Waste wood can be a potentially valuable resource for the manufacture
of various materials and products (Lykidis and Grigoriou,
2008). The type and volume of wastes generated during the manufacture
of forest products have changed over time depending on
various factors. One of these factors is the reduction in the amount
of wood resources available. One example is the change in the past
and present utilisation of bark, a by-product of the forest-products
industry. The economic value of bark is much lower than that of
wood, both quantitatively and qualitatively. Therefore, it has been
considered a worthless by-product of the forest-products industry,
and has mostly been given away or sold at a low price (Lu et al.,
2006). Today, bark can be used as a medium-layer material in
board production (Pedieu et al., 2008) and as a raw material in
insulation board production (Kain et al., 2012). Ilomäki and
Melanen (2001) reported that small and medium-sized enterprises
(SMEs) in Finland, which is rich in forest resources, have shown
less effort in reducing material losses compared to the country’s
metal industry.