Factor Analysis for Development of Construction Period Calculation Model in Apartment House Remodeling

The main reason why remodeling construction is preferred over reconstruction in Korea is due to the relatively shorter time period, low waste generation, and resource savings compared to reconstruction. In addition, considering that the temporary housing period is usually 2 years, shortening the period is a very important consideration in urban and residential environment improvement projects. However, predicting a remodeling construction period is based only on the experience of the construction company. Remodeling committees do not have the required data for predicting such periods. Furthermore, there are only a few related studies on remodeling construction periods. Therefore, the purpose of this study is to analyze the factors affecting the period of remodeling construction so that it can be calculated at the initial stage which is the committee and the cooperative establishment phase. A comparative analysis between new apartment construction projects and remodeling construction projects is conducted. Both literature review and expert interviews are performed to derive the factors for a construction period calculation model. In this study, the factors that should be considered when calculating the period of remodeling construction are summarized and are verified by experts. The factor analysis carried out in this study can be used to estimate the remodeling construction period in the future.