The main goal in this study is to assess the GHG emissions for planed timber and for surface treated cladding in different stages. Calculations are made based on data from five timber manufacturers in Norway. Results show that the wood raw material and sawlogs transport contribute the most (together 70%) to the total GHG emissions for production of planed timber, which is 58 kgCO2-eq/m3. However, by addition of surface treatment for the exterior use in the production, installation, and maintenance, with 9 years of painting intervals for 60 years, the total emission will be 5 times higher and up to 295 kg CO2-eq/m3.
Keywords: LCA, sawmills, emissions, GWP, GHG, paint
Authors
Roja Modaresi
NTI Norwegian Institute of Wood Technology, Norway
Johann Kristian Næss
NTI Norwegian Institute of Wood Technology, Norway
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