Revive Weathered Pressure Treated Wood with a Paint Transformation
Over time, the pressure treated lumber used for your deck, fence, or other outdoor structures can start to look faded and worn. The wood takes on a weathered gray hue as it's exposed to the elements year after year. Though this is natural, it gives the wood an aged, tired appearance that makes your backyard projects seem past their prime.
Luckily, there's an easy solution for renewing weathered wood and protecting it for the long run. With proper preparation and a fresh coat of high-quality exterior paint, you can dramatically transform the look of your pressure treated lumber. The result is wood that appears rich, vibrant, and looks brand new again.
Choosing the Right Exterior Paint
For the best results, it's crucial to select exterior paints specially formulated for use on pressure treated lumber. Look for latex paints labeled as suitable for decks, fences, and exterior wood. Avoid using interior paints on outdoor projects.
Top-tier exterior paint provides superior adhesion, UV resistance, and protection from moisture. Premium latex formulations are also more flexible, allowing the paint to expand and contract with the wood through temperature changes without cracking or peeling.
Oil-Based vs. Latex Paint for Pressure Treated Wood
Though oil-based paints were once the norm for exterior wood, latex options have surpassed them for ease of application and performance. The acrylic resins in latex paint offer excellent adhesion to pressure treated lumber along with longevity and color retention.
Latex dries more quickly than oil-based paint, can be applied in lower temperatures, and cleans up easily with soap and water. It's the ideal choice for DIYers painting pressure treated projects.
Inspecting for Surface Defects
Before painting, thoroughly examine the pressure treated wood for any cracks, warping, knots, or other defects. Pay extra attention when using Southern yellow pine, which is commonly used for pressure treated lumber but may have more knots and inconsistencies than other wood species.
Replace any boards that are badly cracked or warped, as these flaws will likely worsen over time even with paint. Eliminating significant surface defects ensures you'll achieve a smooth, uniform painted finish.
Proper Surface Prep and Priming
Even properly dried pressure treated lumber needs some prep work before painting. Start by washing the wood using a brush and detergent solution to remove dirt, debris, and other contaminants. Rinse thoroughly.
Once dry, sand any rough areas with fine 220 grit sandpaper to smooth the surface. Then, apply a high-quality oil-based exterior primer to seal the wood and provide extra adhesion for the paint. Allow the primer to fully dry before painting.
Applying Paint with Proper Technique
Use a premium nylon or polyester brush to "cut-in" around rails, posts, edges, and corners. This prep allows you to then quickly roll larger flat sections. Applying paint in thin, even coats prevents drips and runs.
Allow proper drying time between coats as specified by the manufacturer - usually 24-48 hours. Additional coats build added protection and make the finish more uniform. Three coats are ideal for maximum durability.
Once painted, avoid heavy use of the pressure treated wood for a few days to allow the paint to fully cure. Annually inspect for any cracked or peeling paint and address these areas promptly. Clean dirt and mildew as needed.
Plan to re-coat painted pressure treated lumber every 3-5 years. Pay attention to high-traffic spots like stairs and railings that may need paint touched up more frequently. With proper prep and application, your painted wood will maintain its revitalized appearance year after year.
Don't let faded, weathered wood make your backyard projects look worn out. Renew your pressure treated lumber with a fresh coat of protective paint. The transformation is stunning and will have your fence, deck, or other structures looking like new again with just a little time and effort.