To make your pressure treated wood last longer, you'll want to apply water-repellant sealers annually and use a mildewcide cleaner at the first signs of any mildew growing on your wood.

How can I extend my life on treated wood?

The best way to prevent the rot is by keeping the wood dry whenever possible. In addition, you can also paint, stain or apply a liquid preservative sealer to boost the longevity of pressure-treated wood.

What is the best preservative for pressure treated wood?

• BEST OVERALL: Seal-Once Marine Premium Wood Sealer.
• BEST BANG FOR THE BUCK: Rust-Oleum Varathane Ultimate Spar Urethane Oil Based.
• PRESSURE-TREATED WOOD PICK: Thompson's WaterSeal Transparent Wood Sealer.
• BEST FOR WATERPROOFING: Thompson's WaterSeal Clear Wood Sealer.
• BEST WITH UV PROTECTION: Defy Composite Deck Sealer.

How long will pressure treated wood last outside?

Pressure treated lumber exposed to freeze-thaw and wet-dry cycles without care or maintenance will last about 9-years. With proper maintenance and treatment, the same deck will last 40 plus years. Many manufacturers warranty their treated wood for 30 years against rot and insects.

How do you keep pressure treated wood from drying out?

How to store pressure treated wood

1. Make sure your pile/piles of wood are not in a humid but a dry place;
2. Place boards and stickers of the same thickness and size on the same stack.
3. Align stickers vertically and lay them on a flat wood surface.
4. Allow enough space between stacks so the wood will have enough ventilation.

Treat Wood Yourself - How to Treat Wood Against Rot

Can I leave pressure treated wood outside?

Pressure-treated wood should be used for all outdoor projects, assuming you're using a type of wood that is not naturally repellant to insects and rot.

How long can I store pressure treated wood?

There is additional protection when lumber comes in paper-wrapped packages or has been treated with a weather protective coating. However, availability is limited and weather-protective coatings are generally effective for only about three to six months.

Is it better to stain or paint pressure treated wood?

Pressure-Treated Wood Needs Protection

Applying stain to pressure-treated wood offers an additional level of protection that homeowners don't want to be without. Stain offers another layer of much-needed protection from insects and decay, as well as from mold and mildew.

Does pressure treated wood need to be sealed?

Although treated wood is protected against decay and termite attack, the application of a water-repellent sealer to all exposed wood surfaces is recommended upon completion of construction. This sealer will help control surface checking (splitting or cracking) and provide an attractive appearance.

Should I stain pressure treated wood?

So, even though the wood is treated, it is best to apply a stain--or at least a water repellent--as soon as your project is dry enough. The first tip for working with pressure-treated lumber is to let it dry before using it.

What's better than Thompson's water seal?

According to them, these are the nine most effective wood sealers:

• Thompson's Water Seal. ...
• Rainguard Premium Wood Sealer. ...
• DEFY Crystal Clear Sealer. ...
• Anchorseal 2. ...
• Roxil Wood Protection Cream. ...
• Eco-Advance Exterior Wood Waterproofer. ...
• Ready Seal Stain and Sealer for Wood. ...
• Pure Tung Oil Natural Wood Sealer.

Can you waterproof pressure treated wood?

No, pressure-treated wood isn't waterproof. The chemical preservatives present in the wood can't protect it from decay. That means pressure-treated wood can absorb moisture and rot over time. However, you can waterproof and seal pressure-treated wood to protect it against water damage.

Is it better to stain or seal a deck?

Deck sealing will protect the wood from splitting, cracking, moisture, mildew, and rot while maintaining the color and grain of the wood. A stain will protect the wood and provides a more uniform tint or color to the wood to complement surrounding structures.

Will painting treated wood make it last longer?

By applying paint to your pressure treated wood, it will improve overall appearance. Painting your wood will not just help it look the way you would like, but it could also help the wood last longer.

How do you waterproof treated wood?

There are three surefire ways to waterproof your wood for years to come.

1. Use linseed or Tung oil to create a beautiful and protective hand-rubbed finish.
2. Seal the wood with coating of polyurethane, varnish, or lacquer.
3. Finish and waterproof wood simultaneously with a stain-sealant combo.

What happens if you don't seal pressure treated wood?

This pattern of swelling and shrinking can cause damage to the wood such as splits, checks, splinters, cracks, and other blemishes. Protection from UV rays is also necessary for insurance against fading, discoloration, and warping.

How do you keep wood from rotting?

Ideally, wood that has been treated with a preserver should also be treated with a suitable top coat such as an wood oil, wood paint or wood varnish. These top-coat products seal in the preserver and provide protection against weathering and wear from direct contact.

Should I sand pressure treated wood before staining?

Sanding pressure-treated wood is actually contraindicated because, as Sand & Stain warns, you'll end up partially removing the protective coating created by the pressure treatment, and the wood will look terrible.

Can you stain green pressure treated wood?

Can you stain treated wood right away. Yes, you can stain treated wood right away using exterior oil or water-based stain IF it was already Kiln dried at the lumber yard.

What happens if you stain pressure treated wood?

Recently, pressure treated lumber will have a high moisture content and may take several weeks to dry. Staining pressure-treated wood is ineffective if the wood is still wet. “Wet-treated wood” still contains significant moisture when purchased and may take longer to dry than other types of pressure treated wood.

Why is my pressure treated wood rotting?

Any pressure treated wood rot is usually due to a fungal issue. The fungi that cause this are very small organisms that move into the wood and feed on it over time. This causes the pressure treated wood to decay and soften which then turns into rot. All kinds of fungal issues basically create the same problem: rot.

How long will a pressure treated 6x6 last in the ground?

A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don't let the PT post come in contact with the ground.

What is the best wood preservative for ground contact?

The ideal way to protect the wood from rotting in the ground is to apply wood preservatives free of arsenic and chromium. An example of this preservative is the water-borne copper naphthenate. Then, brush it on the wood before putting it in the ground: whether pressure-treated or not.

Does paint protect wood from rotting?

Coatings that form a moisture-impervious film are effective in preventing decay if the seal where two pieces of wood are joined is kept intact. A well-maintained film of paint over the wood and good paint seals in the joints shed water, thus protecting wood by keeping it dry.

Is Thompson's water seal better than stain?

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. Sealers should last at least a year, with some lasting up to three years.