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

Table 6

Comparison of conventional repair cycle and changed repair cycle per unit household (unit: ).

Year		1990	1995	2000	2005	2010	2015	2020	2025	2030	2035	Total replacement cost	Cost reduction rate
Elapsed time after move-in (years)		Initial move-in	5 years	10 years	15 years	20 years	25 years	30 years	35 years	40 years	45 years
Conventional repair cycle	Conventional method	—	—	—	—	28,789	—	—	—	28,789	—	57,578	기준
	Optimal method	—	—	—	—	16,347	—	—	—	16,347	—	32,694	43.2%
Changed repair cycle	Conventional method	—	—	—	—	16,594	12,483	1,519	—	16,594	—	47,190	18.0%
	Optimal method	—	—	—	—	8,122	8,102	1,014	—	8,122	—	25,360	56.0%
Cost of conventional repair cycle (20 years)												57,578
Profit from the changed repair cycle												10,388
Profit from the application of the optimal method												24,884
Profit from the simultaneous application of the repair cycle and optimal method												32,218