Why Subfloor Moisture Testing is Mandatory for Luxury Vinyl (LVP/SPC)
Luxury Vinyl Planks (LVP) and Stone Plastic Composite (SPC) click flooring have become the dominant choice for modern Gauteng homes, corporate offices, medical suites, and boutique retail spaces. They offer 100% waterproof wear layers, hyper-realistic timber embossing, and superior acoustic dampening.
However, an alarming number of vinyl installations in Johannesburg and Pretoria suffer catastrophic failure—including plank cupping, peaking joints, adhesive emulsification, and black mold growth—because contractors skip subfloor moisture testing.
SANS 10070: Code of Practice for Resilient Flooring
The South African National Standard SANS 10070 mandates that concrete subfloors must have a moisture content of less than 3.0% (or 75% Relative Humidity) before installing resilient vinyl floor coverings. FloorLab performs scientific testing on every project:
- Tramex Non-Destructive Electronic Impedance Moisture Meters for fast surface scanning.
- In-Situ Relative Humidity (RH) Probes inserted into drilled concrete test holes for deep structural moisture measurement.
- Epoxy Moisture Vapor Barriers (MVER Suppressors): When moisture exceeds SANS 10070 thresholds, we apply 2-component epoxy moisture suppression primers that block rising damp indefinitely.
