Exposure to ultraviolet light initiates chemical changes in the wood’s natural tannins and pigments. This process, often called 'patina' or 'sun-fading,' varies by species; for instance, American Cherry tends to darken to a deep reddish-brown, while some light woods may bleach. Finishes with UV inhibitors can slow this reaction but cannot stop it entirely. Furniture and area rugs can block light, creating uneven color changes on the floor. To mitigate this, consider UV-filtering window treatments to protect the wood from prolonged direct sun exposure.
Ask an ExpertHardwood
How does UV light affect different wood species?
UV light causes photochemical reactions in wood, leading to color changes such as darkening or lightening. Species like cherry or exotic woods are often more photosensitive, changing color significantly over time, while others remain relatively stable.