Effective Building Surveying Using Laser Scanning for Heritage Building Documentation

Abstract

In conservation works, a thorough pathology survey is required to identify building defects. Early detection of defects can prevent the increase in cost during conservation works. Conventionally, common defects that occur in heritage buildings can be observed and recorded during a walk-by inspection; however, the process is often time consuming. Furthermore, all recorded defects require a precise but conventional data collection to identify, test, and observe the level of defects. This study aims to compare the effectiveness of manual walk-in building condition assessment with the point cloud data analysis that utilises theLight Detection and Ranging (LiDAR) technology. A building condition assessment was conducted involving theIpoh Town Halland Post Office, Galeri Kraftangan Seremban,and Bangunan Dato’Jaafarin Johor Bahru using both conventional walk-in survey and thelaser scanning process. Thisstudy concludes that combining digital tools with the traditional methods promotes a more accurate and effective assessment for heritage building assessment, which iscrucial forensuring the sustainability of historic structures. Additionally, 3D point cloud dataallows the exploration ofbuilding deterioration from a wider perspective.