Effectiveness of indoor environment quality in LEED-certified healthcare settings

Xuan, Xiaodong

doi:10.1177/1420326x15587564

Cited by 17 publications

(14 citation statements)

References 14 publications

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“…Evaluate Occupants To evaluate occupants' comfort, satisfaction, well-being, or health [27][28][29][30][31]; investigate the factors that affect their satisfaction [32][33][34]; understand their opinions or experiences of a space [35][36][37][38]; assess their productivity [39,40]; understand occupant behavior [41][42][43][44][45]; assess occupant opinions of green building rating tools [46,47]; or evaluate the sociality of occupants [48].…”

Section: Figure 4 Number Of Projects and Number Of Buildings Per Typementioning

confidence: 99%

Post-occupancy evaluation: State-of-the-art analysis and state-of-the-practice review

Froese

Brager

2018

Building and Environment

250

230

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Post-occupancy evaluation (POE) is a process of evaluating the performance of a building after it has been occupied for at least several years. The authors conducted a comprehensive and critical review to provide a both qualitative and quantitative introduction of POE, including a brief introduction of the history, definition and benefits of POE, a statistical analysis of 146 POE projects since 2010, a comparison of 13 existing POE protocols, a summary of emerging research focuses, and potential future research areas. The 146 POE projects were analyzed in terms of building types, countries, purposes, methods used, and key findings. The review of 13 POE 2 protocols show the state-of-the-practice POE techniques. Apart from POE projects, the authors present emerging research topics related to the visualization of POE results, analyses of occupant survey database, and measurement of occupancy. Finally, the discussion summarizes the current condition of POE research and proposes five transitions that POE efforts should pursue: from

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Section: Figure 4 Number Of Projects and Number Of Buildings Per Typementioning

confidence: 99%

Post-occupancy evaluation: State-of-the-art analysis and state-of-the-practice review

Froese

Brager

2018

Building and Environment

250

230

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“…4 Green buildings have become popular, and many studies have been conducted to evaluate the IEQ of green buildings, such as LEED-certified buildings. Previous studies 5–9 have demonstrated that LEED-certified buildings are superior to non-LEED facilities in building performance factors. A study documented in the Center for the Built Environment database 10 analysed 15 LEED certified green buildings and concluded that acoustics, thermal quality, lighting, cleanliness and space could score positive satisfaction ratings with occupants.…”

Section: Introductionmentioning

confidence: 98%

“…14 Through comparing two healthcare facilities on opposite sides of the street that belong to one healthcare system, it is clear that the LEED-certified healthcare setting is better than the non-LEED one in cleanliness, thermal comfort, safety, noise comfort, lighting comfort, overall comfort, perceived productivity, image presented to visitors, meeting staff needs and efficiency of space use. 9 By comparing a LEED-certified renovation of a pediatric healthcare facility with its previous, conventional counterpart, statistically significant improvements were found in productivity, staff satisfaction and quality of care. 15…”

Section: Introductionmentioning

confidence: 99%

Study of indoor environmental quality and occupant overall comfort and productivity in LEED- and non-LEED–certified healthcare settings

Xuan

2016

Indoor and Built Environment

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The study combined quantitative and qualitative approaches, in terms of both staff perception and facility manager perspective, to evaluate the effectiveness of indoor environmental quality (IEQ) of LEED–certified facilities and relationship between IEQ and occupant comfort and productivity in healthcare settings in the USA climate zones 2 and 3. A multiple-methods approach combining a questionnaire survey and semi-structured interview was tested for effective post-occupancy evaluation. The study compared one non-LEED healthcare facility with five LEED certified healthcare buildings and examined which variable(s) had significant relationship with comfort and productivity by surveying 249 occupants and interviewing six facility managers in six healthcare settings. The results showed that five LEED–certified healthcare settings were superior to one non-LEED facility in most of building performance factors. Building design, temperature comfort, image presented to visitors, use of space, control over noise and ability to meet occupants’ needs were significant predictors for overall comfort. Lighting overall, temperature comfort and image presented to visitors had a significant positive relationship with perceived productivity. Only one non-LEED hospital was selected and some buildings had small response rate, the results should be interpreted with caution.

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“…It is evident that most studies on building IEQ have considered thermal comfort, indoor air quality (IAQ), lighting, and acoustics as the main parameters to determine the indoor comfort level [3][4][5][6][7]. Numerous studies have integrated physical measurements and subjective surveys on the above four aspects of IEQ to determine the optimal design of healthcare facilities and better built environments [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A field study on indoor environment quality of Chinese inpatient buildings in a hot and humid region

Tang

Ding

et al. 2019

Building and Environment

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In this research, objective physical measurements and subjective questionnaire surveys are used to investigate the indoor environment quality of Chinese inpatient buildings. The relative humidity in the inpatient buildings reaches 65%-75% during summer, resulting in the regular appearance of microbial growth on indoor surfaces. The average outdoor air change rate measured through the CO 2 concentration decay method in the sampled inpatient rooms is 1.1 h −1 , which is 45% below the standard threshold. The CO 2 concentration in over 99% of the functional spaces is below the threshold of 1000 ppm. However, the dissatisfaction rate of the air freshness is higher than 25%, owing to the characteristics of healthcare activities. Insufficient fresh air volume and high supply air humidity ratio of the outdoor air system result in the inadequate dehumidification capacity and the over-humid environment in the inpatient buildings. From the perspective of indoor TVOC and PM2.5 concentration, a hospitable IAQ is achieved in the inpatient buildings. In the nurse unit, the illumination levels in public areas, such as patient corridors and nurse stations, are inadequate. The average noise levels (A) in the inpatient rooms and nurse stations are 50.7 and 61.6 dB, respectively, which exceeds the Chinese standard. According to the subjective survey, the dissatisfaction rates of overall IEQ in the summer for patients and visitors are 7.9% and 10.4%, respectively, while for staff it is 34.8%. Statistical analysis reveals that the satisfaction levels of the patient with the IEQ are higher than that of the visitor and staff.

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Effectiveness of indoor environment quality in LEED-certified healthcare settings

Cited by 17 publications

References 14 publications

Post-occupancy evaluation: State-of-the-art analysis and state-of-the-practice review

Post-occupancy evaluation: State-of-the-art analysis and state-of-the-practice review

Study of indoor environmental quality and occupant overall comfort and productivity in LEED- and non-LEED–certified healthcare settings

A field study on indoor environment quality of Chinese inpatient buildings in a hot and humid region

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