Abstract
In this paper we estimated the effect of an environmental improvement and cost to apply the systems for the wooden construction material circulation in Saitama Prefecture.
First, the carbon flows in a metabolism process of wooden building stock were analyzed quantitatively. Secondly, the recycling technologies such as the wood reuse, the material recycling as an engineered wood, the thermal recycling as a wood chip were investigated. Thirdly, we evaluated the effect of CO2 emissions and costs by setting an alternative case to combine the circulation technologies in the timber building at the life cycle.
