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    Description

    Using sustainable building materials is gaining a significant presence in the US. This study examined hardwood lumber manufacturing using life-cycle inventory methodology. Material flow and energy use were identified for hardwood sawmills in northeastern US. A hardwood log volume conversion of 43.7% to planed dry lumber was found. Values of 608 MJ/m3 of electrical and 5800 MJ/m3 of thermal energy were determined for the manufacturing of planed dry hardwood lumber where mostly green wood residues were burned on-site for energy. Emission data produced from modeling estimated biomass and fossil CO2 production of 428 and 139 kg/m3, respectively. Increasing wood fuel use, a carbon-neutral process, would lower the environmental impact of hardwood lumber manufacturing and increase its use as a green building material.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Bergman, Richard D.; Bowe, Scott A. 2008. Environmental impact of producing hardwood lumber using life-cycle inventory. Wood and Fiber Science 40(3) (2008): 448-458.

    Keywords

    Environmental impact, hardwood lumber, life-cycle inventory, CORRIM, LCI, green material

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