Carbon emissions of construction wood panels: a meta-analysis
DOI:
https://doi.org/10.46421/entac.v20i1.6193Keywords:
Wood products, Wood panels, Building materials, Carbon footprint, Life cycle assessmentAbstract
Expanding the use of biomaterials in construction is a strategy to reduce GHG emissions, since they absorb carbon from the atmosphere and store it in their biomass. However, industrialized systems such as wood frame and mass timber are still under development in Brazil. Within the traditional construction system (masonry and reinforced concrete structures) most wood has transitory uses. Some products, such as wood panels used as concrete formworks, have chemical adhesives that can affect the biomaterial carbon footprint and reduce its environmental benefits. Hence, this paper aimed to assess the impact in the GHG emissions from the chemical adhesives of wood products. Therefore, we conducted a meta-analysis with secondary data from wood panels LCA articles. As a result, we verified that from 10% to 50% of GHG emissions of plywood and OSB are related to the chemical components. With these results we expect to contribute with the studies of GHG mitigation through wood’s use; and that strategies are taken into consideration to reduce the chemicals impacts, that are in many studies ignored due to the low quantity used per product’s volume.
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