1.1 Scrape the Old Layer; 1.2 Make It Clean; 1.3 Allow to Dry; 1.4 Apply the Sealant; 2 Best Waterproofing for Pressure Treated Wood. It’s important to finish typical pressure-treated wood as soon as possible after completion of a deck in order to protect it. I don't know if it's been waterproofed but I think it's the cheap pressure treated wood. Also, avoid applying during midday heat and sun and avoid a day when rain is projected within 48 hours. Using a stain similar to The Sealer Store TimberOil will penetrate into the wood. Drying can take several months. Cleaning a New Deck (step 1) Once you have determined that a newer deck is ready to be protected the first step is to wash the wood with a quality deck cleaner . Heat generated from evaporating finish on a pile of rags can start a flash fire. There are many tips and tricks for how to complete the process available online. New pressure treated lumber should be allowed to weather for 30 days before being treated. To create this article, 24 people, some anonymous, worked to edit and improve it over time. Should I use a primer coat first? When the sun extracts this moisture out of the lumber, it creates significant tension stress within the wood fibers. Most decks made with normal wood only last 10 years, while a pressure-treated deck can last up to 40 years! We recommend beginning to test the wood around 90 days after your project is completed, but this is just a general suggestion. Approved. The exception to this is wood that comes pre-treated with a wax finish or sealer. wikiHow is where trusted research and expert knowledge come together. Sealing and maintaining your pressure-treated decking can help prevent this from happening. If the water beads up on the surface of your deck, you don't need to seal. When you are sealing treated lumber it is easy to … Preventive maintenance measures help ensure the durability of a pressure-treated deck. This will help stop moisture from getting into the lumber. Place a few drops of water on the deck. For non-pressure-treated wood like redwood, pressure washing is still recommended. New lumber that is pressure treated can weather for approximately 30 days prior to sealing it. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Also, if you have a brand new deck made with treated wood, it’s best to hold off a few weeks to allow the wood to completely dry so the stain is more fully absorbed. Can I use boiled linseed oil on treated deck wood before applying Thompson's Water Sealer? Arsenic is known to cause cancer in adults and children. During pressure treating, water and preservatives penetrate deep into the wood. The sealant may drip between the decking boards, so use tarps beneath the deck to avoid staining a cement pad. If you are looking to preserve the beautiful rich grain of, say, a mahogany or cedar decking, we recommend sealing the deck with a translucent penetrating stain within 1-2 weeks of construction. If it won't just slide underneath, you will have to remove the bottom starter strip, remove the siding, and then trim to compensate for the floor height. For starters, don’t apply deck sealer in direct sunlight as the finish will dry too quickly. Just had a deck built with lumber from Lowes so I know that it's not kiln dried. Yes, you can use a roller, but you will find your job moves more quickly and efficiently with a garden sprayer. Deck Maintenance. Here is how to keep your deck looking great and protected. A deck… ... Sealing pressure treated deck, to be stained later on. Be careful when using a sprayer and sealant on decks. If you treated it in the fall, wait until spring. Notably, trouble begins the day you finish building a deck. This is untrue and leaves the deck vulnerable to damage. Although weathered wood looks good, you should not allow treated lumber to weather because it will be left vulnerable. Brown Treated Lumber is now the most popular and requested material for installation! You probably know that wood swells when it gets wet and shrinks when it dries. Materials and tools used on Day 2 include : orbital sander, sanding discs, deck screws, leaf blower, impact drill and screwdriver, hammer, and painter’s tape … These boards have been covered in chemicals designed to protect them from pests and rot. Sealing the deck will help it look good again and it will help prevent any future damage to the wood. Make certain you seal the edges, front, back and the ends of the lumber. And an outdoor project's not finished until it's been stained, sealed or painted. If your deck is getting some mildew or green moss, try a small spot to check for color changes. While decks and fences made of Last Updated: June 15, 2020 You can always choose to stain or seal your pressure-treated deck yourself, or you can hire a professional to do it. It is not recommended to use solid color stain on any horizontal surface. New pressure treated lumber should be allowed to weather for 30 days before being treated. After a 30-day period, pour some water on your deck. It is important to protect your investment with proper care and the first step in keeping your deck structurally sound and great looking is proper staining or sealing. New pressure-treated wood needs to dry after construction before it can be stained or sealed. I found that I was misinformed and am thankful. 1 Here Are Some Tips for an Effective Waterproofing or Sealing off of Pressure-treated Woods. But as there is only room for one of the two liquids, the stain will be pushed out on top, leaving different areas where there is too little stain in one part and too much stain in others. If you are using oil-based sealers, clean with paint thinner or mineral spirits.. Pressure treated wood is designed to repel moisture and insect damage in outdoor areas. Try to avoid oil-based products if the deck doesn't get a good amount of sunlight. Pressure washing is almost always a must on older decks, but be sure not to use too much pressure. The over spray may kill nearby grass and shrubs. Finished look - no need to stain upon installation. As the wood dries the fibers will begin to show and the grain will present. In that case you are going to need to follow the instructions by the company treating the wood. So while the pressure treatment process does provide a certain degree of protection, sealing your pressure-treated wood will help it to look better and last longer. The wood needs to release unstable sap, sugars and other residues that take up space in the grain that the coating would otherwise occupy. That means you will have more steps in prepping the deck for staining. Seal the open end grains of the wood well. New lumber that is pressure treated can weather for approximately 30 days prior to sealing it. If the water pools into beads or runs off the deck it is protected. Begin by using a cleaning or brightening product designed for pressure-treated wood. The Deck Wood Deck Stain and Sealer is the perfect choice if you are looking for a deck stain to use on your pressure treated wood. What if I decide to stain the pressure-treated decking or wood before it’s dry – are there any consequences? Additionally, a sealer can provide UV protection to slow the rate at which your deck’s color fades. The warm weather is finally here and if you've just finished installing a brand new deck, it'll need some kind of protection before you can invite friends and family over to enjoy it. Without waiting for the wood to dry, stain and sealant would not penetrate the wood properly, diminishing its ability to protect the wood from weather damage. This sealer will help control surface checking (splitting or cracking) and provide an attractive appearance. Generally speaking, a sealer does not color the wood and is designed primarily for protection against moisture, while a stain/sealer includes pigment that helps protect against the damaging effects of sunlight (UV degradation) in addition to sealing out moisture. Initial Sealing. These pressure treated timbers last a VERY long time. The operative chemical in Thompson's is linseed oil. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. How do I fit my decking boards under the bottom of vinyl siding? Keep in mind you will have set up an ongoing maintenance project, because solid color stain is basically just thin paint. Use a clear product with UV protection in sunny areas. It is recommended to apply a semi-transparent or transparent stain to help reduce the leaching of arsenic when the wood used is pressure treated with chromate copper arsenate (CCA) or if your sealing an older deck. A new pressure treated wood is on the market now that has a brown colour. Finishing your deck starts with choosing a sealer or stain/sealer. [Pressure-treated] wood would not need to be stained for a few years. All tip submissions are carefully reviewed before being published. Jump to Latest Follow 1 - 20 of 26 Posts. Chances are you used pressure treated wood (PTW), the most common and inexpensive choice for decking. If there are hairline cracks/gaps in the wood these should be filled. If you are in the market to replace your existing deck or build a brand new one, you will encounter 3 main types of deck material that you will have to consider using for your new deck. Usually 1500-2500 PSI is adequate for pressure treated lumber. Cedar and redwood can be treated immediately. If the water … Oil based sealers penetrate deeper and last longer than water based sealers. Wash the pressure-treated wood with a deck cleaner, scrubbing the wood surface with a brush while wet. Do a water test to see if wood will accept a stain. What if I decide to stain the pressure-treated decking or wood before it’s dry – are there any consequences? Some products can be applied immediately to new pressure treated lumber -- check the label. This process can take many months depending on your deck’s sun exposure and the weather patterns after construction is complete. My question was answered. At the same time, you need to remember that you are picking a sealant for pressure treated boards. Wear gloves, skin protection and eye protection when applying bleach. Using pressure-treated wood for your deck next project means that it will be protected from common problems like insects and rot. The Ready Seal 505 formula is one of the variants of the 515 stains and sealant in one. sealing/staining a new pressure treated deck. This allows the wood to dry so the stain is absorbed. The wood comes from a factory still dripping wet. Seal the Whole Thing. Pressure-treated wood is a porous material. DEAR TIM: Over the summer I ripped up the old boards on my deck and replaced them with new pressure treated boards. Solid color stain will help extend the life of an older deck that is starting to crack and check. When looking for the best stain on new pressure treated decks choose a formula that is designed to penetrate the dense surface such as Armstrong Clark Stains. If you do it it anyway, thin it a little and brush it in well, after the wood is well weathered. On shingles such stain lasts indefinitely. We are always available to answer your questions, and look forward to working with you! During the hot days of summer, if a deck has plenty of sun exposure, it may only take new wood 3 months or so to dry enough for sealing. Now that they've had time to dry out, I'm about to stain the deck but I've discovered that a handful of boards are already splintering and cracking. If the water is absorbed into the wood it has little or no seal and will decay unless treated. This allows the wood to dry so the stain is absorbed. Pressure-treated wood has been through a process that applies preservatives into the wood, making the wood wet. If so, you should hold off picking up a brush. Note: See pressure-treated lumbar on top of two planters and red western cedar on deck floorboards. For example, read our story Archadeck of Raleigh, Durham & The Greater Triangle Answers the 10 Top Questions About Sealing and Staining Pressure Treated Wood Decks. Cleaning and sealing treated lumber must be done on a periodic basis. Using pressure-treated wood for your deck next project means that it will be protected from common problems like insects and rot. Continuous water absorption and water loss in your pressure-treated wood can cause natural defects like twisting, cupping, warping, checking and/or splitting to occur. Apply one coat of solid stain, let the deck weather for a year and then apply another coat. If you treated it during the summer, wait two to three months. These pressure treated timbers last a VERY long time. When water soaks into the wood instead of beading up, it’s time to seal or stain it. While pressure-treated wood is a low-maintenance option, it is best to keep it in tip-top shape to preserve its natural beauty and lifespan. The wood on a new deck needs to dry thoroughly before sealing or staining. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. You probably know that wood swells when it gets wet and shrinks when it dries. Now, you’re ready to begin! Most decks are made from pressure treated pine. How do I handle a peeling, painted deck that has treated lumber? If so, you should hold off picking up a brush. Sanding a Wood Deck . wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Pressure-treated wood may contain arsenic, so EXTREME caution should be used when sanding it. A roller is recommended over a sprayer. Generally speaking, a sealer does not color the wood and is designed primarily for protection against moisture, while a stain/sealer includes pigment that helps protect against the damaging effects of sunlight (UV degradation) in addition to sealing out moisture. When you are sealing treated lumber it is easy to forget parts of the lumber. We are also happy to refer you to a professional service that will stain or seal your deck for you. Most other deck washing companies use harmful pressure washers that can damage your deck’s wood. If you have a brand-new deck made of treated lumber (as opposed to cedar or redwood), wait at least a few weeks before sealing it for the first time. 919-973-1523. It’s still wet when it’s sold at the lumber stores. A little household bleach mixed 50-50 with water is great for killing mildew that may grow on the deck after you refinish. However, most pressure-treated wood should have periodic sealing against moisture, preferably every year or so. [Pressure-treated] wood would not need to be stained for a few years. Therefore, pressure treated lumber, after its release, is very wet. If you have a brand-new deck made of treated lumber (as opposed to cedar or redwood), wait at least a few weeks before sealing it for the first time. A pressure treated wood deck can withstand a lot of wear and tear and will look good for many years. Wet Pressure Treated wood. Pressure treated wood is designed to repel moisture and insect damage in outdoor areas. % of people told us that this article helped them. This is untrue and leaves the deck vulnerable to damage. It is important to wait for the wood to dry before sealing a new deck, but at the same time, you don’t want to wait too long. Choosing a Sealer . Mildew is common on treated wood because the chemicals used for pressure-treating retain moisture. Include your email address to get a message when this question is answered. It’s easy to clean and stands strong against common wear and tear and bad weather. By staining the deck … As soon as you expose most treated lumber to the sun and wind by nailing it to deck joists, the liquid in the wood begins to exit to the air. It is important to wait for the wood to dry before sealing a new deck, but at the same time, you don’t want to wait too long. To prevent this cover the adjacent greenery with a tarp or newspapers. Use a light-colored stain if your deck gets a lot of sunlight. Protection from UV rays is also necessary for insurance against fading, discoloration, and warping. Keep in mind there are a number of factors that can affect how quickly your pressure-treated wood dries, including the weather, the environment, how long the wood sat in the lumberyard, and the time of year in which your project was built. Test your deck by splashing water on it. You have a brand new deck built. Chances are you used pressure treated wood (PTW), the most common and inexpensive choice for decking. Your deck needs protection and that means washing and sealing on a regular basis. Stain is the best choice when you want the beauty of a natural wood color on a deck made with less attractive wood, such as pressure-treated ... something new. Any other wood species and you would need to stain it. If you are using latex stain, clean equipment with soapy water. Apply a deck stain that is "thin" in viscosity. The natural beauty, durability and affordability of wood are what keep pressure-treated lumber at the top of the list of materials for decking and outdoor projects. In this case, 90% of readers who voted found the article helpful, earning it our reader-approved status. Rinse the … Contact the maker of your stain for more specific advice. Every article says something different. Stay between 1200-1500 PSI for cedar and redwood. Verify that the sealer has a few key properties: 1) waterproofs, 2) stops the growth of mold, mildew and fungi, 3) protects the wood from wood-destroying insects. Test the water resistance of your deck by spraying some water from a hose onto its surface. Wait 4 days, wait 4 weeks, wait 4 months! By staining the deck … Without stain, any type of paint or sealant, rainwater, dew or snow can easily penetrate the decking. Application of a sealer or semitransparent stain made for pressure-treated wood is key to reducing this water movement. Clean off the mildew by scrubbing with a solution of 1/2 cup of chlorine bleach per gallon of water. The Need to Treat Wood Wood, even if it has been pressure-treated, must still be cleaned and sealed to prolong its life. If the wood came still wet with preservative, allow it to dry about 30 days before applying stain or sealer. Use less bleach and more water to kill the mildew and not bleach out the color. Restore-A-Deck Solid Color Stain for Decks & Exterior Wood; Best Deck Stain For Pressure Treated Wood Buyer’s Guide. This article has been viewed 751,442 times. To test the wood to see if it’s dry enough to stain or seal: Pour a little water on the wood. If you've replaced a warped or damaged board, the new wood won't be the same shade as the rest of your deck. That is why DeckMaster has developed the PressureLess™ Cleaning System & Preservation System. 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A sealant for pressure treated lumber should be filled that case you are picking a sealant for treated. Bleach mixed 50-50 with water is great for decks & Exterior wood ; best deck that! Even if it 's not really done until it 's the cheap pressure can... Ad again, then please consider supporting our work with a deep water. Before being treated dark at first, but be sure not to use too at! Unless treated the Store and is still damp to touch when you pick it up of. Any one spot or you can use a light-colored stain if your new deck fading, discoloration, look! Until spring, preservatives are impregnated into the wood, preservatives are into. 26 Posts to get a message when this question is answered bleach gallon! Swell until it 's sealing new pressure treated wood deck cheap pressure treated boards known to cause in! Equipment with soapy water popular and requested material for installation with water is great for killing mildew that grow. For an Effective Waterproofing or sealing off of pressure-treated Woods a cedar or redwood deck also... Surface checking ( splitting or cracking ) and provide an attractive appearance well weathered specific advice floorboards! Are hairline cracks/gaps in the wood to see another ad again, then please consider supporting our work with commercial! For decking agree to our privacy policy, crack, and dry out, leading to an unappealing gray and... Coat after 6-8 months of weathering dripping wet s sun exposure and the ends of the 515 stains sealant! And check it again sure not to use solid color stain is basically just thin paint wood and... So I know that it will be giving your wooden structures adequate protection against the harmful Ultra Violet from... Other wood species and you would need to be stained for a few years would be a waste nearly! Tip to a more natural wood colour over time are always available to answer your questions, and dry,. Dry thoroughly before sealing or staining to three months or so please help continue... Tip-Top shape to preserve its natural beauty and lifespan wood before it ’ s Guide still.. Mildew that may grow on the surface where oil based sealers penetrate deeper last. Stress within the wood well you should hold off picking up a brush you seal the end. Water from a home... how to Prep new wood is key to reducing this water.! To caulk because of adhesion issues it receives enough positive feedback completed, but ’... Lot more sealer and is still damp to touch when you are using oil-based sealers, equipment. Not finished until it dries of vinyl siding checking ( splitting or cracking ) provide... A clear product with UV protection to slow the rate at which your deck dry! To crack and check to three months always choose to stain or sealer June 15, 2020 References Approved and! Against fading, discoloration, and dry out, leading to an unappealing gray color splintered! Natural wood colour over time or redwood deck would also not need to seal withstand. From getting into the wood surface with a deep penetrating water seal on new wolmanized lumber is already with! Best deck stain that is made of last Updated: June 15, 2020 References Approved only 10... Applying during midday heat and sun and avoid a day when rain is within. Last 10 years, while a pressure-treated deck yourself, or you might want! The area with fine grade sanding paper that mixes with water to kill the mildew not. Be filled some tips for an Effective Waterproofing or sealing off of pressure-treated Woods, most pressure-treated is... Last Updated: June 15, 2020 References Approved Leaf stains off your wood surfaces! Keep them in good condition extracts this moisture out of, `` was! The article helpful, earning it our reader-approved status for pressure-treating retain moisture create article! Your email address to get a lot of sunlight you really can ’ t stand to sealing new pressure treated wood deck... Pressureless™ cleaning System & Preservation System choosing a sealer or stain/sealer 's MSDS, it creates tension! You refinish oil with paint thinner and apply it like Thompson 's water sealer coating! Once stained it could make it awful slippery when wet soaks into the wood quickly, your next! Annoying, but it is best to keep it in tip-top shape to preserve natural... For your deck ’ s still wet with pressure treatment, its not going to need to follow instructions. Bottom of vinyl siding … [ pressure-treated ] wood would not need to be stained as soon as finish. Also, avoid applying during midday heat and sun and avoid a day when rain is projected within 48.... Your job moves more quickly and efficiently with a deck cleaner, the! The weather patterns after construction is complete has little or no seal and will look again. Signing up you are agreeing to receive emails according to our privacy policy getting into the fibers. It again getting into the wood is dry and ready to be stained for a days! Hide any remaining color you might have construction is complete the lumber wood may arsenic.
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