deck discoloration

Dealing with Deck Discoloration

Outdoor wooden decks are constantly exposed to nature’s elements, including sun, rain, wind, fungi, mold, dust, pollen, and dirt. Sunlight is the biggest culprit for deck discoloration. In short, the sun’s ultraviolet rays can break down the wood’s integrity, eventually leading to a gradual shift from its original pristine color to gray hues. Over time this leads to changes in the deck’s appearance, which includes Fortunately, some things can be done to prevent or address deck discoloration.

Inspect and Make Repairs

The first step in tackling discoloration is to inspect the deck and make any necessary repairs. Carefully look for any stress signs, rot, loose or buckling boards, missing or damaged hardware, or other issues. Also, check under the deck for any structural damage or problems. Make a list of any problems and begin to make deck repairs.

Clean Surfaces

Pressure washing is the best way to clean a deck. However, while it may appear simple, it requires significant skill to do it correctly. Moreover, it is also easy to unwittingly cost expensive damage. Consider hiring professionals, such as Deck Doc, to clean the discolored deck to ensure the work is done correctly.

Apply Stain

After repairs have been made and the deck has been adequately cleaned, it’s time to apply stain. The stain will serve as a protective finish. Experts recommend clear or transparent stains for new wood and semitransparent stains for older, discolored decks. This stain will still reveal the grain while giving the deck service a lovely color. Moreover, it offers additional protection from harsh weather elements and, unlike paint, it will need peel or chip.


Some may want to apply paint to their deck. Unlike sealers, the paint will not penetrate the wood. Instead, it will provide good UV protection. Painting a deck means that no natural wood grain will be visible. It will give a uniform appearance. However, the paint will chip and peel over time, requiring stripping and reapplication.

Apply Sealant

As a final step, apply a high-quality, water-blocking sealant. It will provide additional protection again ultraviolet light and extend the wood’s life. Deck sealants are usually transparent finish that helps to keep moisture and water from penetrating the wood. Unlike pigmented stains, sealants do not offer protection from the sun’s UV rays.

While discolor, graying wooden decks are unsightly. There are steps that can be taken to restore its former beauty. Some homeowners and businesses choose to hire a company, like Deck Doc, to clean, stain and restore their deck.

About Deck Doc

With over 20 years of experience, Deck Doc provides top-quality deck cleaning, sealing, staining, restoration, and maintenance services for residential and commercial customers throughout Chicagoland. Call 847-979-9299 to schedule your free, no-obligation estimate.