INTRODUCTION OF NEW DAYLIGHTING METRICS FOR HEALTH, WELLBEING, AND FEASIBILITY: A STUDY OF THE INDOOR BUILDING ENVIRONMENT

Jaewook Lee, Mohamed Boubekri

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigates the applicability of a new daylighting metric based on human health, an emerging framework for evaluating the effect of daylight on building occupants. Procedures based on modeling annual daylight availability are used to determine the mapping of daylight distribution on a daily, seasonal, and yearly basis. Literature review and experimental studies were performed to propose the new daylighting metrics for health and wellbeing. The proposed metrics have two broad criteria, including daylighting level, timing, and duration. The two details are as follows: (1) 400 lux for 5 hours (2K lux·h) in the daytime; and (2) 500 lux for 1 hour (0.5K lux·h) in the early morning, 8AM-9AM. To verify the applicability of the proposed daylighting metrics to current buildings, sample buildings were selected and daily, spatial and seasonal differences were simulated through computer visualization techniques. Moreover, we evaluated the application of the daylighting metric on the building layout and compared the new daylighting metric for health and wellbeing with conventional daylighting metrics.

Original languageEnglish (US)
Pages (from-to)105-126
Number of pages22
JournalJournal of Green Building
Volume17
Issue number1
DOIs
StatePublished - Dec 1 2022

Keywords

  • Circadian rhythm
  • Daylight
  • Daylighting metric
  • Health and wellbeing
  • Sleep

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Architecture
  • Geography, Planning and Development
  • Building and Construction
  • General Environmental Science
  • Public Health, Environmental and Occupational Health
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

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