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Should you check moisture levels on a trailor floor on a massive rainy day? Thats why I think the wood is either not dried to 14%, or it has picked up too much humidity after drying. Thanks!!! Which Orion moisture meter model would you suggest for my application? The EMC in the recommended temperature/humidity range coincides with the 6% to 9% range used by most flooring manufacturers during the manufacturing and shipping process. However, it As the airs RH increases, so does the moisture content of any wood exposed to the air. The acceptable wood moisture content normally ranges from 6% to 8% for woodworkers who build cabinets, fine furniture, musical instruments, dishes, toys, decorative art, boat restoration, or various other wood products. I have removed the 1 3/4 edge and resawn to take out the splinter (1/4) re bicuited . Unless something is so out of whack shimming in back of the sheetrock won't suffice it's OK here. Question for the expert: i recently replaced a toilet that had a leaky wax ring. Soil is almost always damp. At this home, cool objects include the air conditioning ductwork, the ground and the overlying wood floor system, which is exposed to very cool temperatures due to air conditioning duct leakage. This article is really helpful. Its not growing or feeding on the wood. if not, can you tell me why? Currently the RH is 76%, the residence RH will be set at around 35%. Wall Corners-Perpendicular within 1/4" in 10'. Either one should be acceptable for finishes. Currently reading a 12.5%. Hello, I am renovating my kitchen and installing hardwood floors. The water was there for at most 6 hours, then we vacuumed it all and started the process of drying. Having performed multiple (>500) soil moisture and density Sieve and Proctor, so I am well versed in moisture calculations (both add and subtract). Please commenr? While oven-dry testing, if followed correctly, offers accurate results, there are a few drawbacks: These three drawbacks mean that oven-dry testing usually isnt the option of choice for hobbyists who work with wood. 25-30 - Actual, and often extensive, damage is evident when readings reach this level. An MC in this range, therefore, is considered sufficiently dry for exterior in-service wood. I live in Atascadero CA and had a coastal red oak tree cut down this past summer. The angle iron will prevent much warping, and I do plan on finishing all sides (and ends). The solution seems to be drying the wood longer & bettter, to a lower measured MC. Step 1: Check the Floor. However, this range will vary slightly according to the geographic region because of varying RH levels. Many of our customers are successfully using our hand held moisture meters on engineered flooring. Add an answer. Im down to ~13-19% MC near floor level, based on a cheapo moisture meters readings. Its mc is 11- 12% . Floor joists transfer loads to the vertical beams of the house. within two percentage points of the EMC where the wood is going to be used. This can lead to rising damp, dry rot, timber decay, fungal growth and borer. 16% - 20%- Readings in this range indicate a possible elevated level of wood moisture. The moisture content of freshly cut wood is typically somewhere between 40-200%. I read your article and really like it. Substructures with WMC in this range may show decay or rot in floor joist, sills, and subflooring. This will stop the wet/dry cycle that exists every year, in every ventilated crawl space containing A/C ductwork in the SE United States, over their lifetime. I have about 3,000 sqft on my first floor and this was relatively consistent throughout. . SE, Huntsville, AL 35802. In general, 12% moisture or above is too wet to install flooring. This site uses Akismet to reduce spam. Looking back at pictures of the build process, they brought the hardwood bundles into my home in late October of 2017 and installed them 3 days later. Too wet and you get fuzzing. Some of the unfinished wood you see on the market has been kiln-dried to reduce its water moisture content to around 8% so that it wont suffer from moisture-related defects like warping and buckling. Drying equipment removed 3 days ago. This summer I milled several 1.25 boards from a fir log that had been cut around 10 years ago. Was told thats not done. Kiln-dried timber should be kept dry. These are typical readings for exterior wood. The engineered wood floor appears ok. Whether youre a woodworker making cabinets, a wood flooring professional installing hardwood floors, or if you use wood in construction, wood moisture content (MC) should be always on your mind. Should I wait for the slabs to be within that 6-9% to cut and glue? Second, would the same pine slab, would it be okay to use for a side table or Kitchen island. Signs Of Moisture In Basement. I hope that helps. If any of these conditions occur, tell your installer right away. However, the ideal humidity range in some climates may be higher or lower. Is your electrical outlet that is 3 inches above the floor inside the house? What can we do to get the row products closer in moisture content, we are currently using fans, We are in northern lower Michigan I am the general contractor for the house, and want to avoid any problems, would love to talk to you on the phone, my number is 9894647248, Mark Skiba, This is a great site about moisture content. The humidity in the room is currently 40! So what do you think is the ideal moisture% I should dry them to before rotary polishing them? This means a very absorbent wood can retain more water, weight wise, the weight of the wood itself. Substrates must be protected by: Writing all the way from Australia, Steven. All Rights Reserved. Moisture contents of 12 to 17% is ok. You dont want to see any subfloor reach about 25% which is where mold will start to grow. The wood sample being tested is dried in a special oven or kiln and its weight periodically checked. I had a water leak under my crawl space which has 3 inches of foam insulation applied to the underside of the sub floor. The company they hired measured 47% in the wood and declares that this must be ripped out and replaced. my question is, is there a possibility that the wood will shrink because of the weather condition?the wood that we used for the door frames and bidding is beechwood. Knowing were all the piers are, I can stand on top and feel a small hump in the floors. The water eventually came out a electric outlet located three inches off the floor. The shipping time is approximately 45 day in a 40 container to the west coast . Now the fungus goes dormant. I cant speak for other pinless meters but our Wagner meters are not sensitive to the temperatures you indicated. Typical humidity levels inside a home is between 40 to 50%. There will be statistical outliers on both the low and the high end and youll want to catch these by using a quality moisture meter. board. Phil, what are you making with the cedar, and in what type of environment will it be? Im looking for the % number that will be my upper boundary for oil application Would 12% be ok? We have had very bad cracking in sheetrock and floors. Do these levels seen appropriate considering the recent rainfall. We have a free App called WoodH2O that will tell you the moisture content given certain temperature and humidity conditions. What do you recommend the reader to be at before insulation and drywall on new construction? The Las Vegas EMC of wood or lumber ranges from 4.0% to 8.5%. i did not waterproof the outside of the curb (kerdi), so the wood got wet. Thank you for the information, I use a lot of trimmed for for children toys, menu times I use rings of 1-3 inch in diameter, For these purposes I dont care for wood shrinkage or wraping, Two things are important for me that wood will not crack, and that mold wont develop. Also, there is a risk of mold. I would love to be able to give you the perfect answer but unfortunately, there isnt one. Lets go over the basics of each, Oven dry testing is the oldest method for measuring the moisture content of wood. After reading your article and following comments, my question is : How much does the finish of a wood project for indoor use affect the moisture content? With the WoodH2O-app I could deduct the EMC for The Netherlands would be between 15 and 16. Since the cold weather has come on, the organic growth has gone dormant, but a contractor noticed joists with distinctive moisture content where there are definitive separations between dry and wet looking wood. I took readings of the moisture of the sub floor at the edges of the wall and it ranged from 5 to 16, problem is i cant take it in the middle of the floor unless i rip the floor out. Repair is often required when WMC readings are in this range. The joist span tables start with 26 lumber and it goes all the way up to 212. Floor joists are generally 6, 8, 10, or 12 inches in width, with 8 or 10 inches as the most common sizes. I not sure if this is normal, related to the re-shim or need to install a crawl space dehumidifier to slow the progression? In your area, wood that has been in an environment to a duration of time would be between 6-11%. 1. There are two main types of wood moisture meters, pin-type and pinless. This building was constructed around 1966 and this little space appears very dry, in spite of a recent leak from an nearby hot water tank. Logs, siding, shiplap, and T&G must be kiln-dried to stop the wood from shrinking or pulling apart. Doesnt sound like this has been a problem in the past. I purchased my newly built home that has to meet all the new energy efficient standards and will be 2 years old this coming month. The excess moisture source should be corrected if found. The optimal humidity in a home is generally 35%-55% and anything under 20% is actually considered unhealthy, as it dries out the skin. Toilet overflowed and moisture meter is reading 30% in worst area. What is the acceptable water/moisture content in cassia bark?- in south east asia. Hi, we live in a coastal area, had a recent water leak, and a hard wood floor MC is measuring about 25% the water did not contact this area directly. The interior was 3/4 BW the tables dimensions were 40x 70 . These mold spores land on the wet wood and take root. Congratulations on your new furniture. I buy many Artificial Trees for our Stores, which has Wood Stems/Barks, mainly produced in China & Shipped to UAE. A termite repair company (also licensed contractors) told me that I needed to replace the planks on my second story deck. In March of this year I had new white oak 2 flooring installed. Failure to do this will result in warping, cracking, and other problems after the construction of the wood product. These are the "safest" conditions for most types of woodbetween 60 and 80 degrees Fahrenheit and 30% to 50% RH. Call 256-318-0982 or contact us today. -XF% The wood will still react in humid or dry conditions. The boards have dried nicely so far with minimal warpage or checking. how do I determine the mc standard for this material, is it the same as wood or has its own specifications, 2. Do NOT install the flooring planks until these moisture content levels are achieved. What is a Proper Structural Engineering Inspection? They are in an unheated and currently very cold barn The moisture ranges from 11% -16% according to my meter. My main concern here is that the flooring didnt have enough time to acclimate to the surrounding conditions. I have a question, I have moisture in the crawl space, we insulated the crawl with closed cell, cannot get the osb subfloor below. The next question is almost the same as before, if we have various kinds of wood, such as March wood, mango wood, pine. In fact, according to M. Steven Doggett, Ph.D. LEED AP, the founder of Built Environments, Inc., wood moisture content as high as 15% can cause corrosion of metal fasteners and at 16% may lead to fungal growth. The typical moisture content for hardwoods that will be indoors is 6-9 percent. 24 and 26 framing studs should measure 19% moisture content or less. Three years ago, the floor sank in a heavy traffic area and an engineer told me Masonite was used to shim and had compressed. Water Level Survey: Are You Smarter Than an Egyptian? A contractor is measuring sill plates by driving 2 SS Screws into the wood about 1-1/2 or so inches. Other than causing structural damage, too much water can result in mold growth. Wood moisture content is always varying. Live in Tn. We dont know if we still have leaks? Grain orientation matters Would you be able to say anything about the optimal MC range for this specific situation? Hello Enjoyed the article. Im on a grade-level concrete slab, and the water made its way over (under the tiles) to my sink vanity. But this wetness is only surficial. Hello! Box 1088, Roseburg, OR 97470 Tel. Yes, the wood can still be read for MC with a stain on it. Back to top. WMC of framing members in a crawl space will usually be lowest in late winter and highest in late summer. It is not fair to ask the seller of this home to pay some pest control firm to spray Borate on the floor system. Every home's foundation repair needs are different based on soil type, type of foundation problem, and climate. Down pour of rain onto underlayment of attached garage. z .XWb*QGF^v4MQ`_dRw{\;\'03Uhx-SeJlc!m\8X^,Z/hU5Ewdzz:`nZ!(7reWD4X. I live on the fl coast so what should the moisture level be? So, i had one installed a few weeks after we met. We also have an Orion 950 moisture meter that will automatically give you EMC (Equilibrium Moisture Content) and other useful statistics. The floor (under carpet) had long-term water exposure supposedly from a shower in the adjacent bathroom (according to the plumber). I suspect the screws may be skewing the measurements. Also, please feel free to provide us with the number that you called so we can make sure that all of our phone numbers are printed/posted accurately!

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