how to treat wood for ground contact
I would recommend a coat of spar or exterior wood oil on the project first, epoxy isn’t UV resistant and will fade over time if outside. Include your email address to get a message when this question is answered. The wood also comes in different types. Wood is used in so many ways, from wooden decks, houses, furniture, fences, and the list goes on. I'm making a retaining wall in my backyard underneath my deck. ), and in cases where a high-decay hazard is very likely to occur (e.g. Where i live, NOTHING homespun will keep wood from rotting at ground level. How to Preserve Wood. When treating birch with the bark on, Pentacryl can be applied directly to the wood itself. In construction and housing, ground contact of timber should be avoided in order to prevent the transfer of moisture or insects from the soil. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\u00a9 2020 wikiHow, Inc. All rights reserved. Perma-colmns is a brand name of a concrete column with a metal bracket on top, look it up on line. Other wood projects could be possible too, like outdoor furniture. You have structural wood inside of a sealed plastic pipe a foot out of the soil and surrounded by tar. What to consider when using untreated wood outdoors? Severe Weather above-ground lumber is treated with Ecolife (EL2), a unique formula that contains a built-in wood stabilizer to reduce cracking, repel water and keep wood straighter, longer. Must be used when lumber is less than 6 inches from the ground or has poor ventilation. It is used for below grade applications like wood basements, footings, etc. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. And the price difference is small: On T.W. Thank you. While living in Canada we had snow come around every year and we had to keep the wood sealed properly. On some species of wood, Ground Contact treatments leave marks, making Above Ground treatment a preferable option in some cases. I hope you found the best solution on how to treat untreated wood for outdoor use! This type of treatment is essential to protect most types of wood in direct contact with soil. A battle is raging in the treated lumber aisle. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Yes. Check it to find the type of preservative used. Treating teak decking you might think teak oil is best, but there is a teak wood natural finish called Semco and any expert would agree its the best treatment for weathered or teak in need of a treat. Epoxy is thick and will prevent water damage and even surface damages to the wood. “I think you need to have both. Paints, stains, varnishes and oils are not designed to seal the structure of the shed, and prevent water from getting in and I would perhaps get in touch with the shed manufacturer or supplier to see why this has happened. But now retention levels vary depending on the preservative used. Treat the Post With Preservatives. Laboratory and field studies have verified the effectiveness of the MCA treatment in above ground and ground-contact applications. Associations other than the AWPA don’t give their treated wood this type of rating. When untreated water and sun will damage and decay the wood quicker. Here, the PWF lumber is CCA treated, not ACQ since you don't have to worry about human contact like you would on decking, etc. There are 18 references cited in this article, which can be found at the bottom of the page. Water will collect here and contribute greatly to wood rot. Minwax Helmsman Spar Urethane (Gallon or Spray Options). The characteristics of redwood make it a popular choice for outdoor applications. Treatment for wood to be used below ground is different than that for wood to be used above ground. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Use the right wood for the right job. The wood should still be treated against fungal attack (pressure treated is good). I still don't see any reason why this wouldn't work. Viance provides unsurpassed preservative solutions for both types, Ecolife and Severe Weather brands for above ground applications and the Preserve brand for both above ground and ground contact applications. Severe Weather above ground is used for any exposed area at least six inches off the ground and is ideal for decking, fencing, arbors and trellises. If you live in a fairly arid environment, fungi may not be much of a concern for your posts. Ground Contact Ground contact shall be taken to mean permanent and direct contact with soil. Also, pressure treated wood is not an option as the chemicals used to pressure treat are debatable as far as their effect on chickens, organic eggs etc. The best way to treat teak for outdoor use is using teak oil, however, teak wood is already super weather resistant, its already going to last for decades so teak oil is not necessary. Following this step, if everything checks out, ensure the wood is dry. The preservative retention for both CCA- and ACQ-treated lumber is .25 for above-ground applications and .40 for ground contact. Of course, one of the easiest ways to avoid having a rotting post on your hands is just to use a metal post instead. Regardless of whether you’re using the post for a fence or a mailbox, remember that water causes rot. These water sealers have the proper oils and protective materials for all types of weathering and mildew issues.eval(ez_write_tag([[300,250],'thebackyardpros_com-large-mobile-banner-1','ezslot_17',120,'0','0'])); After answering various questions related to treating untreated wood and what are some ways to treat wood, I hope you found the answer you were seeking. The retaining wall will cover the posts with a few feet of dirt. You should be able to find southern pine—or whatever other wood you choose to use—at a local hardware store or lumberyard. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. If used for a fence, you might see the lower portion of the fence decay quickly when it remains soaked and especially if in contact with soil. Treat the cut ends of both .40 and .25 types with preservative. By most accounts, Ground Contact is winning. Approved for Aluminum Contact. Soak the bottom of the posts in a wood preservative containing copper napthanate, such as Cuprinol. If you want to protect a wooden post from rotting in the ground, opt for wood that has been pressure-treated and has a 4A or 4B rating on the tag, as these woods are especially resistant to rot. Definitely, don’t use bleach, chlordane, or insecticide. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Choose yellow pine for an easy-to-treat option. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Considering wood maintenance, cedar requires very little. A portion of the copper naphthenate treated wood should be exposed above ground. Wood treated to ground contact levels is required for direct contact with the ground (e.g. Pressure-treated wood in contact with the ground needs the most protection, and will rot in just a few years if you use the wrong grade. 4x4 and 6x6 and larger beams and posts will receive a ground contact rating. It isn’t too expensive in the difference. You don’t expect good air circulation, especially on … Fortunately though, there are a few preventative steps you can take to ensure that your wooden posts won’t rot in the ground and that they’ll stand for years. Availability won’t be a problem because T.W. How to Aerate Your Lawn | Why, When, and How? They are easier woods for creating decks and fences, while the costs are much lower too. That's not necessary. If you place untreated wood in the ground it will rot rather quickly and your project will not be any good. Heavy Duty Ground Contact . Above Ground. When building a pine fence or deck, use a wood sealer for ultimate protection. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image may not be used by other entities without the express written consent of wikiHow, Inc.