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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.

Exterior paints contain more volatile organic compounds, or VOCs, making them dangerous when used indoors. Without the free ventilation of the great outdoors, it can take longer for the fumes to dissipate than interior paint. While you may notice the smell lessening more quickly, you should be wary of paint fumes inside for 48 to 72 hours after it dries.

To make sure the paint won’t bubble as you apply it, make sure to paint on a day that’s cooler than 85 degrees Fahrenheit. When the temperature is too high, the paint won’t dry evenly, which can result in bubbles forming on the surface. Another way to prevent paint from bubbling is to clean the walls, apply primer, and let everything dry completely before you begin.

The best temperature to paint a pool deck is between 50 and 90 degrees Fahrenheit, because many paints and sealers require temperatures warm enough for the chemical reaction to take place for proper curing. The paint should not be allowed to freeze, and temperatures above 90 degrees can cause the paint to dry too quickly, also preventing the chemical reaction from following through to completion.