The answer to 'deck yellowing' is that the most common causes are sun exposure, weathering, and improper maintenance. Over time, the wood on decks can start to turn yellow or discolor due to oxidation and UV damage. This can be especially noticeable on decks made of cedar, redwood, or other softwoods.
The symptoms of a yellowing deck include a dull, faded appearance, loss of the original wood color, and a rough or fuzzy texture. In some cases, the wood may also start to crack or splinter. Fortunately, there are several solutions to address deck yellowing, ranging from DIY treatments to professional restoration.