I would suggest getting a thermo hygrometer and acclimate the wood as best you can prior to installation. These meters are the most valuable instruments used in the acclimation process. We asked Levon Karapetyan from Northern California’s prestigious Artex Flooring Inc. how he prepared a job site for delivery of wood flooring…he said, “Before we receive a shipment of wood flooring, we monitor the job site to make sure the relative humidity is in compliance with recommended standards, which is 35-60%. Certain conditions should be met before wood flooring is delivered to the job site. Do not store materials directly on concrete, elevate material at least 4″ above the concrete. I’ve always wanted hardwood floors and this article convinced me even more than that’s what I want! Acclimation is the process of reaching this equilibrium moisture content – that is, the point at which the wood is neither gaining nor losing moisture. Unfinished hardwoods are a bit inexpensive to purchase and it requires immediate sanding, optional staining, and sealing after installation, which will require you at least 48 hours for the sealant to dry. This installer also recommends using a very thin glue gun to insert glue in certain areas. Is it OK to install engineered hardwood (3/8 inch) over existing engineered hardwood. Once your hardwood flooring arrives, you need to slow your progress and make sure you let your wood acclimate to its new climate. The flooring company is talking about sanding it all the way down and refinishing it, which means moving us out. Good luck! Thank you for all of the interesting information, wish I had seen this sooner! You can calculate that from various online apps or we offer one for your smart device called WoodH2O. Thanks for the heads up! If the subfloor is too wet, moisture will be absorbed into wood flooring materials and flooring will expand and buckle. If flooring materials retain moisture at the time of installation, the flooring will shrink when equilibrium (EMC) has been reached, which will cause wide gaps and spaces in the flooring. Levon highly recommends moisture meters to flooring professionals: “My moisture meter is always with me. This type of wood flooring is solid all the way from top to bottom. The house is really dry, dryer than it will ever be due to all the dehumidifiers fans and mitigation equipment. GOOD LUCK! If so, I would expect to also see some type of gapping or cupping in the floor along with the problems you are stating. In essence, the material will acclimate faster when all surfaces are exposed to the surrounding conditions. Soundproofing floors or reducing noise is not our area of expertise, so I’d certainly recommend you listen to advice from professionals in that area. But the great thing about solid hardwood floors is that it can be refinished or re-sanded numerous times, extending its life literally for years to come. The major difference with engineered floors is that they may require more time after installation to acclimate before applying a finish due to the use of adhesives that may require time to let off gases. They can then leave the painted base on the job (assuming it is going to be painted) and then the flooring trade cuts the casing with a backsaw and installs the base after the flooring is installed. it’s hot here in the summer (75-90 degrees) and cool and damp in the winter (humid and 50s) there are a few small areas of pet soil damage we are replacing and one area of the home that we are replacing vinyl floors, the rest is all being refinished. Does vinyl plank flooring expand? Be sure to look for recommendations from the adhesive manufacturer. I would very much appreciate any feedback on an issue we are having with our engineered hardwood flooring installed in January 2019. Acclimating solid wood floors is the best way to avoid moisture problems later. The first question in my mind is 1) Do you keep the temperature and relative humidity in the home consistent throughout the year? When they came back after the issue was reported MC was at 5%. We’ve had multiple NWFA inspectors through, but these folks were hired by the builder and will not talk to us directly. Next, you’ll need to calculate the optimal moisture content. I’m 3rd generation hardwood pro, been doing it everyday for over 20 years and I’m in the south so this may not be an issue in other parts of the country. I grabbed some beetle kill tongue and groove to go up on a ceiling in a laundry room. Thanks for your time. Why is the Time so Long? The chart below indicates the equilibrium moisture content of wood flooring at various temperatures and humidity conditions. If you’re a wood flooring professional, you should always have a moisture meter with you.”. Yes, since engineered wood flooring is constructed from natural hardwood it requires acclimation. Because the wood is dead when harvested, i imagine that the wood is pretty dry. After you’ve determined the optimum moisture level that your bamboo flooring, hardwood, or engineered wood should be, you should wait at least three full days to acclimate wood to an optimum level. It doesn’t matter if it’s engineered or pre-finished. Acclimate the moisture content of the solid hardwood floor to +/- 4% of the wood subfloor moisture content. My husband and I are working on a remodeling project for our house, and we are looking for advice. Based on these measured parameters, wood left in that environment will equilibrate to that equilibrium moisture content. They can explain the best way to proceed. This balance could be achieved in as little as 1 to 5 days, or longer for some exotic species. 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