At Fonnov Aluminum, we produce aluminum pergola extrusion tubes to maintain their allure and functionality for many years. Typically, some fading may take place over time owing to weathering and sunlight exposure. However, you can rest assured that we have used the most effective finishes that minimize deterioration of our super durable wood finish for exterior use. Our aluminum pergola extrusion tubes maintain their beautiful look for many years. For the best results, you may want to clean the surfaces occasionally.