Quick Answer: Do I Need To Clean My Deck Before Sealing?

Can I leave my deck untreated?

It may be many years before an untreated deck becomes completely unusable.

However, a deck that is properly sealed and maintained with a yearly maintenance program consistently outlive a deck that is left to its own devices by a significant margin..

How do you waterproof under a deck?

3 Ways to Keep Dry Under Your DeckOne option is to cover the deck boards with a watertight membrane. … If you’re building a new deck or replacing your deck boards, you can use a system like Trex RainEscape, which installs in the joist spaces before you install the decking.More items…

Should I stain or seal my deck?

Many deck companies recommend using a combination stain/sealer product, which is basically a sealer with pigment added. The advantage of this, they say, is the sealer provides additional protection against water and weather damage, while the stain helps reduce fading from UV rays.

How long after power washing can you seal a deck?

24 to 36 hoursAfter completing the deck power washing, wait 24 to 36 hours before applying sealer. If the weather is cool or humid, wait 48 to 72 hours. The deck must be thoroughly dry to ensure deep penetration of the sealer.

What is the best wood deck sealer?

Our Top PicksBEST OVERALL: SEAL-ONCE MARINE Penetrating Wood Sealer. … EASIEST APPLICATION: Eco Advance Exterior Wood Water Repellent. … BEST VALUE: Olympic Stain Smartguard Concentrated Sealant. … LONGEST-LASTING SEAL: Olympic Stain Maximum Waterproofing Sealant.

Is it too late to seal my deck?

As a general rule, expect to wait approximately 30 days before scheduling professional deck sealing. However, in the case of intense wood grains such as cedar and mahogany, you may want to seal the deck earlier — perhaps within one or two weeks.

How do you clean deck before sealing?

Prep Sealing 101:Clear the Deck. Clear all furniture whether it is: table, chairs, plants, pots, grills. … Clear Hard-to-Get Debris. Remove ALL debris including: dirt, grim, sticks, mud, fungus, stains, bird poop, chipped paint and more. … Remove Pesky Mildew/Algae. … Sand Rough Spots. … Pressure Wash. … Final Rinse. … Dry Time.

How often should you reseal your deck?

For most decks, sealing once each year is a good rule of thumb. Depending on the condition of your deck this can be adjusted, but keep in mind that you should never go beyond three years maximum before re-sealing and staining.

How many coats of stain do you put on a deck?

2 coatsThe general rule of thumb is to apply only as much deck stain as the wood can absorb. Typically this will be 2 coats, unless your dealing with extremely dense hardwoods which may only be able to absorb 1 coat of wood stain.

How long does Thompson’s Water Seal last?

10 yearsIf applied correctly, Water Seal will last up to 10 years.

Do you need to clean a new deck before sealing?

DO repair, wash, and sand your deck before sealing. Allow to dry for 24 hours, then sand the surface with between a 60 to 150 grit sandpaper or sanding disk. … Even a brand new deck will need at least a brief washing and drying to banish any dirt and grime accumulated during the initial 30 drying period.

Does staining a deck seal it?

Most of the time, stains also contain a protective sealant. It’s a good idea, though, to re-seal your deck (or check that it needs to be re-sealed) once a year. Water-based stains can adhere to water or oil-based coatings already present on the wooden surface.

Is it better to sand or power wash a deck?

Once dry, these wood fibers can often remain raised and may cause splinters. For this reason, you should plan on sanding your wood deck after power washing and before staining and sealing. … Any of these will adequately sand your deck if used properly.

Should you put a sealer over stain?

Applying a topcoat sealer is not required, but a finish protects the stained wood from scratches and keeps it from fading over time. If applying a polyurethane finish with a brush, apply one to two coats.

What if it rains after sealing deck?

If it rains within 48 hours after you apply the stain, the water will soak into the wood pores and try to displace the stain. This will result in a splotchy surface rather than an even tone. If it rains right after you apply the stain, the stain will peel and flake off.

Can I put Thompsons Water Seal over stain?

Answer: Q: Do I need to apply a clear waterproofer over my stain? Not with Thompson’s® WaterSeal® exterior stains. They are specially formulated so you get unsurpassed waterproofing protection and beautiful color at the same time.

Should you pressure wash deck before staining?

Power washing a deck is a quick and efficient way to get it ready for painting or staining, but it isn’t a necessary prerequisite. In fact, in some situations, it isn’t even a good idea, because power washing can chip and gouge wood.