From wood finishes expert Bill Feist: Most pressure-treated wood sold in lumberyards is treated with CCA (chromated copper arsenate). If a particular landfill has restrictions against traditional treated wood, it may accept Wolmanized Outdoor wood. I will outline below several of the more common wood choices for outdoor furniture use, as well as some of their advantages and disadvantages. Avoid frequent or prolonged skin contact with creosote-treated wood; when handling the treated wood, wear long-sleeved shirts and long pants and use gloves impervious to the chemicals (for example, gloves that are vinyl-coated). When treated wood is burned, the chemical components of the preservative are concentrated and can be released into the ash and in particulates in the smoke.
What that means is if your lumberyard does not carry 2x lumber with the proper amount of preservative (for ground contact) and you use it for a raised garden or bury it, you might find the material rotting in short order. Wood is an environmentally sound, economical building material that can be used either indoors or outdoors for a wide variety of structural and decorative applications. Don’t feel the need to read that first bullet point over again, we did indeed say that you can create an entire backyard porch out of wood pallets! Treated wood may be specified for Interior Framing where termite attack is prevalent, or where fire retardant materials are needed.
I just restored an oak front door (with side panels) in New Jersey where this follow up” maintenance wasn’t done and the door faded” from new factory finish at the top to raw wood at the bottom because the soffit protected the top of the door while the bottom took a tremendous beating. In New York State, CCA-treated wood may be disposed of in construction & demolition (C&D) debris landfills and municipal solid waste landfills which are authorized to accept construction and demolition debris. For more information visit the American Wood Protection Association (AWPA) web site.
AWPA’s Standards are universally specified for wood preservation in the US, and are recognized worldwide. Incising is the process of cutting numerous small slits into the surface of a piece of wood in order to increase the amount of preservative taken up by the wood during treatment. In buying wood for fences, people should get pressure-treated wood for posts, says Ethan Elaison, co-owner of Elaison Lumber in Fresno.
Preparation before recoating with varnish might include stripping off all the old varnish right down to the raw wood. Do not use pentachlorophenol-treated wood where it may come into direct or indirect contact with drinking water for domestic animals or livestock, except for uses involving incidental contact such as docks and bridges. In most cases, when it comes to outdoor woodworking projects, the part that comes in contact with the ground is end grain.
Wet treated wood: The most common kind is still wet when you buy it. It’ll be noticeably heavier than kiln-dried lumber. Pressure processes are the most permanent method around today in preserving timber life. It’s just as important to keep your better half happy as it is to clean and protect outdoor wood furniture. The effect of Eco will however continue to treat the wood by migrating into new cracks and colouring newly exposed wood. Benjamin, I used Waterlox marine extensively on the douglas fir trim and even a small outdoor bar for 6 years on my house in San Diego.
Should you desire a different look, cedar readily accepts most stains, outdoor paints and wood preservatives. A: Our warranty for all Extra Green treated lumber with Copper Azole covers any product damage from fungal decay to termite damage. Since it contains high levels of copper, ACQ-treated timber is five times more corrosive to common steel It is necessary to use double- galvanized clarification needed or stainless steel fasteners in ACQ timber. Hardware and Lumber Store: You can always find a pallet or two lying around a lumberyard.
For those who haven’t already guessed it, exterior-paint is the most common unnatural finish applied on basic-use outdoor wood. Because of concerns raised by its study, EWG petitioned the US Consumer Product Safety Commission (CPSC) for a ban on the use of CCA-treated timber for playground equipment. I have a flat packed used shed made from T&G pine, all has been stained previously which is where my dilemma is as when I read preservatives they often refer to smooth or rough finished wood and un treated, my shed is smooth but treated.
You can improve your odds against fungus by using a hardwood that has a high resistance to decay; such as a dense or oily wood that soaks in water much slower than other woods. A rough-sawn wood surface will hold paint and stain much longer than a smooth, planed surface, which is why many contractors prefer to install siding rough side out. They should be coated as needed with an oil-based wood preservative (not paint or opaque stain) to seal in the chemical preservative.