Analyzing Labor Productivity for Installing Residential Fire Protection Systems

공동주택 소방기계설비공사의 현장생산성 분석

Compared to its building construction work, the percentage of labor cost of residential fire protection system construction is relatively high. Over 50 percent of the total project costs are allocated to the labor cost in installing fire protection systems. Thus, it is critical to improve labor productivity by effective resource allocation in order for cost reduction and quality control. The main purpose of this study is to analyze the labor productivity for installing residential fire protection systems. To achieve the study goal, three construction sites were comparatively analyzed in terms of labor productivity of different work types based on the daily work report and quantity takeoff worksheet. These work types include sprinkler, sleeve, and fire piping installation. By computing labor productivity of different work types, the actual productivity of each work type was compared to the quantity required by the standards of construction estimate (Poomsaem). In addition, important factors that affect labor productivity were also identified by analyzing various project characteristics with ANOVA test. The results of the study showed that sprinkler installation requires the highest number of workers than any other work types. This study ultimately contribute to the basis for effective resource allocation plan and scheduling management in residental fire protection system construction.