| 摘要 |
<p>PURPOSE:To expand variation of a roof unit at a low cost by properly combining a sub-roof unit with a standard roof unit. CONSTITUTION:A sub-roof unit Da is placed to cover one end of the roof gradient surface 31 of a standard roof unit A formed of two roof gradient surfaces 31, 32, side walls 33, 34 and two opposed side wall surfaces. The roof gradient surface 12 of the sub-roof unit Da is continued to the roof gradient surface 32 of the standard roof unit A, its roof gradient surface 11 is crossed with the roof gradient surface 31, and the side wall surfaces 14, 15 of the sub-roof unit Da are fixed to the opposed surfaces of the side wall surfaces 34 and 33 of the standard roof unit A to constitute the same surfaces with them, respectively, to form one roof unit as the whole. The number of roof gradient surfaces in the sub-roof unit is increased, or sub-roof units are combined together, whereby variation of a roof unit is expanded.</p> |
