Study on Daylight Performance and Spatial Configuration of Low-cost Apartment Building in Indonesia through Computational Simulation

Daylight is one of the variables in measuring the Indoor Environment Quality (IEQ) of buildings. Optimizing daylighting in design will benefit the health of building occupants and also potentially contribute to energy saving. Most of the low-cost apartment buildings have a problem in providing daylight for the habitable space. This paper investigates the daylight performance of low-cost apartment buildings based on the space configuration. This study used two bed-rooms low-cost apartments (36 square meters) as a simulation model. Three building types used in this simulation are 1) The general typology, 2) The government typology, and 3) The alternative typology. This study used DIALux 9.1 software to simulate the daylight performance in a Low-cost apartment building. The simulation results are analysed and compared with the natural lighting standard for the building (SNI 03-6575-2001). The study shows that the alternative building type provides the best daylight performance in terms of an average levels of illuminance and distribution.

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