Abstract
Carbon footprint over the life cycle is one of the most common environmental performance indicators. In recent years, several wood material producers have published environmental product declarations (EPDs) according to the EN 15804, which makes it possible to compare the carbon footprint of product alternatives. The objective of this study was to investigate the effect of service life aspects by comparing the carbon footprint of treated wood decking products with similar performance expectations. The results showed that the modified wood products had substantially larger carbon footprints during manufacturing than preservative-treated decking materials. Replacement of modified wood during service life creates a huge impact on life cycle carbon footprint, while maintenance with oil provided a large contribution for preservative-treated decking. Hence, service life and maintenance intervals are crucial for the performance ranking between products. The methodological issues to be aware of are: how the functional unit specifies the key performance requirements for the installed product, and whether full replacement is the best modeling option in cases where the decking installation is close to the end of the required service life.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: The authors wish to acknowledge the financial support of COST FP 1407 to enable international cooperation and for funding part of the travel to present this research at the ECWM conference.
Employment or leadership: None declared.
Honorarium: None declared.
References
Bolin, C.A., Smith, S. (2011) Life cycle assessment of ACQ-treated lumber with comparison to wood plastic composite decking. J. Clean. Prod. 19:620–629.10.1016/j.jclepro.2010.12.004Search in Google Scholar
Bowyer, J., Fernholz, K., Howe, J., Bratkovich, S. Wood-Plastic Composite Lumber vs. Wood Decking. A Comparison of Performance Characteristics and Environmental Attributes. Report from Dovetail Partners Inc., Minneapolis, MN, USA, 2010.Search in Google Scholar
Brischke, C., Rapp, A.O. (2008) Dose-response relationship between wood moisture content, wood temperature and fungal decay determined for 23 European field test sites. Wood Sci. Technol. 42:507–518.10.1007/s00226-008-0191-8Search in Google Scholar
Brischke, C., Rapp, A.O. (2010) Service Life Prediction of Wooden Components – Part 1: Determination of Dose Response Functions for Above Ground Decay. Document IRG/WP 10-20439. International Research Group on Wood Protection, Stockholm, 2010.Search in Google Scholar
Brischke, C., Bayerbach, R., Rapp, A.O. (2006) Decay influencing factors: A basis for service life prediction of wood and wood-based products. Wood Mater. Sci. Eng. 1:91–107.10.1080/17480270601019658Search in Google Scholar
CEN (2011) EN 15978 Sustainability of construction works – assessment of environmental performance of buildings – calculation method. European Committee for Standardization (CEN), Brussels, Belgium. pp. 64.Search in Google Scholar
CEN (2013a) EN 335:2013. Durability of wood and wood-based products – use classes: definitions, application to solid wood and wood-based products. European Committee for Standardization (CEN), Brussels, Belgium. pp. 20.Search in Google Scholar
CEN (2013b) EN 15804+A1:2013. Sustainability of construction works – environmental product declarations – core rules for the product category of construction products. European Committee for Standardization (CEN), Brussels, Belgium. pp. 68.Search in Google Scholar
CEN (2018) EN 15804+A1+prA2:2017 consolidated document. Sustainability of construction works – environmental product declarations – core rules for the product category of construction products. European Committee for Standardization (CEN), Brussels, Belgium. pp. 75.Search in Google Scholar
Feifel, S., Stübs, O., Seibert, K., Hartl, J. (2015) Comparing wood–polymer composites with solid wood: the case of sustainability of terrace flooring. Eur. J. Wood Prod. 73: 829–836.10.1007/s00107-015-0953-6Search in Google Scholar
Gobakken, L.R., Alfredsen, G., Brischke, C., Flæte, P.O. (2014) Levetid for tre i utendørs konstruksjoner i Norge: KlimaTre-prosjektet. [Service life of wood in outdoor constructions in Norway: The KlimaTre project]. Report from Norwegian Forest and Landscape Institute 16/14: IV, 32 p [in Norwegian].Search in Google Scholar
Hill, C.A. (2011) Wood modification: an update. BioResources 6:918–919.10.15376/biores.6.2.918-919Search in Google Scholar
ISO (2011) ISO 15686-1 Buildings and constructed assets – service life planning – Part 1: general principles and framework. International Organization for Standardization, Geneva, Switzerland. pp. 21.Search in Google Scholar
Sandberg, D., Kutnar, A., Mantis, G. (2017) Wood modification technologies – a review. iForest 10:895–908.10.3832/ifor2380-010Search in Google Scholar
Scheffer, T.C. (1971) A climate index for estimating potential for decay in wood structures above ground. Forest Prod. J. 21:25–31.Search in Google Scholar
Tellnes, L.G.F. (2017) Uncertainty in life cycle assessment of preservative treated wood – copper and freshwater ecotoxicity. Proceedings IRG Annual Meeting, IRG/WP 17-50331. pp. 9.Search in Google Scholar
Tellnes, L.G.F., Gobakken, L.R., Flæte, P.O., Alfredsen, G. (2014) Carbon footprint including effect of carbon storage for selected wooden facade materials. Wood Mater. Sci. Eng. 9:139–143.10.1080/17480272.2014.904432Search in Google Scholar
©2020 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Wood modification research in Europe
- Review
- Outlook for modified wood use and regulations in circular economy
- Original Articles
- Suitability of a lignin-derived mono-phenol mimic to replace phenol in phenol-formaldehyde resin for use in wood treatment
- Beech wood treated with polyglycerol succinate: a new effective method for its protection and stabilization
- Study on the impregnation quality of rubberwood (Hevea brasiliensis Müll. Arg.) and English oak (Quercus robur L.) sawn veneers after treatment with 1,3-dimethylol-4,5- dihydroxyethyleneurea (DMDHEU)
- The effect of diammonium phosphate and sodium silicate on the adhesion and fire properties of birch veneer
- Enhanced bonding of acetylated wood with an MUF-based adhesive and a resorcinol-formaldehyde-based primer
- Brown rot gene expression and regulation in acetylated and furfurylated wood: a complex picture
- Investigation of the effect of aging on wood hygroscopicity by 2D 1H NMR relaxometry
- Dynamic vapour sorption protocols for the quantification of accessible hydroxyl groups in wood
- A molecular model for reversible and irreversible hygroscopicity changes by thermal wood modification
- Effect of service life aspects on carbon footprint: a comparison of wood decking products
Articles in the same Issue
- Frontmatter
- Editorial
- Wood modification research in Europe
- Review
- Outlook for modified wood use and regulations in circular economy
- Original Articles
- Suitability of a lignin-derived mono-phenol mimic to replace phenol in phenol-formaldehyde resin for use in wood treatment
- Beech wood treated with polyglycerol succinate: a new effective method for its protection and stabilization
- Study on the impregnation quality of rubberwood (Hevea brasiliensis Müll. Arg.) and English oak (Quercus robur L.) sawn veneers after treatment with 1,3-dimethylol-4,5- dihydroxyethyleneurea (DMDHEU)
- The effect of diammonium phosphate and sodium silicate on the adhesion and fire properties of birch veneer
- Enhanced bonding of acetylated wood with an MUF-based adhesive and a resorcinol-formaldehyde-based primer
- Brown rot gene expression and regulation in acetylated and furfurylated wood: a complex picture
- Investigation of the effect of aging on wood hygroscopicity by 2D 1H NMR relaxometry
- Dynamic vapour sorption protocols for the quantification of accessible hydroxyl groups in wood
- A molecular model for reversible and irreversible hygroscopicity changes by thermal wood modification
- Effect of service life aspects on carbon footprint: a comparison of wood decking products