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Staining or sealing a cedar deck or fence is highly recommended to extend its lifespan and protect it from the elements. While cedar is naturally resistant to mold and mildew, it is not impervious to damage from moisture, sun exposure, splintering, fading, and rot over time. Applying a protective finish creates a shield that preserves the wood's strength and appearance, potentially extending its life by five to 10 years.

When choosing a finish, it's helpful to understand the difference between a sealer and a stain. A sealer sits on top of the wood, whereas a combination stain and sealer soaks into the top layer. Because it penetrates the wood, a stain generally offers better protection against UV damage and rot and lasts significantly longer. For the best results that also preserve the wood's natural color, consider using a near-translucent stain.

To maintain protection, plan on reapplying the stain or sealer every two to three years, either as a DIY project or by hiring a professional.

Manufacturers use a different process and formula for exterior paint versus interior. The exterior formula has to withstand elements like temperature, UV lighting, moisture, wind, and debris. Interior paint doesn’t need to be as tough, only exposed to dust, scratches, dents, scuff marks, and the like.

Maintain your wattle fence by inspecting it at least twice per year for loose weaving and degrading branches. Replace any seriously degraded sections, ensure water drains properly around the posts, and trim any sprouting branches if you used green wood. If you notice the weave loosening, you can often tighten it by gently pushing down on the top branches. You can also apply a natural wood preservative every two to three years to extend the fence's lifespan.

Applying a sealer or topcoat after staining wood is highly recommended, though not always strictly required. A sealer protects the wood from moisture, UV rays, and weather-related issues, which is especially important for outdoor surfaces like decks and fences. It also enhances the stain's durability, prevents fading over time, and gives the wood a cleaner, more professional-looking finish. For some indoor applications, a sealer may not be necessary, depending on the type of stain used and the level of protection needed. It's always best to check the stain manufacturer's recommendations and consider the wood's intended use and exposure when deciding whether to apply a sealer.