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KILN DRYING PROBLEMS AND ISSUES IN CANADA

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KILN DRYING PROBLEMS AND ISSUES IN CANADA ( kiln-drying-problems-and-issues-in-canada )

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is not clear that they adequately understand all the drying cost components as mentioned by Leger et al. (2002) in a study of the softwood lumber industry in the Province of Quebec. Leger et al. (2002) also found that the ability to monitor moisture content was a serious concern. This is in accordance with the results of the present study, where this kiln control issue was considered to be important. In summary, several drying process and kiln control issues were seen as being important for Canadian wood products companies. Optimizing kiln schedules and monitoring and adjusting moisture content are crucial issues in terms of balancing time and product quality considerations. Moreover, the nature of the majority of the companies can shed some light about the observed results. It was found that 58.1% of respondents were primary wood products producers and that 76.4% dried softwoods. In operations that dry predominantly softwoods for commodity products, the main focus is on production volumes. Therefore, it was expected that those companies would have more serious concerns about drying process issues, than product quality ones. Finally, it is recommended that future research be focused on those drying process and kiln control issues that cause the most serious concerns to the Canadian wood products industry. 5.1.3. Knowledge Level and Troubleshooting Assistance Kiln operators appeared to be more knowledgeable (mean value 3.4) about kiln drying issues compared to equipment suppliers (mean value 3.0), distributors (mean value 2.6), sales personnel and customers (both with a mean value of 2.5). Although the difference was statistically significant (Kruskal-Wallis test at an alpha level of 0.05), all groups investigated appeared to be knowledgeable. However, the relatively high knowledge level of kiln operators may not be sufficient to ensure that drying problems will be negligible. Holmes (1989) argues that, in cases where kiln operators have adequate drying knowledge, time constraints and lack of resources (not properly operating kilns or monitoring equipment) may prevent them from achieving high quality results. Considering that the present study simply enquired kiln operators about their knowledge level, it would be interesting to conduct further research on this topic by 86

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