ISO/DIS 20734:2025

This document explores and references the different daylight metrics used globally that could have been specifically designed to address different situations (e.g. climates, seasonal specific sunlight availability, cultural values, and seasonal weather patterns). This document also provides quality views criteria for all regularly occupied areas within a building. Finally, the design process is outlined which lists necessary actions during design, construction, commissioning, post commissioning, post occupancy evaluations, and continual improvement.