Establishment of Passive Energy Conservation Measure and Economic Evaluation of Fenestration System in Nonresidential Building of Korea

Table 3

Method for calculating the investment costs DB for an economic evaluation.

Labor cost	Direct labor cost	Direct labor cost × rate	Construction	7.6
			Industrial facility	7.6
Expenses	Other expenses	(Material cost + labor cost) × rate	Construction	6.4
			Industrial facility	6.4
	Worker’s compensation insurance	(Labor cost) × rate		1.01
	Health pension insurance	(Direct labor cost) × rate		Health: 1.7; Pension: 2.49
	Long-term care	(Health insurance) × rate		6.55
	Environmental preservation cost	(Material cost + direct labor cost) × rate		0.8
	Retirement costs deductible installment	(Direct labor cost) × rate		2.3