Table 3.
The health and environmental impact of commercial wood modification

Wood modification process Impact during processing Impact during the service life
ThemoWood® ¾ wood production consumes energy (in terms of electricity, gas, or biomass) since the treatment is based on heat production, and no chemicals are added (Ferreira et al., 2016). - Fulfil the criteria of M1 (the best quality and emission class) class of Finnish emission classification of building material (Ala-Viikari and Mayes 2009)- Life cycle assessment (LCA) approved for ecological building material considering the production activities and its disposal at the end of the life cycle (Ala-Viikari, 2007)
Plato® The effort for productive energy utilization:- A closed and circulated cooling water system- Isolated equipment- Flash unit that makes low pressure stem out of the condensate of medium pressure steam- During winter, heating is done by pumping the condensate of low-pressure steam through radiators N/A
Oil heat treatment Low environmental impact heat is introduced in the treatment system, and smokes from wood can be retrieved, condensed, and purified (Candelier et al., 2016) Wood can be recycled without harmful impact on the environment (Candelier et al., 2016)
Accoya® Low emissions compared to other typical building materials on a cradle-to-gate basis, such as aluminium, steel, PVC, concrete and ceramic tiles. The embodied emission of Accoya® are better than sustainably source woods and offer significant improvements against unsustainably sourced materials like plastics and metals (Trueman 2013). - Lower carbon footprint than steel, concrete, and unsustainably source hardwood, and it is competitive in terms of carbon footprint with sustainably source hardwood (Bongers and Uphill 2019)- CO2 negative LCA over a full life cycle (Mantanis, 2017)
Kebony® Use of furfuryl alcohol obtained from renewable hydrolyzed biomass waste and improvement of the polymerization process (Gérardin 2016) It is recognized as exempt from the Biocidal Products Directory (BPD), given the absence of active compounds in the process (Jones, 2007).
Remarks: N/A data not available