How To Reseal Your Deck

The deck is supposed to be resealed yearly to keep its integrity and functionality. If you fail to reseal it, water will penetrate the wood and encourage mildew growth and rotting. Resealing is a rather simple procedure, albeit time-consuming. In fact, depending on the size of your deck, you need to have at least an entire day to complete it. It is manageable nonetheless. Here’s how you can do it.

  • Start with a clean deck. First, you need to move all the furniture and potted plants from the deck. Place them in a safe location. The shrubs and plants surrounding the deck, meanwhile, should be covered with plastic. When the deck is already clean, you can begin sweeping off dust and dirt. You can use a deck cleaner if your deck has stubborn dirt and stains. Just make sure to carefully read the manufacturer’s instructions. Put a good amount of cleaner on the deck and scrub one area at a time until the entire deck is cleaned. Rinse it after using a garden hose or a power washer. If the dirt and stains remain, apply more cleaner and scrub the deck a little harder. Rinse again and let it dry for several days.
  • Sand the deck. Marks and flaws on the deck can be usually removed by sanding. Using an 80-grit sander, gently and lightly sand the deck, concentrating on the problematic areas. Make sure to use a mask to avoid inhaling sawdust. When done, sweep away all sawdust and particles.
  • Apply sealer. You need to begin by stirring the sealer. Then moisten your paint roller with the sealer and run it along the deck, starting from one side all the way to the opposite side. Remember to make a thin coat and to evenly spread the sealer to avoid having puddles. You can apply a second coat after allowing the first coat to completely dry. This is usually done a day after. To seal the hard-to-reach parts, you need to use a paint brush.
  • Allow the sealer to dry. Leave the sealer for around 12 hours to allow it to dry. Because the weather plays a great role in drying the deck, it is important that you do the resealing on a week that is expected to be bright and sunny. Don’t apply sealer when the sun is intense, though, as this can dry the sealer much faster and won’t allow the sealer to penetrate the wood.
  • Bring the items back. You can now move the furniture and potted plants back to the deck. The plastic that covers the shrubs and plants should then be rinsed and removed. As you wrap up, you also need to clean your paint roller and brush. Choose a cleaner that will work best on the type of sealer that you used.

Remember to use the appropriate clothes when resealing a deck. Wear goggles, gloves, and a pair of working shoes as well. Because this is a time-consuming task, you might want to have an assistant.


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