Energy Performance Evaluation and Economic Analysis of Insulation Materials of Office Building in Korea

Table 6

Envelope performance of the target building.

Building component	U value (W/m^2·K)	Legal criteria (W/m^2·K)	Building component	U value (W/m^2·K)	Legal criteria (W/m^2·K)
Wall (direct)	0.244	0.270	Window (direct)	2.0	2.100
Roof (direct)	0.165	0.180	Window (direct)	1.9	2.100
Floor (direct)	0.254	0.290	Window (indirect)	2.4	2.600
Floor (indirect)	0.237	0.410	Door (direct)	1.8	2.600
—	—	—	Door (indirect)	2.3	2.100