Hardwood Floors February/March 2017

By Jason Elquest TECH TALK

“Wood floors can’t be installed in Arizona; it’s too dry!” This is something that we hear weekly at our showroom in Scottsdale. Then after some education about wood floors and our unique environment, the answer is of course, “Yes, you can!” I am sure that everyone has had similar experiences of misinformation. There are just some things that you need to pay close attention to in order to ensure success. It is really no different from installing in other regions. All regions have unique requirements for successful wood floor performance. I am not going to talk about humidifiers. Humidifiers require a separate article, and I am by no means an authority on them. I started my company, Blackhawk Floors, Inc., in 2001 and since then we have worked on more than 4,000 projects, of which we have had humidifiers in six of them. Three of which were museums. So for me to take the easy road and just tell the customer that they must have a humidifier is not going to be very profitable or realistic. I don’t have one in my own home. We have to find ways to successfully install wood floors in a dry climate. Arizona is DRY. We do experience humidity, but it happens during our hottest time of the year when HVAC units are running nonstop pulling moisture from our air. This makes us relatively stable compared to other areas of the country that can range from virtually no relative humidity to 100 percent relative humidity seasonally. Phoenix averages 37 percent RH annually outside. And with the records that we have kept and documented at our home we have an average of 32 percent annually inside. The high we experience is in the mid-40s and the low is in the low 20s. The extremes happen for only a couple of weeks and then return to normal. I am telling you this to give you background on why we acclimate our wood floors the way we do. For the average home we want our wood floors to be between 6 and 6.3 percent moisture content. If we attain this MC percent before our install, then our floors will move very little throughout their life span. We always check RH percent and temperature at the time of our first visit to the home. This starts the acclimation process Things to Consider When Installing Wood Floors in Dry Climates ACCLIMATION

ROY REICHOW

There are many different multifunctional adhesive moisture control systems on the market and they are great if they are applied according to manufacturer’s guidelines. But in many cases, when we see a failure, it is due to the application process, not a system failure. Primarily, it’s the stop and start location of adhesive where the installer has a break in the moisture control system and bond connection to the substrate. This is outlined in the photo above. This will create a weak spot in the adhesive bond, and when placed under stress from moisture, this location will buckle, which is why it’s so important to read manufacturer’s guidelines.

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