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How to Weatherproof a Deck, Continued
Learn how to apply a waterproofing wood sealer to a deck. Step-by-step instructions and video demonstrate a sealer's protection against rain damage.
Print these instructions Tools you will need
Thompson's Water Seal enables wood to repel moisture Wood Sealers are available in tinted and clear varieties Applying sealer with a pump sprayer

A waterproofing sealer enables wood to repel moisture. Wood protectors like this one also have UV filters that shield wood from damaging ultraviolet light.

Wood protectors can be either clear or tinted. Tinted sealers can disguise surface imperfections and create a deeper, richer look. The fastest way to apply a sealer is with a pump sprayer.
     
Applying sealer with a pump sprayer When using a pump sprayer it is important to back brush Applying wood sealer with a long handled pad
Spray small sections at a time, keeping the sprayer tip about one to two feet from the surface. When spraying, it's also important to back brush the waterproofer, in order to work it well into the surface. Another way to apply wood sealer is with a painting pad. Pour the wood protector into a tray and dip a long-handled painting pad into the sealer. Be sure to press out the excess.
     
Applying the wood protector and sealer with a painting pad in long even strokes Sealed and protected decking Untreated versus treated decking
Apply the material with long, even, overlapping strokes. This technique saves time by allowing you to apply the sealer and backbrush in one operation. To keep your deck looking its best, sweep it and hose it off regularly. If it gets really dirty, you can clean it with some soap or detergent. Depending on how much sun your decking gets, you should reapply a coat of waterproofer every year or two. In this side-by-side comparison, it's easy to see the difference between an untreated deck and one that is sealed, tinted and protected from sun and rain.
     
     
   

Other Deck-Related Home Improvement Projects You Can Do Yourself
How to Unclog a Downspout & Repair a Deck  
How to Replace an Old Deck with Composite Decking  
How to Replace Rotten Decking  
How to Build a Porch Stairway  

The Home Depot GMC Thompsons WaterSeal Minwax Scotts