抄録
The life of conventional piping system depends on corrosion and deterioration. The long-life-piping system gives more economical advantage and more CO_2 emission advantage than the conventional piping system. This paper describes the results of evaluation the life cycle cost and the life cycle CO_2 of all-stainless steel piping system in apartment houses by LCC (life cycle cost) and LCCO_2 (life cycle CO_2) in the period of 200 years.
