Research Article
Energy Performance Evaluation and Economic Analysis of Insulation Materials of Office Building in Korea
Table 2
Method for calculating the investment cost DB for economic analysis.
| Labor cost | Expenses |
| Direct labor cost | Other expenses | Worker’s compensation insurance | Health pension insurance | Long-term care insurance | Environmental preservation cost | Retirement cost deductible installment |
| Direct labor cost × rate | (Material cost + labor cost) × rate | Labor cost × rate | Direct labor cost × rate | Health insurance × rate | (Material cost + direct labor cost + expenses) × rate | Direct labor cost × rate | Construction | Industrial facility | Construction | Industrial facility |
| 7.6 | 7.6 | 6.4 | 6.4 | Worker’s compensation insurance: 3.8; employment insurance: 1.01 | Health: 1.7; pension: 2.49 | 6.44 | 0.8 | 2.3 |
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