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Indoor Sports Monthly – October 2016

Volume 6, Issue 1

An underlayment like Tarkett's Tarkolay can be the answer to more than just moisture problems. It can address other concrete conditions as well. It does this by effectively separating the flooring from the subfloor underneath.

GreenLay

Changing the Game

If you have not taken the time to learn about GreenLay™, you should. Since 1995, this innovation from Tarkett has raised the standards of sports flooring by creating less waste, facilitating end-of-life recycling, and allowing faster installation. For a quick overview of GreenLay™ and its benefits, watch this one minute video at tarkettsportsindoor.com. If you specify resilient athletic flooring often, this system will change the way you think about environmentally responsible installation.


Tarkolay

Tarkolay is More than Just a Solution for Moisture

When it comes to mitigating the effects of moisture on your sports floor, Tarkolay is second to none, but did you know it can also be used to address other common issues related to your subfloor? Tarkolay is Tarkett’s FloorScore® certified underlayment that separates the flooring surface from the concrete underneath. During installation, it is loose-laid on the subfloor. Then a resilient surface, such as Tarkett’s Omnisports™ or PolyTurf Plus Pad and Pour, is fully adhered on top using Multi-Poxy adhesive. This creates a system that is essentially floating over the concrete and thus is not effected by even the highest moisture content. In fact, Tarkett Sports does not require ASTM F2170 moisture testing prior to installation. This separation of the floor from the concrete has another useful benefit. In cases where concrete has expansion or control joints, it allows the slab to move somewhat independently without disturbing the flooring above it. Most importantly, a Tarkolay installation has the same sports performance properties of any other installation method. If you are interested in learning more about the many useful applications of Tarkolay, contact a Tarkett Sports representative or visit tarkettsportsindoor.com.

Testing Results are Only as Good as the Tester

In Situ Probe TestThere are no shortcuts to a good sports floor installation. A crucial step in the process is testing the concrete slab for moisture. There are several methods for understanding the moisture content of a slab, but the approach Tarkett Sports recommends for its flooring is ASTM F2170, which measures the relative humidity (RH) within the slab.

ASTM F2170 can provide valuable information, but any testing method takes a well trained tester to reliable and predictable results. There are numerous variables to consider, such as temperature, ambient humidity, the presence of a vapor retarder, and other site conditions. The flooring contractor or general contractor conducting the tests has so many unique observations to make that you might say it is more of an art than a science. This means that proper training from experienced professionals is critical. Luckily, the International Concrete Repair Institute (ICRI) has a training program that covers current ASTM language for moisture testing. To inquire about the program or to find a certified tester, visit icri.org.

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