JP2736957B

PURPOSE:To execute the plantation executed finishing on a roof substrate, in order to generate a plantation part on a slope roof. CONSTITUTION:A waterproof sheet 2 is laid on the execution surface of a slope roof substrate 1, and on the upper surface, plural rows of long drain plates 5, 5,... are erected in parallel to an eaves top end edge 2a, keeping a prescribed interval, for the slope direction. The long closing plates 6 and 6 are erected along the verge end edges 1c and 1c, in contact with both the ends of the long drain plates 5, 5,..., and in each of plural rows of longitudinal surrounding spaces formed from these long plates 5, 5,... and 6 and 6, a water permeable root protecting sheet 13 is superposed on the inner surface of the long drain plate 5. Further, inside each surrounding space, a three-dimensional screen-shaped sheet 16 is installed, and the inside of the three-dimensional large continuous vacant holes is charged with soil, and a charged layer 17a is formed, and soil is heaped on the upper surface to form a soil heaped-up layer 17b, and plural rows of plantation-executed divided bodies 18, 18,... having each soil heaped-up layer 17 are constituted.