The Photogrammetric Process to Monitor Condensation Risk Inside Laboratory in the Educational Building

Laboratory in educational building plays an important role in nurturing knowledge particularly for students and researchers. However, the laboratory is often left empty with no ventilation during night and weekend. It can cause high relative humidity and lead to condensation risk. It should be prevented since laboratories are a daily working place for researchers and they have to maintain the indoor environmental quality and the particular equipment there. Therefore, to avoid further destruction in the laboratory, a detection method is needed. This study aims to detect condensation risk in a laboratory in educational buildings. To do so, photogrammetry with thermal cameras was utilized with the Structure from Motion (SfM) approach. At the same time, the field measurement was conducted, namely air temperature and relative humidity using HOBO data logger. The result shows that condensation already happened in the laboratory, and the condensation will continue when the air-condition in the room is turned off due to the high relative humidity. This study recommends further investigation of other risks that may happen in the laboratory.