Life Cycle Assessment of Coated and Thermally Modified Wood Façades
Source abstract
Abstract
Façades—their design, aesthetics, performance, type of cladding material, and understructure—determine architectural expression and form unique appearances of individual buildings. In connection to the sustainable development idea, wood façades provide one of the alternatives of a contemporary building exterior look. Façade cladding made of coated and thermally modified wood can be successfully used for these buildings. In addition, thermally modified wood allows the use of local European wood species, while keeping cladding elements relatively thin. On the other hand, wood has certain structural limitations and disadvantages due to the properties of wood. The main weakness is caused by the surface durability of wood and its related need for maintenance over time. The scope of the study was a comprehensive assessment of coated non-heat-treated and thermally modified wood façades, performed in terms of life cycle assessment. The aim was to identify which type of wooden façade had the lowest environmental impact. According to the EN 15804 + A2 standard, the principle of evaluation of environmental parameters “cradle-to-gate-with options” was used to evaluate wooden façades and coatings and surface preservation methods. Simulations with the SimaPro program showed that the thermal modification of wood has a significant impact on the environment at the product stage. Nonetheless the thermally modified façade without any surface coating showed the lowest environmental impact in a 30 year time-horizon of the “use stage”. It was showed that surface maintenance methods applied, the coatings used, and the frequency of their application play an important role in the environmental impact of the investigated wooden façades.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Building materials and conservation · Wood Treatment and Properties · Hygrothermal properties of building materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Wooden Construction, Faculty of Wood Sciences and Technology, Technical University in Zvolen, T.G. Masaryka 24, 96001 Zvolen, Slovakia
Funding
Slovak Research and Development Agency
References (35)
Show source-provided references
1. Competitiveness of timber floor elements: An assessment of structural properties, production, costs, and carbon emissions
2. Thermal performace and aesthetics of wood-aluminium windows for passive houses
3. An environmental assessment of wood and steel reinforced concrete housing construction10.1016/j.buildenv.2006.07.021 ↗
4. (2007). ISO 14040—Environmental Management—Life Cycle Assessment—Principles and Frameworks, International Organization for Standardization.
5. (2007). ISO 14044—Environmental Management—Life Cycle Assessment—Requirements and Guidelines, International Organization for Standardization.
6. (2020). EN 15804+A2—Sustainability of Construction Works—Environmental Product Declarations—Core Rules for the Product Category of Construction Products—Level of Incorporation, European Standards s.r.o.
7. Product category rules and environmental product declarations as tools to promote sustainable products: Experiences from a case study of furniture production10.1007/s10098-008-0163-6 ↗
8. Recent developments, future challenges and new research directions in LCA of buildings: A critical review10.1016/j.rser.2016.09.058 ↗
9. IMPACT 2002+: A new life cycle impact assessment methodology10.1007/BF02978505 ↗
10. Comparing intensive, extensified and organic grassland farming in southern Germany by process life cycle assessment10.1016/S0167-8809(00)00160-2 ↗
11. (2021, May 10). Environmetal Product Declaration, ©2019. Available online: http://lunawood.com/environmental-product-declaration/.
12. (2010). ISO 14025—Environmental Labels and Declarations—Type III Environmental Declarations—Principles and Procedures, International Organization for Standardization.
13. Silva, D., Nunes, A.O., da Silva Moris, A., Moro, C., and Piekarski, T.O. (2017, January 12–15). How important is the LCA software tool you choose comparative results from GaBi, openLCA, SimaPro and Umberto. Proceedings of the VII Conferencia Internacional de Análisis de Ciclo de Vida en Latinoamérica, Medellin, Colombia.
14. Does it matter which Life Cycle Assessment (LCA) tool you choose?—A comparative assessment of SimaPro and GaBi10.1016/j.jclepro.2014.08.004 ↗
15. Jones, D., Suttie, E., Ala-Viikari, J., Bergstrom, N., and Mayes, D. (2006, January 18–22). The commercialisation of ThermoWood® products (Doc. No. IRG/WP 06-40339). Proceedings of the 37th International Research Group on Wood Protection (IRG37), Tromsø, Norway.
16. Navi, P., and Sandberg, D. (2012). Thermo-Hydro-Mechanical Wood Processing, CRC Press.10.1201/b10143 ↗
17. Compressed and moulded wood from processing to products10.1515/hf-2014-0187 ↗
18. Reinprecht, L., and Vidholdova, Z. (2011). Termodrevo. Scientific Monograph, ŠMÍRA-PRINT, s.r.o.
19. Life Cycle Assessment as a tool to promote sustainable Thermowood boards: A Portuguese case study10.1080/20426445.2016.1160592 ↗
20. (2013). EN 335-1—Durability of Wood and Wood-Based Products—Use Classes: Definitions, Application to Solid Wood and Wood-Based Products, European Standards s.r.o.
21. Reinprecht, L. (2008). Wood protection. University handbook, Technical University in Zvolen.
22. Ekstedt, J. (2002). Studies on the Barrier Properties of Exterior Wood Coatings. [Ph.D. Thesis, KTH Royal Institute of Technology].
23. Vanova, R., Vlcko, M., and Stefko, J. (2021). Life cycle impact assessment of load-bearing straw bale residential building. Materials, 14.10.3390/ma14113064 ↗
24. Maintenance procedures and definition of limit states for exterior wood coatings10.1007/s00107-010-0469-z ↗
25. Microautoradiographic studies of the penetration of alkyd, alkyd emulsion and linseed oil coatings into wood10.1007/BF02697811 ↗
26. Restoration of severely weathered wood10.1007/BF02698004 ↗
27. (2014). EN 927-2—Paints and Varnishes—Coating Materials and Coating Systems for Exterior Wood, European Standards s.r.o.
28. (2021). Licence Software Simapro, Official License by the Technical University in Zvolen.
29. (2021, May 21). Skanska Transbeton, s.r.o., Letňany, 3015-EPD030059835, Issue Date 01/2020. Available online: http://www.skanska.cz/epd-skanska-betony-letnany/.
30. (2017). EN 350-2—Durability of Wood and Wood-Based Products—Testing and Classification of the Durability to Biological Agents of Wood and Wood-Based Materials, European Standards s.r.o.
31. (2006). EN 14519—Solid Softwood Panelling and Cladding—Machined Profiles with Tongue and Groove, European Standards s.r.o.
32. (2021). Licence Software Autocad, Official License by the Technical University in Zvolen.
33. Linkosalmi, L., Laine, K., and Rautkari, L. (2015, January 25–26). Life cycle impacts of modified wood products. Proceedings of the COST Action FP1407 1st Conference “Life Cycle Assessment, EPDs and modified wood, Koper, Slovenia.
34. Gudum, C. (2003). Moisture Transport and Convection in Building Envelopes. [Ph.D. Thesis, Technical University of Denmark].
35. Hill, C., Hughes, M., and Gudsell, D. (2021). Environmental impact of wood modification. Coatings, 11.10.3390/coatings11030366 ↗