Daylighting is a historicallyunderstood topic to be met in any design criteria. From the early days ofVitruvius, daylight has been discussed as a practice that can invoke ambiance,atmosphere and emotion to the space. Evolve through time, the research area ofdaylight has become a popular topic to be explored as it offer both qualitativeand quantitative benefits. Outline of rules also being aligned in many countryto govern the daylight fenestration as it is a major element in determiningcomfort in buildings. Many daylighting guidelines has been outlined atquantitative level to ensure an ample level of comfort to the end user whichare by means of illuminance, daylight factors or window size.
For instance, theUS Green Building council’s LEED-NC 2.2 (Leadership in Energy and EnvironmentalDesign-New Construction) criterion (2005) , a widely adopted standard ,requires achieving either a minimum glazing factor of 2% or at least 269 lux in75% of all regularly occupied areas.The Malaysian Standart , MS1525:2007 inCode of Practice on Energy Efficiency and Use of Renewable Energy forNon-Residential Buildings has recommended range of daylight factor is 1.0 % to3.
5 % . It is also has being incorporated in Uniform Building by Law Malaysiato be comply in any building submission. That shows that the basicconsideration of daylight design which is the quantity of daylight has beingaligned but the way in which people perceive the daylighting quality has notreceived the same attention as the other topics. Appreciation of daylight maybe differ from each individuals.
However ,in a study by Katerina Perperi in2004, as the codes and standards design criterion of daylighting is met , italone cannot ensure a satisfactory daylighting environment. It shows that atqualitative level , daylighting is subjective as it offers a different qualityto different users. The guidelines covers the area of quantitative value butthe irony is daylight is rather dynamic while electric light is static.