Study of the Use of Lime Plaster on Heritage Buildings’ in Malaysia: A Case Study in George Town, Penang
School of Housing, Building and Planning, Universiti Sains Malaysia, 11800, Penang, Malaysia
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Awareness of the use of compatible materials in historical building conservation has resulted in a rebirth of lime technology and application. However, knowledge of the preparation of and procedures influencing the final quality of lime is still limited and disagreement regarding the proper use of lime in heritage building conservation still continues to exist. The purpose of this paper is to highlight the reasons for deterioration and to suggest possible treatments for external walls of heritage buildings in George Town, Penang. Since lime has been used on most external walls, it was chosen as the focus of this research. This study was conducted based on a qualitative method which drew upon a review of literature, visual observations, and interviews. From a pilot survey of 85 historical buildings in the core zone, it was found that from the use of lime based materials, the possible defects were caused by three factors: climatic change, air pollution, and maintenance issues. This study focuses on the use of lime plaster as well as issues that could arise from its improper use.
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