Economic Analysis for Setting Appropriate Repair Cycles on the Fixed Materials and Facilities in the Public Rental Housing

Table 7

Comparison of replacement cost according to the change of repair cycle and the application of optimal method (unit: ).

Division	Cost per unit household	⁢Total repair cost
		Households that passed 20 years (11,912 in total)	Total permanent rental houses (140,078 in total)
Cost of conventional repair cycle (20 years)
Conventional method	57,578	685,870,810	8,065,430,834
Optimal method	32,694	389,458,158	4,579,795,157
Cost of changed repair cycle
Conventional method	47,189	562,126,010	6,610,265,886
Optimal method	25,359	302,084,313	3,552,331,013