In this study, it was aimed to discuss a method to evaluate the reaction-to-fire performance of fire-retardant-treated wood which was used as building facades taking an aging deterioration into consideration. Accelerated weathering test method and the reaction-to-fire performance of fire-retardant treated wood were examined. As a result of the accelerated weathering test, it was confirmed that the initial performance was deteriorated in the Reaction-to-fire test. In the contrary, regarding the façade tests, specimens evaluated by accelerated weathering test showed a little effect.
