Abstract
This report, following the privious one of this series by Dr. Utida, deals with an approximation of the surface area of building elements, such as exterior walls, partitions and their openings, in Japanese small houses. First, the basic relation between the floor spaces and the number of rooms (including closets larger about one meter square), grounded on some examples of one-storeyed house plan, is given as Fig. 1 (a) (b) and formula (4), This remarkble relation, being substituted to the previous results (1) (2) (3), brings out an monogram Fig.4 for the length of exterior walls and partitions (including open parts). As shown in Fig.3, the leugth of partitious ranges near about 0.6 meter per 1 m^2 of floor space, unconnected with the floor spaces. Next, an approach of the surface area of walls and partitions is given as Fig. 5〜9. It goes without saying that the opening that the opening ratio of walls in Japanese style houses or Japanese-European style houses differs so much from that in European style houses. The growing ratio of the length of exterior walls and other building element's quantity is described in case the proportion of the side length of rectangular plan is rather large or the plan has some convex and concave parts, comparing with that of exact square plan. Nearly same relations between one-storeyed plan and two-storeyed (or multi-storeyed) plan are also touched upon.
