This study examines the effects of a 15-month natural weathering test (Uzungol and Hidirnebi Plateaus) on wood materials. In this study, samples of oriental beech (Fagus Orientalis L.) and Scots pine (Pinus sylvestris L.) with six different protection methods were used. The roughness increase, colour and visual-macroscopic changes occurred on the surfaces of treated and untreated wood samples, exposed to outdoor conditions, were compared. The impregnation and heat-treated oriental beech and Scots pine were coated with acrylic resin containing UV absorbance. The results showed that the coating system increased the visual and physical performance of wood samples in outdoor conditions.