Calcium Chloride or In Situ RH? Choosing the Right Concrete Moisture Test

Choosing the right concrete moisture testing method can determine whether a flooring installation succeeds or fails. In this video, Jason Spangler, Vice President of Sales at Wagner Meters, breaks down the key differences between calcium chloride testing and in situ relative humidity (RH) testing. Jason explains how each method works, the pros and cons of both approaches, and why understanding what each test actually measures is critical before making installation decisions. By the end of the video, you’ll have a clearer understanding of which testing method delivers the most accurate picture of concrete moisture conditions and why accuracy matters when protecting flooring systems, materials, and your reputation.

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