Seal and Protect Your Deck
Learn how to seal and protect your deck so it looks great and lasts as long as possible.
Choosing Deck Sealer
When choosing a sealer, make sure the product is waterproof. Some products are designed to let the wood gray or gradually lose color, while others will preserve the original wood color.
Preparing to Seal the Deck
Before you can apply your sealer, you will need to thoroughly clean the deck surface. For new wood, sweep away any dust or debris that may have settled on your deck. Wipe the wood with a wet rag and let it air dry.
Power Washing the Deck
If your wood has been sitting unsealed for some time you will want to use a power washer or pressure washer to remove the dirt and grime. Always wear eye protection when using a pressure washer.
Connect the pressure washer to a garden hose. Then turn on the water and the machine.
Pull the trigger with your finger to spray the water. Never point the nozzle at a person.
Power washers can be rented, but you may consider purchasing one as they are very useful for a variety of cleaning jobs. Be sure to angle the washer under the railings to remove the hard-to-reach dirt.
Drying the Deck
Let your deck dry completely before applying the sealer. Also, check the weather reports and make sure it isn't going to rain for 48 hours after you are finished or the temperature won't get below the required 40 degrees Fahrenheit.
Applying the Deck Sealer
You will need a sprayer that holds several gallons of liquid. This sprayer holds 5 gallons and is fairly easy to carry even when full. Wear eye protection while using this toxic material.
Pour the sealer into the sprayer. Pump the handle to build pressure in the sprayer.
Now evenly coat the entire surface of the deck. Allow the sealer to dry for 2 days before using the deck.
Maintaining the Sealed Deck
You will need to repeat this process every few years depending on the effectiveness of the sealer you purchased. Some products claim to last 7 years or more.
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