Before you purchase pressure-treated wood for your project, you need to keep in mind what type of project you'll be working on. Is "Pressure Treated" wood required for use on the bottom plate of a framed wall? Usually, the pressure treated lumber bears end tags or stamps that identify the ⦠Do not use for pressure treated wood in ground contact applications or in preserved wood foundations. I've already framed 75% of my basement with standard 2x4x8 pieces (Premium kiln-dried lumber from Home Depot). The longer it stays water-resistant, the longer you wonât have to worry about mold, mildew, fungus, etc. The sun's ultra-violet (UV) rays cause the wood to turn gray. Cut-N-Seal is not recommended to replace pressure treatment. Wood began being pressure treated with chemicals in the early 1900âs as a means for preserving wood that is used outdoors. Iâve heard that youâre supposed to stain the end-grain of the wood to maximize its life. I saw this on Google while searching for something else. Answer: Youâre on the right track. Yes you should use naturally durable (Redwood, cedar), or preservative-treated wood (AWPA U1 and M4) for sills or sleepers on a concrete or masonry slab that is in direct contact with the earth if you want to do it by the book (IBC 2304.11.2.4) and its also a wise idea. All that you need to pay attention to is the green tint. Treated Lumber. For use on Above Ground treated wood products. Not just any lumber will do for wood fencing. Pressure Treated Wood Decking . You want your pressure treated wood to be water-resistant for years and thus, Iâd suggest applying a clear wood preservative like the Rust-Oleum Clear 902 once a year. Pressure-treated wood is subject to these effects, just like other lumber. If you are in the market to replace your existing deck or build a brand new one, you will encounter 3 main types of deck material that you will have to consider using for your new deck. Please tell me it is not required. Newbies and even some experienced woodworkers still find it hard to differentiate the pressure treated and the non pressure treated wood. MicroPro ® AC2 ® pressure-treated wood products are available for above ground (AG), ground and in-ground contact (GC), and ground contact for critical use (GCS) applications. Use Cut-N-Seal ® on areas that have been drilled or saw cut in treated wood deck boards, railing, post tops, fence boards, etc. The drying process creates stresses in the wood, which contributes to cracking and warping. Do not use to recoat pressure treated wood surfaces. Pressure-treated lumber is commonly chosen for exterior projects such as fences, but this is not a cure-all. Based on information found in section R317 beginning on page 65 of the 2012 IRC book. Iâm building with pressure-treated lumber. That is why cedar is a popular material for outdoor projects, as is pressure-treated lumber. Wood swells when it absorbs moisture and shrinks when it dries out. Note that pressure treated pine is my building material of choice but can be substituted with naturally durable heart woods from redwood, cedar, black locust, and black walnut. The ratings are based on the amount of preservative used to treat the wood. Question: Iâm planning to build a pergola. Exposed to the elements as it is, wood fencing needs to be made of rot-resistant lumber. Lumber companies discovered that by forcing certain chemicals into their woods, they could prolong the life of the wood when exposed to wet conditions that are often present outdoors. Learn when to use pressure treated lumber according to the 2012 International Residential Code. Do I still need to stain the ends of the lumber? The wood should also be painted or stained to better preserve it.
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