Analysis of Energy Performance on Envelope Ratio Exposed to the Outdoor

Table 1

Material properties and conditions of the computer model.

Construction	Description	U-value (W/m^2K)
Ground/exposed floor	Concrete (180 mm) + insulating material (65 mm) + cultivated sandy soil (40 mm) + polystyrene (65 mm)	0.4121
Internal partition/exterior wall	Concrete (200 mm)	2.4823
External/ceiling/floor	Concrete (180 mm) + insulating material (20 mm) + cultivated sandy soil (40 mm) + polystyrene (40 mm)	0.9565
External glazing	Double glazing: clear float (6 mm) + cavity (12 mm) + clear float (6 mm)	2.7387
	Glass data: conductivity (1.06 W/mK), transmittance (0.78), outside reflectance (0.07), outside reflectance (0.07), refractive index (1.526)
Roof	Plaster 95 mm + concrete 200 mm	1.1400