Published Paper


Natural Lighting in Hotel Room Windows for Visual Comfort

1Riswandi Rohman, 2Lili Kusumawati
Department of Architecture, Faculty of Civil Engineering and Planning, Universitas Trisakti, Indonesia
Page: 692-716
Published on: 2025 June

Abstract

Abundant sunlight in the equatorial region is an energy potential that can be utilized optimally in terms of natural lighting. Natural lighting in architectural design has an important role, especially the window section that determines the visual comfort for occupants and electricity savings. The purpose of this study is how the window design strategy in controlling natural light entering the building to obtain a lux value based on the SNI 03-6197-2000 standard, and how to overcome glare for visual comfort. Quantitative research approach with data collection methods through literature studies, measurements, observations, and documentation. In conducting measurements using a lux meter and concept model simulation using Velux Daylight Visualizer and Dialux evo 10 software. Case study of a 3-star hotel building in Cikarang. The results of this study that the simulated window design that approaches the SNI standard illumination value is a vertical window type on the Center side of 224.6 lux. The most effective horizontal type shading tool is the west and east orientation with a value of 148.5 lux. The eggcrate type shading device can reduce illumination by 48%, while the horizontal and eggcrate type shading devices are the most effective, reducing illumination by 22.1%, followed by the vertical type at 16.9%. The conclusion is that the design of the vertical window on the Center side with a combination of horizontal shading devices is an effective design that approaches the standard values of illumination and glare.

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