Our Services
Relative Humidity and Vapor Emission Testing
Before installing high-performance coatings, overlays, or commercial flooring, verifying the slab's moisture condition is critical.
RH vs. Surface Emission
Before installing high-performance coatings, overlays, or commercial flooring, verifying the slab's moisture condition is critical to prevent future bubbling, delamination, and adhesive failure. The industry relies on two primary, distinct diagnostic methods: In-Situ Relative Humidity (RH) testing and Moisture Vapor Emission Rate (MVER) testing. While they both evaluate moisture, they measure completely different variables.
In-Situ Relative Humidity (RH) Testing
ASTM F2170Uses specialized probes inserted directly into drilled holes to measure the internal humidity deep within the concrete core.
Moisture Vapor Emission Rate (MVER) Testing
ASTM F1869Utilizes an anhydrous calcium chloride dome kit placed on the slab surface to measure the actual weight of water vapor escaping from the concrete over a 60-to-72-hour window.
Key Benefits
- In-Situ RH testing per ASTM F2170
- MVER testing per ASTM F1869
- Prevents bubbling, delamination, and adhesive failure
- Ensures compliance with flooring manufacturer warranties
- Guides selection of moisture vapor mitigation systems
- Comprehensive deep-slab and surface testing
- Serving VA, MD, and DC
Why testing with CMT America safeguards your project
Relying on just one test method can leave your flooring system vulnerable, as surface-level conditions frequently fluctuate with shifting ambient temperature and room humidity.
Comprehensive deep-slab and surface testing by CMT America accurately predicts the internal moisture equilibrium that will eventually rise to the surface after the floor covering seals the slab.
Because manufacturers of industrial adhesives, epoxies, and floor systems typically outline rigid threshold limits for both parameters within their subfloor preparation criteria, our certified testing services ensure compliance with these strict warranties.
Partnering with CMT America guides the proper selection of moisture vapor mitigation systems and safeguards your long-term flooring investment against catastrophic moisture damage.
Need RH or vapor emission testing?
Contact us today — VA, MD, DC.