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9.9 Timber Preservation
Authors: TriptiPublication: NZIF Forestry Handbook, Volume Section 9 – Utilisation of forest products, pp 9, Dec 2023
Publisher: New Zealand Institute of Forestry
Abstract: Timber from many tree species including Radiata pine (the main plantation forest species in New Zealand) is not naturally durable and therefore requires application of chemical or other means of modification (chemical, non-biocidal or thermal) to extend and preserve the life of timber products in service. Historically, New Zealand has been recognised as a world leader in the field of wood preservation. This stems largely from the fact that for over 30 years, from 1955 to 1987, timber preservation in New Zealand was undertaken through regulations established in 1955 by an Act of Parliament. This established the Timber Preservation Authority (TPA), which had the sole right to publish treatment specifications, register timber treatment plants, and to revoke registration for serious transgression of the regulations.