Can YellaWood pressure treated wood be used in gardens? Yes. Scientific studies have proven that any copper that may migrate from the treated wood becomes biologically inactive, thus causing no eco-toxic or other environmental impacts.
If you have to use wood posts, I believe AC2 treatment is rated for underground/water use. Regular treated wood is not. We have used 2" galvanized pipe for pier posts, and they have been in the lake since the mid 1970's.
Ground-Contact treated wood provides long-term protection against termite and fungal decay attack and can be used in most outdoor applications. During the pressure-treating process, the wood preservatives are forced deep into the wood.
Choose the best pilings you can afford. Pressure treated wood is the most cost effective to use as posts for your dock. Most professional dock builders believe that round posts are much easier to install and last longer because the wood isn't cut off.
SBX/DOT and Zinc Borate treated woods are less corrosive than CCA-C treated wood - as a result the retention level of these woods is not of much concern and standard G90 galvanized connectors can be used.
10) Pressure treated lumber is resistant to attack by termites and carpenter ants. This assumption is half true. Entomological studies have shown that arsenical treatments like the CCA commonly used in pressure treated lumber does repel and can kill termites. Termites that eat treated lumber will die.
According to Building Products Plus, a timber-supply company, pressured-treated lumber is necessary when constructing a dock in a freshwater or saltwater location. However, harmful chemicals can enter the water supply from the chemicals used in making pressure-treated lumber, so a builder must be careful in choosing it.
The sawdust from pressure-treated wood can be an irritant to the nose, eyes, and skin. Use of a dust mask and eye protection is highly recommended. Prevent contact with the skin as much as possible.
For each specific type of wood preservative, recommendations are provided for minimizing the risks to aquatic life. In summary, the use of pressure treated wood in water is unlikely to have significant impacts on aquatic life. However, wood treated with pentachlorophenol should not be used in salt water.
2 Wolmanized wood is poles, piles, timbers, posts, or plywood that is pressure-treatedwith CCA preservative to provide structural protection from termites and fungal decay. For 70 years, CCA-treated wood has been specified in a wide variety
Wood for any outdoor project should be pressure-treated; wood for indoor projects should be left as is. The sawdust from pressure-treated wood is an irritant to the eyes, skin, and nose. Some low level leaching (the chemical preservative leaking from the wood) can also be a problem with indoor projects.
Does it have to be pre-treated before it can stay preserved underwater? Experiments I would be curious to know the result of: If I put a piece of wood in a bucket, put a rock on it to stop it from floating, filled the bucket with water and came back to the bucket in a month's/year’s time, would the wood have decayed?
For freshwater, use a minimum of .60 pcf pressure treated wood and use 2.5 pcf treated wood for building a pier or dock in saltwater. Your dock and pier hardware should be stainless steel, galvanized steel, or specially coated for marine environments.
Treat the wood for wood boring insects common to your area (ie termites, powder post beetles, carpenter ants...). A good, historical method for this is the use of creosote. It is used mainly to weatherproof the post, but it is also great for repelling insects. Aside from this, there are many other modern chemicals used for bug-proofing posts.
Treated wood can be safely used for animal enclosures such as bird feeders, livestock fencing or fish ponds. But it’s not recommended to use treated lumber where preservatives come into direct contact with food.
Pressure treated is guaranteed for 30 years in direct water contact, and mine has been in for 16 years. If it fell apart tomorrow I'd not worry about any warranty, and rebuild just as before. I don't remember the brand of lumber used anyway, and I sure didn't keep any receipts. Sealant wouldn't do any good under water.
For example, a fence built using treated posts zone coated with poly coated wood will NOT rot at the ground line. Utility Companies Using Poly Coating Wraps Utility companies benefit from the amazing polymer coating with savings of labor and materials costs.
Treated wood can do quite well when it is moist (like in concrete). What really eats up the wood quickly is the alternate wetting and drying you get from the soil at ground level. If you ever look at the old posts on ocean piers, the wood is fine below water level and above, but rots near the water line where the tides cause wetting and drying.
Pilings Treated Wood and Alternatives. Note: This factsheet is a summary of information compiled by the Coastal Commission’s water quality staff. It is not a finding by the Coastal Commission and this factsheet may be superseded by site-specific information. Background .