Dressing behavior of construction workers in hot and humid weather

BACKGROUND: Construction workers in Hong Kong face high health risks of heat stress, solar ultraviolet radiation, and hazardous substances. A suitable work wear can lower exposure to these hazards, but the actual dressing behavior of construction workers remains unknown.OBJECTIVE: This study examines the current dressing patterns of construction workers and evaluates their limitations.METHODS: The dressing patterns of construction workers were investigated through unconcealed videotaped observation and questionnaire survey to enhance the reliability and validity of this research.RESULTS: Results indicate that construction workers were willing to wear short-sleeved shirts for a cooler feeling, although such dressing patterns may not protect them against solar ultraviolet radiation or hazardous substances. Their preferred dark-colored long pants can decrease the direct exposure to solar ultraviolet radiation and hazardous substances, but they absorb a large amount of radiation heat that increases the hazards of heat stress to the wearers.CONCLUSIONS: Thermal-related attributes were the most significant concerns of construction workers, which serve as key elements for designing appropriate work clothes for construction workers.