Result of 6th Year Inspection of Preservative-treated Canadian Species in Korea: Thumbs-Up
Dr. Paul Morris, Research Leader of FPInnovations’ Durability and Building Enclosure Group, visited Korea to inspect the performance of two Canadian wood species, White Spruce and W. Hemlock, treated with ACQ and CA to CSA O80 Standards at the field testing site in Jinju city in the southern part of the Korean peninsula, with Dr. Jong Bum Ra, Professor of Gyeongnam National University of Science and Technology’s Department of Indoor Materials Engineering on March 16, 2017.
The joint inspection revealed that all the pressure-treated specimens were in very good condition both in ground contact and above ground and there were no sign of deterioration either by termites attack or decay fungus after more than 6 years, while many untreated controls failed and had to be replaced every two or three of years.
The result of the inspection strongly suggests that the performance of Spruce and Hemlock treated to the Canadian Standards will be as good in even longer term and even the current results warrants revising or developing new wood preservation standards in Korea. It has been said that Korean wood preservation standards were written from assortments of overseas standards in the absence of local testing data. However, we now have the data for the two species.