11/08/2026
This white paper discuss a need to standardize moisture measurement in LVT
So I got some point using ai to help breaks done for a quick read
Key points I’d give a contractor/builder
* Don’t treat a moisture-meter reading on the vinyl as a definitive moisture result. Most meters are not calibrated specifically for the complex composite materials used in LVT/LVF.
* The substrate is the critical investigation point. Concrete/slab moisture should be assessed using an appropriate, recognised method and in accordance with the flooring manufacturer’s requirements—not by relying on a reading from the finished vinyl.
* A “% moisture” number on LVT can be misleading. Many meters use wood or other material scales, which do not directly represent moisture content within vinyl flooring.
* Don’t use a garage, porch or another area as a “dry reference” unless the conditions and construction are genuinely comparable. Different environmental conditions or concrete pours can make comparisons meaningless.
* Record the conditions at the time of inspection. Temperature, RH, substrate condition and the location/method of readings all matter.
* Follow the flooring manufacturer’s installation requirements first. If the manufacturer specifies a particular substrate moisture test, that should be the basis for acceptance.
* Think investigation, not just numbers. Moisture readings are one piece of evidence. They should be considered alongside installation history, adhesive condition, slab construction, vapour control, environmental conditions and the observed flooring failure.
* Document everything. Meter type, setting, location, substrate, environmental conditions and test method should be recorded so the result can be reproduced and defended.
The one I think is most important for builders
A moisture meter reading on LVT is not the same thing as proving the substrate is dry enough for installation.
