GB/T 50466-2018 第4.2.2条
| | The window-to-wall area ratio of hotel buildings in each orientation shall comply with the regulations: in severe cold and cold regions, north-facing ≤0.25, east- and west-facing ≤0.30, south-facing ≤0.35; in hot summer and cold winter and hot summer and warm winter regions, each orientation ≤0.45. |