Research Article
Impact Analysis of Window-Wall Ratio on Heating and Cooling Energy Consumption of Residential Buildings in Hot Summer and Cold Winter Zone in China
Table 1
Components and thermal performance of the building envelope.
| Building envelope | Building envelope components | Heat transfer coefficients (W/(m2·K)) |
| External walls | 20 mm lime mortar + 150 mm porous concrete + 20 mm lime mortar | 0.987 |
| Roof | 20 mm lime mortar + 200 mm porous concrete + 130 mm reinforced concrete + 15 mm lime mortar | 0.812 |
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