G-54 Study on Reduction of Greenhouse Gas from Houses by Thermal Insulation (Part6) : Life Cycle Cost Assessment on Thermal Insulation including External Cost by Environmental Impacts

Abstract

The purpose of this study is to show the effect of the increase of the external cost from environmental impacts. The results of simulation are as follows. 1) Influence of external cost on Life Cycle Cost (LCC) is not so large. 2) However, in case of adopting HCFC for foamed insulation, the percentage of external cost in LCC is about 10%. 3) External cost when adopting CFC for the foaming insulation is four times larger than the one when adopting HCFC.