More on that in the following paragraph. Testing Moisture Content of Concrete Floors and Slabs - The Spruce I read your article and really like it. These scale readings can range from 0.2 to 50% moisture content. I have built two table tops (douglas fir) that have both suffered major cracking in their final location. So what is a normal reading on a moisture meter? These are slabs roughly 2 thick. Pin-type meters are also sensitive to the woods chemical makeup, which varies according to species. Mandi, I recommend you contact the National Wood Flooring Association (NWFA) in St. Louis. I love trying out new equipment, and together with my team I've been creating in-depth blog articles since 2016 to help loyal readers with tools & crafting tips. The acceptable moisture content in wood depends on two factors: The wood's final use. You cannot know if a piece of wood is right for your project unless you know its moisture content. The average annual relative humidity will play the biggest role in determining what the optimal MC should be. However, this time I was planning to use oil based poly rather than the spar urethane to reduce the amount of yellowing. For more information, see our article comparing Pinless Moisture Meters vs. Pin Meters. water leaked over the edge. Does coating wood with oil stabilize the moisture content in wood? This method uses the oven-dry method and then compares the results to those obtained using a moisture meter. Oiling the surface does not control the moisture in the wood. Well, tile, bricks, and stones are known to have a low water-holding capacity and therefore should be dry. A general rule of thumb for the coastal regions of FL would be 11-13%MC. Necessary cookies are absolutely essential for the website to function properly. My first question is how to determine the MC of eng wood flooring which composite of different species layer, face and different species to form plywood core. Hi Larry Thanks for your expertise! A moisture meter can help pinpoint wet areas. Im looking for the % number that will be my upper boundary for oil application Would 12% be ok? Some moisture meters use a range from 0-100 and others use a range from 0-300. Colorado is cold and dry. Elaine. However, pinless meters require a flat, solid surface to work properlyif the scanning plate cannot make smooth contact with the surface of the material being checked, the meters accuracy will be reduced. With a Wagner L606, I am getting MC readings 12%->15.5% . Summers are hot and dry while winters can be cool. Failure to allow the wood to acclimate or come into balance with the RH at its end-use location could result in any number of moisture-related problems after the wood product is constructed. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. As the humidity increases, the MC increases, causing the wood to expand. However, theyre somewhat slower at testing moisture over large areas and the pins/electrodes may be prone to breaking when forced (though most meters make replacing broken pins easy). Should I be concerned or just keep any eye out? So chart would indicate around 9%. If you want, just give me a call at 800-634-9961, ext 225. How long will it take to get to the ideal moisture reading and is it better to be stored in a garage or inside a house?

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