Abstract
In this study the analysis is to measure the performance on the extent of sunlight penetration on front apartment facades. The apartments are located in Putrajaya, Malaysia. Putrajaya is the administrative city for the federal government, and it is considered the latest new city in Malaysia with postmodern style buildings which exhibit a range of complex geometric elements blending with colonial, modern and traditional architectural style. The scope of this study is to measure the extent of sunlight penetration on the apartment facades. Two front facades of the apartments were selected in the case studies using computer simulation for the analysis. The selected case studies are sixteen stories apartment located in Precinct 17 and seventeen stories apartment located in Precinct 18. SunTool software is used in the survey to calculate the extent of sunlight penetration. The survey will be conducted at a position when the sun path is perpendicular to the house façade. This analysis will compare results of the computer simulations of these two apartments in relation to the facade design of the architectural elements for shading devices. This study finds that the more the application is the traditional shading elements, the more is the shading performance on the façade walls. However this study also finds that traditional shading elements are designed only to block sunlight from horizontal angle of the sun position. They are not designed to obstruct sunlight from vertical angle of the sun position.
Highlights
1.1 Problem of Direct Sunlight PenetrationThis study highlights problem of direct sunlight penetration to the interior area of apartment building and solar radiation on the apartment facade in tropical countries like Malaysia
The study on high rise apartment design is important because the building façade has a larger area with a tendency of exposure to direct sunlight compared to the building façade of low rise building (Ismail, 2002)
This study aims to get the results of the extent of sunlight penetration when the building facade exposes to the sunlight at the maximum level at a day time; by doing the simulation when the sunlight are perpendicular to the house facade, the survey will be able to discuss the efficiency of facade’s shading design (Mazloomi, Hassan, Bagherpour, & Ismail, 2010)
Summary
This study highlights problem of direct sunlight penetration to the interior area of apartment building and solar radiation on the apartment facade in tropical countries like Malaysia. Results of this study can be used as a guide for architects and those involved in the building industry to refer as issues to overcome solar radiation in apartment façade design. This reference provides awareness and guidelines for passive design with efficient usages of shading elements to avoid solar radiations in the tropical countries such as Malaysia (Bakhlah & Hassan, 2012)
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