At present, the use of eco-friendly building materials is needed in order to reduce the environmental load. From this viewpoint, a LCA database has been established by the Architectural Institute of Japan. However, the database has two problems. First, the environmental load of imported wood materials is not evaluated. Second, the environmental load of wood materials in the database is stored as an average value. The purpose of this study is developing a LCA database of wood materials that takes into account imported wood materials and contains detailed data for the forestry, manufacturing, and transport stages.
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