Get matched with top deck staining pros in Plum City, WI

Yes, it is generally a very good idea to seal your deck after pressure washing. Power washing removes not only dirt and debris but also a thin layer of wood, leaving the surface exposed and more susceptible to weathering. Sealing is almost always needed after this process. After a general cleaning, sealing isn't automatically necessary if the existing sealant is still intact. You can test the surface by placing a few drops of water on it. If the water beads up, the sealant is working. If it soaks into the wood, it's time to apply a new sealant. If it has been a few years, it's wise to remove the old sealant, wash the deck, and reseal for maximum protection.

Ultimately, overapplication of stain can compromise the deck's appearance, durability, and longevity. It may result in an uneven finish, with excess stain pooling, dripping, or drying into thick patches. It can also obscure the wood's natural grain and texture, detracting from the desired aesthetic. Moreover, excessive staining may not fully penetrate the wood, leading to poor adhesion and premature wear. Additionally, thick layers of stain are prone to peeling, cracking, and blistering as they struggle to bond with the surface. 

You’ll want to avoid excessively hot or humid conditions, so it’s best to apply your stain in late spring to early fall. It's also important to watch the weather forecast and aim for days when there isn’t rain expected for at least three days. For new decks, allow the wood to season beforehand for at least four to eight weeks.

You have a couple of options when choosing a durable pool deck coating. Epoxy is common and offers excellent stain and water resistance. Epoxy also withstands high temperatures and UV lighting, making it ideal for sunny spots. You can also add a coating to cement, which significantly lowers the temperature of the concrete, is environmentally safe, and makes cleanup a breeze.