5 minute read
The Concrete Slab RH Test — So Easy Your Whole Team Can (and Should) Do It
FLOOR ED
The Concrete Slab RH Test — So Easy Your Whole Team Can (and Should) Do It
Advertisement
Every year North Americans spend an eye-watering hundreds of millions of dollars on fixing moisture-related flooring failures. This may be happening in part because they see slab RH testing as an obstacle, rather than an obvious and necessary procedural step.
There are a few reasons why RH testing is sometimes missed:
■ There’s a misperception that it’s a complex procedure with many moving parts.
■ There’s a fear of performing the test incorrectly and getting unreliable results.
■ Finally, there’s the simple fear of trying something new.
Jason Spangler
Wagner Meters’ Flooring Division Manager Jason has more than 25 years’ experience in sales and sales management across a broad spectrum of industries. He has successfully launched a variety of products to the market, including the original Rapid RH ® concrete moisture test.
Jason, who received an MBA from West Texas A&M
University in November 2018, has extensive industry involvement, including the National Wood Flooring Association (NWFA), the International Certified Flooring Installers
Association (CFI), and is Vice Chairman of Associations for The
Flooring Contractors Association (FCICA). Call
Wagner Meters today at (844) 533-9100 and ask for Jason, or visit www.wagnermeters.com. So, let’s address these stumbling blocks one by one, starting with...
Isn’t RH testing a complex procedure? Not at all. The Rapid RH test system from Wagner Meters is easy to use. Here’s how it works. Drill a hole to the required depth, insert the probe, wait 24 hours, and then take a reading. That’s it.
The Rapid RH L6 then allows you to either document the results on paper or send your sensor readings (including ambient temperature and relative humidity (RH)) to our DataMaster app on your smart device.
The Rapid RH L6 also provides you with a way to automate the process of collecting the readings. This is especially helpful if you don’t have the time to continually take readings at regular intervals.
What if the test results I get are wrong? They won’t be if you perform the test properly.
To make sure you perform the test correctly, get a copy of the ASTM F2170, and make sure your RH testing system complies with the standard. If you follow it, the ASTM F2170 standard will protect you against liability and finger-pointing. We also have a downloadable F2170 checklist to help you (available at www.wagnermeters.com/f2170-checklist).
The Wagner Meters Rapid RH L6 complies with ASTM F2170. If you correctly follow the instructions for fast and easy installation, your test results will be useful.
F a s t E R , M O R E A c c u r a t e M o i s t u r e T e s t f o r C o n c r e t e F l o o r s
T H E B E S T R H T E S T J U S T G O T B E T T E R
• Simplest F2170 Test • Improved Technology and Responsiveness
Especially in High RH • Integrated Data Storage • Lowest Cost/Test
WWW.RAPIDRH.COM (844)533-9100
“But we’ve always done the calcium chloride test” While the name of the test may sound scientific, no documented science or laboratory pedigree supports the reliability of this test. In fact, concrete slabs certified by F1869 were plagued with so many moisture-related problems, that industry professionals began to have serious doubts about the integrity of the calcium chloride test. Here’s why…
The calcium chloride test only measures the top ½-¾ inch of the slab. This is a problem, because the wettest part of the slab is deeper than three-quarters of an inch. When this deep moisture eventually makes its way up to the surface, it can’t evaporate if the concrete has been covered. This can easily result in flooring failure. The calcium chloride test also tends to “pull” moisture from the slab. This can lead to overestimated moisture vapor emission rates.
RH testing is easy, inexpensive, and can save your reputation RH testing will save money for you. However, it will also save your team from red-faced finger-pointing, as well as your
professional reputation. Best of all, RH testing is easy. Your
entire team can and should be doing it.
For more information on RH testing, visit rapidrh.com.
You’ll find an entire library of videos, articles, and educational
content. There’s even a webinar about concrete moisture
testing that will take you from zero to hero in about an hour.
Once again, because we can’t stress it enough, RH test
ing is easy. Very easy. It’s a simple procedure that, if per
formed properly, will protect your floor against expensive
moisture-related failures. ❚
The ASTM F2170 is more reliable than the calcium chloride test
The ASTM F2170 (in situ probe testing) has been scientifically proven to provide more accurate results about the moisture content in concrete slabs over which flooring will be placed. For more information, see Drying of Construction Water in Concrete by Göran Hedenblad and Concrete, hardened: Relative humidity measured in drilled holes which can be obtained from Nordtest.info.
Once again, because we can’t stress it enough, RH testing is easy. Very easy. It’s a simple procedure that, if performed properly, will protect your floor against expensive moisture-related failures.
