📈 Why More Manufacturers Are Approving ASTM 2659 Impedance Meters for Moisture Testing
One trend that keeps accelerating: manufacturers are explicitly calling out ASTM F2659 electrical impedance meters as approved tools for moisture evaluation. This is a big shift from a few years ago, when these meters were often treated as “screening tools only.” What’s driving it? ✅ Non‑destructive testing Manufacturers want moisture data without drilling, patching, or damaging assemblies—especially in finished or occupied spaces. ✅ Speed + coverage Impedance meters allow technicians to scan large areas quickly and identify moisture patterns, not just point‑in‑time readings. ✅ Repeatability ASTM 2659 provides a standardized method, which gives manufacturers confidence in consistency across jobs, techs, and regions. ✅ Better decision‑making Instead of guessing where moisture might be, manufacturers can now require documented scans before remediation, flooring installs, or warranty decisions. What this means for contractors & inspectors: • If you’re not using an ASTM 2659‑compliant meter, you may already be behind manufacturer expectations • Documentation from impedance scans is becoming more defensible • “Approved tool lists” are expanding—and meters that meet ASTM 2659 are showing up more often Important note: Impedance meters still don’t replace in‑situ probes or RH testing where required—but manufacturers are increasingly recognizing them as a legitimate, primary assessment tool for many applications. To name a few: 1. Cali Floors 2. Trafficmaster 3. Artisan Hardwoods 4.Tarkett(qualitative purposes) 5.Sika 💬 Curious: Which manufacturers have you seen specifically call out ASTM 2659 meters in their documentation? And how has that changed the way you test or report moisture?