ABSTRACT

The effect of daylight upon the circadian timing system or “biological clock” of building occupants is described. A computer model (GOLD) which has been developed to predict circadian phase shifting in building occupants is used to asses the effects of variation in latitude and fenestration orientation upon the predicted circadian phase shifting of occupants in a typical room configuration. Conclusions are drawn from the two studies as to optimised fenestration design for buildings in higher latitudes.