The function of windows— A reappraisal

Abstract Traditional criteria for window design relate to daylight and ventilation requirements. Some criteria deriving from sunlight studies are also used. In the light of rapidly developing technology, rising standards of environment and changes in the depth of buildings, these criteria are beginning to lose their force. This paper examines current knowledge on the contribution of windows to sunshine awareness and desire and to the provision of a visual link with the outside world. It also describe working hypotheses and current experimental work concerning interference ‘meshes’, such as woven or slatted blinds which to a greater or lesser degree obscure external views. Some data in summary form is given on a survey in a new office block and critical points on which further research is needed are given.