戸建住宅のライフサイクルコストの推計

抄録

This is an estimation of the life cycle cost (LCC) of Japanese wooden detached houses. From a questionnaire research, we calculated the survival probability of various part of a house and remaining rate. The years of 50% remaining rate is taken as a standard repair interval to make a simulation model of life cycle refurbishment of a house. The refurbishment cost was estimated from interviews to the professionals or the analysis of real cases. Applying them to the simulation model, LCC of 30 year life is estimated to be 2.16 times of new construction cost, and that of 60 year life is 3.25 times.