O IMPACTO DAS JANELAS E DA ILUMINAÇÃO NATURAL NO CONFORTO VISUAL EM AMBIENTES DE ESCRITÓRIOS NO CLIMA TROPICAL QUENTE E ÚMIDO
Keywords:
visual comfort, windows, adaptive actions, office buildingsAbstract
Daylight offers benefits to the building and occupants, influencing energy efficiency and the quality of the internal environment, as well as productivity and worker health. In tropical climates, daylight is often excessive, being a source of glare and main cause of intensive use of artificial lighting throughout the day. Field research was conducted in two office buildings in the city of João Pessoa, PB. The recording of the illuminance in the workstations of the buildings was carried out simultaneously with the application of a questionnaire among 219 workers, with the aim of analyzing the influence of windows and daylighting on visual comfort in work environments. Illuminance at workstations ranged from 6.77 lux to 2620.4 lux. Regarding the satisfaction with the lighting, in one of the buildings (East facade) where the average illuminance was 795,31 lux, the satisfaction was 64.71% and the dissatisfaction was 30.15%. When the average was 564,95 lux (North and South facade building) the satisfaction was 82.72% and dissatisfaction was 11.11%. Regarding the daylight in the environment, there was a greater rejection in relation to the incident lighting in the workstation. Regarding the action of adjusting curtains or blinds, the percentage of workers who claim to activate this device daily was 22.94%, considering that only 28.97% of the total respondents are positioned at workstations close to the windows, it is understood that the greater frequency of handling is linked to the ease of access to the controls of the building systems.
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