Globally, a primary concern is whether green office buildings perform as promised in terms of providing better indoor environment quality (IEQ) for employees, which may affect their satisfaction and work performance. In the Middle East, although there has been renewed interest in green building design, post occupancy evaluation of performance has never been conducted to-date, and evidence of actual occupant perception in green and non-green buildings is still ambiguous. Hence, we present the first study on IEQ performance in the Middle East. We show that Jordan can be taken as a representative example and systematically compare five “green” office buildings (representing 71% of all green-certified office buildings) against eight comparable conventional office buildings (CBs). Detailed bi-lingual survey data on perceived IEQ (n = 502) and work performance are accompanied by high-resolution continuous physical measurements of air temperature + relative humidity (n = 83) and CO₂ concentrations (n = 21) with periodic measurements of mean radiant temperature and air speed, covering two typical summers and one typical winter. Results show both buildings types comply with design standards for indoor CO₂ levels, while thermal comfort in green buildings is better than in CBs. However, CBs have a higher overall occupant satisfaction of IEQ. Work performance measured as absolute and relative absenteeism was slightly higher in CBs, with no significant differences in relative and absolute presenteeism between the two buildings types. These findings challenge the notion that green buildings improve occupant satisfaction and work performance over CBs and suggest the need for a better understanding of the performance-satisfaction gap.

中文翻译：

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中东“绿色”办公大楼的室内环境质量和工作绩效

在全球范围内，首要关注的问题是绿色办公大楼是否能为员工提供更好的室内环境质量（IEQ），从而达到承诺的目标，这可能会影响他们的满意度和工作绩效。在中东，尽管人们对绿色建筑设计重新产生了兴趣，但迄今为止尚未进行过占用后性能评估，并且关于绿色和非绿色建筑中实际占用者感知的证据仍然不明确。因此，我们提出了关于IEQ在中东地区表现的第一项研究。我们显示，约旦可以作为代表，可以系统比较五座“绿色”办公大楼（占所有绿色认证办公大楼的71％）与八座可比的常规办公大楼（CB）。有关感知的IEQ的详细的双语调查数据（n = 502）和工作性能伴随着对空气温度+相对湿度（n = 83）和CO ₂浓度（n = 21）的高分辨率连续物理测量以及平均辐射温度和空气速度的定期测量，涵盖了两种典型夏天和一个典型的冬天。结果表明两种建筑物均符合室内CO ₂设计标准级别，而绿色建筑的热舒适性要优于断路器。但是，CB对IEQ的总体满意度较高。在CB中，以绝对和相对缺勤率衡量的工作绩效略高，两种类型的相对和绝对出勤率均无显着差异。这些发现挑战了绿色建筑比起CB可以提高居住者满意度和工作绩效的观点，并建议需要更好地了解绩效满意度差距。