Accelerated Testing of Window Joinery made from Eucalypts
This project aimed to improve the durability of ash eucalypts as window joinery through preservative treatment, by demonstrating improved performance compared to untreated windows, and similar performance to light organic solvent preservative (LOSP) treated Shorea spp. (meranti) windows. In addition, the performance of the latest azole-containing LOSP formulation when used to protect Shorea spp. was assessed, as was the likelihood that the various preservative treatments would protect eucalypt sapwood from lyctine borer.
The results demonstrate that timber windows can provide service lives in excess of 25 years provided regular maintenance is carried out. Preservative treatment of window components and sealing the end grain within joints prior to assembly, are measures that can increase the service life of windows well beyond 25 years.