surpasses a set area, and dotting about a plurality of the many-sided greening bodies 10 mutually at intervals on a rooftop so as to three-dimensionally form a green surface. COPYRIGHT: (C)2006,JPO&NCIPI