Quality of Daylighting in Gereja Kristen Jawi Wetan in Indonesia

Nilasari, Poppy Firtatwentyna and Ekasiwi, Sri Nastiti Nugrahani and Antaryama, I Gusti Ngurah (2012) Quality of Daylighting in Gereja Kristen Jawi Wetan in Indonesia. In: 2nd CONVEEESH 13Th SENVAR International Conference, 29-11-2012 - 30-11-2012, Yogyakarta - Indonesia.

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Abstract

Gereja Kristen Jawi Wetan (GKJW) is a church that has the remark of local community in East Java. At the beginning, GKJW was evolved in rural areas, and later development has embraced urban areas, where in total 158 congregations exist until now. Churches acommodating these congregations, commonly adopt four different layouts with windows at the perimeter. For lighting, the churches use daylight and electrical lights. Combination of the two lighting systems is believed contributing to religious atmosphere in the churches. Lighting plays an important role not only in determining quantity of light for facilitating activities but also in creating aesthetic quality and certain expression in a building. For religious buildings, a designer considers the lighting system very carefully as it gives significant influence on the worship service. In the case of GKJW churches, there are variations in lighting quality, and the present study aims at exploring this quality, especially that relates to daylighting. The study utilised field observations and measurements to describe the daylighting quality of four churches in Surabaya. Data taken during the worship service in the church was analysed and evaluated on the basis of distribution of the light. Results of the study showed that there is a relation between light distributions in building with building shape, position and width of the openings.

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